#!/bin/bash --norc # vim:sts=4:sw=4:ts=8:et # mkdumprd # # Copyright 2005 Red Hat, Inc. # # Written by Erik Troan # # Contributors: # Elliot Lee # Miguel de Icaza # Christian 'Dr. Disk' Hechelmann # Michael K. Johnson # Pierre Habraken # Jakub Jelinek # Carlo Arenas Belon (carenas@chasqui.lared.net.pe> # Keith Owens # Bernhard Rosenkraenzer # Matt Wilson # Trond Eivind Glomsrød # Jeremy Katz # Preston Brown # Bill Nottingham # Guillaume Cottenceau # Peter Jones # Neil Horman # Jarod Wilson # # Note: this scripts use 4 spaces as indent. cmdname=`basename $0` umask 0022 export MALLOC_PERTURB_=204 PATH=/sbin:/usr/sbin:/bin:/usr/bin:$PATH export PATH . /etc/rc.d/init.d/functions VERSION=5.0.39 PROBE="yes" MODULES="" PREMODS="" DMRAIDS="" MPATHS="" CLUSTER_CONFIG_FILE="/etc/cluster/cluster.conf" CLUSTER_NODE_LIST="" FENCE_KDUMP_CONFIG="/etc/sysconfig/fence_kdump" FENCE_KDUMP_OPTS="" CONFMODS="$MODULES" MODULES="" ARCH=$(uname -m) withusb=yes compress=1 allowmissing="" target="" kernel="" force="" verbose="" img_vers="" builtins="" rc=0 IMAGESIZE=8000 PRESCSIMODS="sd_mod" fstab="/etc/fstab" vg_list="" net_list="" USING_METHOD="" SAVE_PATH=/var/crash bin="" KDUMP_POST="" extra_kdump_mods="" DUMP_TARGET="" DUMP_FSTYPE="" SSH_KEY_LOCATION="/root/.ssh/kdump_id_rsa" DMESG_COLLECTOR="/sbin/vmcore-dmesg" FONTDIR=/lib/kbd/consolefonts DEFAULT_FONT=LatArCyrHeb-16.psfu.gz override_resettable=0 DISK_TIMEOUT=180 DEBUG_MEM_LEVEL="0" FIPS_FILE="/proc/sys/crypto/fips_enabled" error() { NONL="" if [ "$1" == "-n" ]; then NONL="-n" shift fi echo $NONL "$@" >&2 } cleanup_and_exit () { rm -rf $MNTIMAGE rm -f $IMAGE rm -f $TMPDISKLIST exit $1 } strip_comments() { echo $@ | sed -e 's/\(.*\)#.*/\1/' } function make_trace_mem() { # parameters: msg [trace_level:trace]... msg=$1 shift if [ "$DEBUG_MEM_LEVEL" -gt 0 ]; then make_trace show_memstats $DEBUG_MEM_LEVEL "[debug_mem]" "$msg" "$@" fi } function make_trace() { # parameters: func log_level prefix msg [trace_level:trace]... func=$1 shift log_level=`echo "$1" | grep -o '^[0-9]\+'` shift prefix=$1 shift msg=$1 shift if [ -z "$log_level" ]; then return fi # deal with indentation space_at_front=`echo "$msg" | grep -o "^[[:space:]]\+"` msg=`echo "$msg" | sed 's/^\s\+//'` msg_printed=0 while [ $# -gt 0 ]; do trace_level=`echo "$1" | grep -o '^[0-9]\+'` trace_in_higher_levels=`echo "$1" | grep -o '+'` trace=`echo $1 | sed "s/^.*://"` if [ -z "$trace_level" ]; then trace_level=0 fi insert_trace=0 if [ -n "$trace_in_higher_levels" ]; then if [ "$log_level" -ge "$trace_level" ]; then insert_trace=1 fi else if [ "$log_level" -eq "$trace_level" ]; then insert_trace=1 fi fi if [ $insert_trace -eq 1 ]; then if [ $msg_printed -eq 0 ]; then emit "${space_at_front}echo \"$prefix $msg\"" msg_printed=1 fi emit "${space_at_front}$func $trace" fi shift done } if [ -z "$TMPDIR" ] then for t in /tmp /var/tmp /root ${PWD}; do if [ ! -w $t ]; then continue; fi TMPDIR=$t break done else if [ ! -w "$TMPDIR" ] then error "Can't write to $TMPDIR." exit 1 fi fi if [ -z "$TMPDIR" ]; then error "No temporary directory could be found." exit 1 fi if [ $TMPDIR = "/root" -o $TMPDIR = "${PWD}" ]; then error "WARNING: using $TMPDIR for temporary files" fi #for other commands below, like 'mount' export TMPDIR TMPDISKLIST="" MNTIMAGE=`mktemp -d ${TMPDIR}/initrd.XXXXXX` IMAGE=`mktemp ${TMPDIR}/initrd.img.XXXXXX` RCFILE=$MNTIMAGE/init vecho() { NONL="" if [ "$1" == "-n" ]; then NONL="-n" shift fi [ -n "$verbose" ] && echo $NONL "$@" } usage () { if [ "$1" == "-n" ]; then cmd=echo else cmd=error fi $cmd "usage: $cmdname [--version] [--help] [-v] [-d] [-f] [--preload ]" $cmd " [--image-version]" $cmd " [--builtin=] [--omit-dmraid]" $cmd " [--fstab=] [--nocompress] " $cmd "" $cmd " (ex: $cmdname /boot/initrd-2.2.5-15.img 2.2.5-15)" if [ "$1" == "-n" ]; then exit 0 else cleanup_and_exit 1 fi } moduledep() { deps="" for i in `modprobe --set-version $kernel --show-depends $1 2>/dev/null | awk '/^insmod/ {print $2}'` do modname=`basename $i | sed -e's/\.ko//'` if [ "$modname" == "$1" ] then continue fi deps="$deps $modname" done [ -n "$deps" ] && vecho ":$deps" || vecho } findone() { find "$@" | /bin/awk '{print $1; exit}' } findall() { find "$@" } find_dm_in_sysblock() { local devnode=$1 local majmin local device [ ! -b "$devnode" ] && return 1; majmin=$(get_numeric_dev dec $devnode) [ -z "$majmin" ] && return 1 find -L /sys/block -maxdepth 2 -name dev | while read device ; do \ echo "$majmin" | cmp -s $device && echo $device ; done \ | sed -e 's,/dev$,,' } is_mpath() { local major local minor local target major=$(echo $1 | cut -d: -f1) minor=$(echo $1 | cut -d: -f2) for target in $(dmsetup -C -j $major -m $minor table 2>/dev/null | \ grep -v "No devices found" | awk ' { print $3 }') ; do [ "$target" == "multipath" ] && return 0 done return 1 } find_mpath_deps() { local devpath="/dev/$(echo $1 | sed -e 's,.*/\([^/]\+\),\1,' )" local syspath="/sys/block/$(echo $1 | sed -e 's,.*/\([^/]\+\),\1,' )" local arg2="$2" local majmin=$(cat $syspath/dev) local ret=1 if is_mpath ${majmin} ; then arg2=yes fi slaves="$syspath/slaves/*" for slave in $slaves ; do [ -e $slave ] || continue find_mpath_deps $(readlink $slave) ${arg2} && ret=0 done if [ "$2" == "yes" ]; then echo $devpath fi return $ret } dm_get_uuid() { dmsetup info "$1" | awk '/^.*UUID.*/ {print $2}' } depsolve_modlist() { local TMPINMODS=$MODULES local TMPOUTMODS="" local i local j local mname local dpcnt local scnt # # So, basically, we just do this until TMPINMODS # is an empty list # while [ -n "$TMPINMODS" ] do for i in $TMPINMODS do mname=`basename $i | sed -e's/\.ko//'` dpcnt=`modprobe --set-version $kernel --show-depends $mname 2>/dev/null | awk '/^insmod/ {print $2}' | wc -l` if [ $dpcnt -le 1 ] then # we have no dependencies, just add it to the list echo "$TMPOUTMODS" | grep -q $i if [ $? -ne 0 ] then TMPOUTMODS="$TMPOUTMODS $i" fi continue fi # We should start this counter at 1, since we expect that the last # line output by modprobe --show-depends will be the module we # specify as mname below, but since modprobe is busted and # sometimes doesn't do that, we start at zero, and increment an # extra time below if we are searching for a dependency on ourself let scnt=0 for j in `modprobe --set-version $kernel --show-depends $mname 2>/dev/null | awk '/^insmod/ {print $2}'` do echo $TMPOUTMODS | grep -q $j if [ $? -eq 0 ] then let scnt=$scnt+1 fi # here we are looking to see if the insmod line is for the # module that we are searching for dependencies on. We do this # because modprobe is busted in its show-depends line echo $j | grep -q $i if [ $? -eq 0 ] then let scnt=$scnt+1 fi done if [ "$scnt" == "$dpcnt" ] then echo "$TMPOUTMODS" | grep -q $i if [ $? -ne 0 ] then TMPOUTMODS="$TMPOUTMODS $i" fi fi #Finish for i loop done for j in $TMPOUTMODS do TMPTMPMODS="" for z in $TMPINMODS do if [ "$j" == "$z" ] then continue fi TMPTMPMODS="$TMPTMPMODS $z" done TMPINMODS=$TMPTMPMODS done done MODULES=$TMPOUTMODS } findmodule() { local skiperrors="" local mod_found=0 local deps if [ $1 == "--skiperrors" ]; then skiperrors=--skiperrors shift fi local modName=$1 if [ "$modName" = "off" -o "$modName" = "null" ]; then return fi if [ $(echo $modName | cut -b1) = "-" ]; then skiperrors=--skiperrors modName=$(echo $modName | cut -b2-) fi case "$MODULES " in *"/$modName.ko "*) return ;; esac if echo $builtins | egrep -q '(^| )'$modName'( |$)' ; then vecho "module $modName assumed to be built in" return fi # special cases case "$modName" in raid[456]) modName=raid456 ;; esac if [ "$modName" = "i2o_block" ]; then findmodule i2o_core findmodule -i2o_pci modName="i2o_block" elif [ "$modName" = "ppa" ]; then findmodule parport findmodule parport_pc modName="ppa" elif [ "$modName" = "sbp2" ]; then findmodule ieee1394 findmodule ohci1394 modName="sbp2" else moduledep $modName for i in $deps; do findmodule $i done fi fmPath=$(modprobe --set-version $kernel -l $modName 2>/dev/null) if [ ! -f "/lib/modules/$kernel/$fmPath" ]; then for modDir in /lib/modules/$kernel/updates /lib/modules/$kernel do if [ -d $modDir ] then fmPath=$(findone $modDir -name $modName.ko) if [ -f "$fmPath" ] then fmPath=${fmPath#/lib/modules/$kernel/} mod_found=1 break fi fi done else mod_found=1 fi if [ $mod_found -eq 0 ]; then if [ -n "$skiperrors" ]; then return fi # ignore the absence of the scsi modules for n in $PRESCSIMODS; do if [ "$n" = "$modName" ]; then return; fi done; if [ -n "$allowmissing" ]; then error "WARNING: No module $modName found for kernel $kernel, continuing anyway" return fi error "No module $modName found for kernel $kernel, aborting." cleanup_and_exit 1 fi # only need to add each module once MODULES="$MODULES /lib/modules/$kernel/$fmPath" # need to handle prescsimods here -- they need to go _after_ scsi_mod if [ "$modName" = "scsi_mod" ]; then for n in $PRESCSIMODS ; do findmodule $n done fi } find_scsi_dh_modules() { local scsipath=$(modprobe --set-version $kernel --show-depends sg 2>/dev/null | awk '/^insmod / { print $2; }' | tail -1) scsipath="${scsipath%%sg.ko}device_handler/" [ -d "$scsipath" ] || return for x in $scsipath/*.ko ; do local h=${x##*/} findmodule -${h%%.ko} done } inst() { if [ "$#" != "2" ];then echo "usage: inst " return fi vecho "$1 -> $2" cp $1 $2 } handle_multipath () { local sysdev local deps local device=$1 case " $multipath_devices " in *" $device "*) return ;; *) multipath_devices="$multipath_devices $device" ;; esac findmodule -dm-mod findmodule -dm-mirror findmodule -dm-zero findmodule -dm-snapshot find_scsi_dh_modules findmodule -dm-multipath findmodule -dm-round-robin sysdev=$(find_dm_in_sysblock /dev/$device) deps=$(find_mpath_deps ${sysdev}) vecho -n "multipath components of $device are " for dep in ${deps}; do vecho -n "$dep " done vecho for dep in ${deps}; do findstoragedriver ${dep##/dev/} done } resolve_dm() { # resolve device mapper nodes to something of the form /dev/mapper/foo if [[ ! "$1" =~ ^dm- ]]; then echo $1 return 0 fi majmin=$(cat /sys/block/$1/dev) for dmdev in /dev/mapper/* ; do dmnum=$(get_numeric_dev dec $dmdev) if [ "$dmnum" = "$majmin" ]; then echo ${dmdev#/dev/} break fi done } handledm () { local major=$1 local minor=$2 local origdevice=$3 # Check if it is a multipath device if is_mpath "$major:$minor"; then vecho "Found dm-multipath component $origdevice" handle_multipath ${origdevice} return 0; fi while read dmstart dmend dmtype r0 r1 r2 r3 r4 r5 r6 r7 r8 r9 ; do case "$dmtype" in linear) slavedev=$(find -L /sys/block -maxdepth 2 -name dev \ | while read device ; do \ echo "$r0" \ | cmp -s $device && echo $device ; \ done \ | sed -e 's,.*/\([^/]\+\)/dev,\1,;s,!,/,' ) slavedev=$(resolve_dm ${slavedev##/dev/}) vecho "$device device is linear, slave is $slavedev" handlelvordev "/dev/$slavedev" ;; esac done << EOF $(dmsetup table -j $major -m $minor 2>/dev/null) EOF } findstoragedriverinsys () { while [ ! -L device ]; do [ "$PWD" = "/sys" ] && return cd .. done cd $(readlink ./device) if is_iscsi $PWD; then handleiscsi "$PWD" fi while [ ! -f modalias ]; do [ "$PWD" = "/sys/devices" ] && return cd .. done modalias=$(cat modalias) for driver in $(modprobe --set-version $kernel --show-depends $modalias 2>/dev/null| awk '/^insmod/ { print gensub(".*/","","g",$2) }') ; do findmodule ${driver%%.ko} done } get_part_sep() { local basedev=$1 sep [ -z "$basedev" ] && return if `echo $basedev | egrep -q '^cciss|^ida|^nvme'`; then sep='p' fi echo $sep } get_basedev() { local basedev sep basedev=$(echo $1 | sed -e's/\/dev\///' -e's/[0-9]\+$//') sep=$(get_part_sep $basedev) if [ -n "$sep" ] && [ "$basedev" != "$1" ]; then basedev=${basedev%$sep} fi echo $basedev } identify_critical_disk_by_vendor_model_type() { local i local a local TMPNAME local DSKSTRING local found local IDSTRING local basedev=$1 [ -z "$TMPDISKLIST" ] && TMPDISKLIST=`mktemp ${TMPDIR}/disklist.XXXXXX` if [ -d /sys/block/$basedev ] then TMPNAME="" DSKSTRING="" #only add devices which have a presence in sysfs for i in "vendor" "model" "type" do TMPNAME=`cat /sys/block/$basedev/device/$i 2>/dev/null` DSKSTRING="$DSKSTRING $TMPNAME" done DSKSTRING=$(echo $DSKSTRING | sed -e's/ //g') if grep -q "$DSKSTRING" "$TMPDISKLIST" then found=`awk '{ if($2 == "'"$DSKSTRING"'") print $3; }' $TMPDISKLIST` echo -n "$basedev $DSKSTRING" > $TMPDISKLIST else found=0 echo -n "$basedev $DSKSTRING" >> $TMPDISKLIST fi for i in `ls /sys/block` do IDSTRING="" if [ ! -d /sys/block/$i/device ] then continue fi for a in "vendor" "model" "type" do TMPNAME=`cat /sys/block/$i/device/$a 2>/dev/null` IDSTRING="$IDSTRING $TMPNAME" done IDSTRING=$(echo $IDSTRING | sed -e's/ //g') if [ "$DSKSTRING" == "$IDSTRING" ] then found=$(($found + 1)) fi done echo " $found">>$TMPDISKLIST fi } identify_critical_disk_by_scsi_id() { local scsi_id="" scsi_id=$(/lib/udev/scsi_id --whitelisted --device=/dev/$1 --replace-whitespace) if ! grep -q "$scsi_id" $MNTIMAGE/etc/critical_scsi_ids 2>/dev/null; then echo "$scsi_id" >> $MNTIMAGE/etc/critical_scsi_ids fi } is_virtio_disk_with_serial() { [[ $(readlink /sys/block/$1) =~ virtio ]] && \ [ -n "$(cat /sys/block/$1/serial 2>/dev/null)" ] } identify_critical_disk_by_virtio_serial() { local serial serial=$(cat /sys/block/$1/serial 2>/dev/null) if ! grep -q "$serial" $MNTIMAGE/etc/virtio_ids 2>/dev/null; then echo "$serial" >> $MNTIMAGE/etc/virtio_ids fi } # Check for a Storage Class Memory (SCM) device (s390 only). is_scm() { # /sys/block/scma -> ../devices/scm/0000000000000000/block/scma if [[ $(readlink /sys/block/$1) =~ /scm/[0-9a-f][0-9a-f]*/ ]]; then return 0 else return 1 fi } identify_critical_disk_by_scmid() { local scm_id # /sys/block/scma/device -> ../../../0000000000000000/ scm_id=$(basename $(readlink /sys/block/$1/device)) if ! grep -q "$scm_id" $MNTIMAGE/etc/scm_ids 2>/dev/null; then echo "$scm_id" >> $MNTIMAGE/etc/scm_ids fi } # Check for DASD device (s390 only) is_dasd() { # /sys/block/dasda -> ../devices/css0/0.0.000c/0.0.23b5/block/dasda if [[ $1 =~ dasd ]] && [[ $(readlink /sys/block/$1) =~ /css.*/ ]]; then return 0 else return 1 fi } identify_critical_disk_by_dasd_bus_id() { local dasd_bus_id dasd_bus_id=$(basename $(readlink /sys/block/$1/device)) if ! grep -q "$dasd_bus_id" $MNTIMAGE/etc/dasd_bus_ids 2>/dev/null; then echo "$dasd_bus_id" >> $MNTIMAGE/etc/dasd_bus_ids fi } #$1: device name: /dev/devname #other logic to find critical disks should go to this function identify_critical_disk() { local basedev=$(get_basedev $1) local scsiid # don't block on cciss devices, parsing them in sysfs takes a special # case and there might be some other old reason for this which are not # clear. Also don't block on md/dm devices because we only need waiting # for their children devices, and md/dm devices will be setup in later code. if echo $basedev|egrep -s -q '(^cciss|^md|^dm|^mapper\/)'; then return fi scsiid=$(/lib/udev/scsi_id --whitelisted /dev/$basedev --replace-whitespace) #do not use scsi_id for qemu ide disks because the ids are not persistent. if [ -n "$scsiid" ] && [ "$scsiid" = "${scsiid/QEMU_HARDDISK/}" ]; then identify_critical_disk_by_scsi_id $basedev elif is_virtio_disk_with_serial $basedev; then identify_critical_disk_by_virtio_serial $basedev elif is_scm $basedev; then identify_critical_disk_by_scmid $basedev elif is_dasd $basedev; then identify_critical_disk_by_dasd_bus_id $basedev else identify_critical_disk_by_vendor_model_type $basedev fi } findstoragedriver () { local majmin local device local sysfs for device in $@ ; do identify_critical_disk $device case " $handleddevices " in *" $device "*) continue ;; *) handleddevices="$handleddevices $device" ;; esac grep -q "$device" /proc/mdstat if [ $? == 0 ]; then vecho "Found RAID component $device" handleraid "$device" continue fi if [[ "$device" =~ ^(dm-|mapper/|mpath/) ]]; then device=$(resolve_dm $device) vecho "Found DM device $device" majmin=$(get_numeric_dev dec "/dev/$device") sysfs=$(find_dm_in_sysblock /dev/$device) handledm $(echo "$majmin" |cut -d : -f 1) $(echo "$majmin" |cut -d : -f 2) ${device} continue; fi device=`echo $device | sed 's/\//\!/g'` sysfs=$(findone -L /sys/block -maxdepth 2 -type d -name $device) [ -z "$sysfs" ] && return pushd $sysfs >/dev/null 2>&1 findstoragedriverinsys popd >/dev/null 2>&1 done } kdump_is_bridge() { [ -d /sys/class/net/"$1"/bridge ] } kdump_is_bond() { [ -d /sys/class/net/"$1"/bonding ] } kdump_is_vlan() { [ -f /proc/net/vlan/"$1" ] } findnetdriver() { for device in $@ ; do case " $handleddevices " in *" $device "*) continue ;; *) handleddevices="$handleddevices $device" ;; esac if kdump_is_vlan "$device"; then modalias=8021q elif kdump_is_bond "$device"; then modalias=bonding elif kdump_is_bridge "$device"; then modalias=bridge elif [ -f /sys/class/net/$device/device/modalias ]; then modalias=$(cat /sys/class/net/$device/device/modalias) else modalias=$(ethtool -i $device | awk '/^driver:/ { print $2 }') fi for driver in $(modprobe --set-version $kernel --show-depends $modalias 2>/dev/null| awk '/^insmod/ { print gensub(".*/","","g",$2) }') ; do if [ "$driver" = "mlx4_core.ko" ]; then extra_kdump_mods="$extra_kdump_mods mlx4_core" fi findmodule ${driver%%.ko} done done } iscsi_get_rec_val() { # The open-iscsi 742 release changed to using flat files in # /var/lib/iscsi. result=$(/sbin/iscsiadm --show -m session -r ${1} | grep "^${2} = ") result=${result##* = } } # No ibft handling yet. iscsi_set_parameters() { path=$1 vecho "setting iscsi parameters" # Check once before getting explicit values, so we can output a decent # error message. if ! /sbin/iscsiadm -m session -r ${path} >/dev/null ; then echo "Unable to find iscsi record for $path" exit 1 fi iscsi_get_rec_val $path "node.name"; tgt_name=${result} iscsi_get_rec_val $path "node.conn\[0\].address"; tgt_ipaddr=${result} } is_iscsi() { path=$1 if echo $path | grep -q "/platform/host[0-9]*/session[0-9]*/target[0-9]*:[0-9]*:[0-9]*/[0-9]*:[0-9]*:[0-9]*:[0-9]*"; then return 0 else return 1 fi } # Taken from mkinitrd. Trimmed for bare minimum functionality. handleiscsi() { vecho "Found iscsi component $1" for idev in $ISCSI_DEVICES; do # try to avoid any duplication of a target if [ "${idev%/*}" == "${1%/*}" ]; then vecho "Already have ${1%/*}... skipping." return fi done findmodule iscsi_tcp findmodule sd_mod iscsi_set_parameters $1 netdev=$(/sbin/ip route get to $tgt_ipaddr | \ sed 's|.*dev \(.*\).*|\1|g' | awk '{ print $1; exit }') mkdir -p $MNTIMAGE/etc/network/ handlenetdev $netdev echo $netdev >> $MNTIMAGE/etc/iface_to_activate ISCSI_DEVICES="$ISCSI_DEVICES $1" vecho "iscsi component target is $tgt_name" ISCSI_TARGETS="$ISCSI_TARGETS $tgt_name" } handleraid() { local start=0 if [ -n "$noraid" -o ! -f /proc/mdstat ]; then return 0 fi levels=$(grep "^$1[ ]*:" /proc/mdstat | \ awk '{ print $4 }') devs=$(grep "^$1[ ]*:" /proc/mdstat | \ awk '{ print gensub("\\[[0-9]*\\]","","g",gensub("^md.*raid[0-9]*","","1")) }') for level in $levels ; do case $level in linear) findmodule linear start=1 ;; multipath) findmodule multipath start=1 ;; raid[01456] | raid10) findmodule $level start=1 ;; *) error "raid level $level (in /proc/mdstat) not recognized" ;; esac done findstoragedriver $devs if [ "$start" = 1 ]; then raiddevices="$raiddevices $1" fi return $start } check_encrypted() { [ -f /etc/crypttab ] || return 0 local dev=$1 if lsblk -d -n -o TYPE "$dev" 2>/dev/null | grep -q crypt; then error "Device $dev is encrypted, can not be used in kdump" cleanup_and_exit 1 fi return 0 } check_resettable() { local path="/sys/$(udevadm info --query=all --name="$1" | awk '/^P:/ {print $2}' | sed -e 's/\(cciss[0-9]\+\/\).*/\1/g' -e 's/\/block\/.*$//')/resettable" local resettable=1 if [ ! -f "$path" ] then return else resettable="$(cat $path)" fi if [ $resettable -eq 0 ] then if [ "$2" -eq 0 ] then error "Can not save vmcore to target device $1. This device can not be initialized in kdump kernel as it is not resettable" else error "Rootfs device $1 is not resettable, can not be used as the default target, please specify a default action" fi if [ "$override_resettable" -eq 0 ] then cleanup_and_exit 1 fi fi } get_devname_from_uuid_label() { local device="$1" local IS_UUID IS_LABEL IS_UUID=$(echo $device | grep UUID) IS_LABEL=$(echo $device | grep LABEL) if [ -n "$IS_UUID" -o -n "$IS_LABEL" ]; then device=$(findfs $device) if [ $? -ne 0 ]; then echo "find device name failed for $device" cleanup_and_exit 1 fi fi echo $device } handlelvordev() { local dev=$(get_devname_from_uuid_label $1) check_encrypted "$dev" local vg=`lvs --noheadings -o vg_name $dev 2>/dev/null` if [ -z "$vg" ]; then vg=`lvs --noheadings -o vg_name $(echo $dev | sed -e 's#^/dev/mapper/\([^-]*\)-\(.*\)$#/dev/\1/\2#') 2>/dev/null` fi if [ -n "$vg" ]; then vg=`echo $vg` # strip whitespace case " $vg_list " in *" $vg "*) ;; *) vg_list="$vg_list $vg" for device in `vgdisplay -v $vg 2>/dev/null | sed -n 's/PV Name//p'`; do check_resettable "$device" "$2" check_encrypted "$device" findstoragedriver ${device##/dev/} done ;; esac else check_resettable "$dev" "$2" findstoragedriver ${dev##/dev/} fi } get_routes() { local dev="$1" local routes=`/sbin/ip route show | grep "^[[:digit:]].*via.* $dev "` if [ -z "$GATEWAY" ] then GATEWAY=`/sbin/ip route show | awk '/^default/ {print $3}'` fi if [ -n "$GATEWAY" ] then echo " " gateway $GATEWAY >> $MNTIMAGE/etc/network/interfaces fi if [ -n "$routes" ] then /sbin/ip route show | grep "^[[:digit:]].*via.* $dev " \ >> $MNTIMAGE/etc/network/route-static fi } find_ifcfg_by_devicename() { local dev=$1 if [ -f /etc/sysconfig/network-scripts/ifcfg-$dev ] then echo /etc/sysconfig/network-scripts/ifcfg-$dev return fi for file in `ls /etc/sysconfig/network-scripts/ifcfg-*` do if grep -q -E "^[^#]*(DEVICE|device).*$dev" $file then echo $file return fi done } handlenetdev() { local dev=$1 local ifcfg_file case " $handlednetdevices " in *" $dev "*) return ;; *) handlednetdevices="$handlednetdevices $dev" ;; esac ifcfg_file=`find_ifcfg_by_devicename $dev` if [ -z "${ifcfg_file}" ]; then error "The ifcfg-$dev or ifcfg-xxx which contains DEVICE=$dev field doesn't exist." cleanup_and_exit 1 fi cp ${ifcfg_file} $MNTIMAGE/etc/ifcfg-$dev BOOTPROTO="" VLAN="" MASTER="" SLAVE="" IPADDR="" . $MNTIMAGE/etc/ifcfg-$dev findnetdriver $dev if [ "$BOOTPROTO" == "dhcp" ] then if ! grep -q "iface $dev inet dhcp" $MNTIMAGE/etc/network/interfaces 2>/dev/null then echo "iface $dev inet dhcp" >> $MNTIMAGE/etc/network/interfaces fi elif [ -n "$IPADDR" ] then if ! grep -q "iface $dev inet static" $MNTIMAGE/etc/network/interfaces 2>/dev/null then echo "iface $dev inet static" >> $MNTIMAGE/etc/network/interfaces fi echo " " address $IPADDR >> $MNTIMAGE/etc/network/interfaces if [ -n "$NETMASK" ] && [ -n "$PREFIX" ] then echo "Warning: both NETMASK and PREFIX exist, mkdumprd is confused" fi if [ -n "$NETMASK" ] then echo " " netmask $NETMASK >> $MNTIMAGE/etc/network/interfaces elif [ -n "$PREFIX" ] then echo " " netmask $(ipcalc -m 127.0.0.1/$PREFIX | cut -d'=' -f2) >> $MNTIMAGE/etc/network/interfaces sed -i -e "s/PREFIX=.*/NETMASK=$(ipcalc -m 127.0.0.1/$PREFIX | cut -d'=' -f2)/" $MNTIMAGE/etc/ifcfg-$dev fi get_routes $dev cp -a /etc/resolv.conf $MNTIMAGE/etc else echo iface $dev inet static >> $MNTIMAGE/etc/network/interfaces echo " " address 0.0.0.0 >> $MNTIMAGE/etc/network/interfaces echo " " netmask 0.0.0.0 >> $MNTIMAGE/etc/network/interfaces echo " " bnmask 0 >> $MNTIMAGE/etc/network/interfaces fi #This lets us recursively handle stacked devices if kdump_is_vlan "$dev" then if [ "$VLAN" == "yes" ] then echo >> $MNTIMAGE/etc/ifcfg-$dev echo "BUS_ID=\"Vlan\"" >> $MNTIMAGE/etc/ifcfg-$dev BASE_IFC=`awk '/^Device:/ {print $2}' /proc/net/vlan/$dev` handlenetdev $BASE_IFC fi elif kdump_is_bond "$dev" then #This is a bond, pick up its slaves for j in `cat /sys/class/net/$dev/bonding/slaves` do handlenetdev $j done echo >> $MNTIMAGE/etc/ifcfg-$dev echo "BUS_ID=\"Bonding\"" >> $MNTIMAGE/etc/ifcfg-$dev elif kdump_is_bridge "$dev" then for j in `ls /sys/class/net/$dev/brif` do #Ignore unsupported logical interface(/sys/class/net/$j/device/ doesn't exist) #members, the bridge can still work as long as any real interface member available. #We need to handle bond and vlan logical interfaces which were originally supported. if [ -d /sys/class/net/$j/device ] || kdump_is_bond "$j" || kdump_is_vlan "$j"; then handlenetdev $j fi done echo >> $MNTIMAGE/etc/ifcfg-$dev echo "BUS_ID=\"Bridge\"" >> $MNTIMAGE/etc/ifcfg-$dev else if [ "$VLAN" == "yes" ] then echo >> $MNTIMAGE/etc/ifcfg-$dev echo "BUS_ID=\"Vlan\"" >> $MNTIMAGE/etc/ifcfg-$dev BASE_IFC=`awk '/^Device:/ {print $2}' /proc/net/vlan/$dev` handlenetdev $BASE_IFC else BUS_ID=`ls -l /sys/class/net/$dev/device | sed -e's/\(.*\/\)\(.*$\)/\2/'` echo >> $MNTIMAGE/etc/ifcfg-$dev echo "BUS_ID=\"$BUS_ID\"" >> $MNTIMAGE/etc/ifcfg-$dev #DEV_ID is used for physical interfaces to distinguish different ports of the shared #multiport card(thus of the same BUS_ID). Please see the logic in map_interface. DEV_ID=`cat /sys/class/net/$dev/dev_id` echo "DEV_ID=\"$DEV_ID\"" >> $MNTIMAGE/etc/ifcfg-$dev fi fi } arch_netdev_init() { if [ "$ARCH" = "s390x" ]; then if [ -e /sys/bus/ccw ]; then install_ccw_net_init emit "for i in \`ls /etc/ifcfg-* 2>/dev/null\`; do" emit " ccw_net_init \$i" emit "done" else error "/sys/bus/ccw is required to set up net devices" cleanup_and_exit 1 fi fi } while [ $# -gt 0 ]; do case $1 in --fstab*) if echo $1 | grep -q '=' ; then fstab=`echo $1 | sed 's/^--fstab=//'` else fstab=$2 shift fi ;; --with-usb) withusb=yes ;; --without-usb) withusb=no ;; --with*) if echo $1 | grep -q '=' ; then modname=`echo $1 | sed 's/^--with=//'` else modname=$2 shift fi basicmodules="$basicmodules $modname" ;; --builtin*) if echo $1 | grep -q '=' ; then modname=`echo $1 | sed 's/^--builtin=//'` else modname=$2 shift fi builtins="$builtins $modname" ;; --version) echo "$cmdname: version $VERSION" exit 0 ;; -v) verbose=-v ;; --nocompress) compress="" ;; --ifneeded) # legacy ;; -f) force=1 ;; -d) KDUMP_CONFIG_FILE="" if [ -f /etc/kdump.conf ]; then KDUMP_CONFIG_FILE="/etc/kdump.conf" fi ;; --preload*) if echo $1 | grep -q '=' ; then modname=`echo $1 | sed 's/^--preload=//'` else modname=$2 shift fi PREMODS="$PREMODS $modname" ;; --force-scsi-probe) forcescsi=1 ;; --omit-scsi-modules) PRESCSIMODS="" noscsi=1 ;; --force-raid-probe) forceraid=1 ;; --omit-raid-modules) noraid=1 ;; --force-lvm-probe) forcelvm=1 ;; --omit-lvm-modules) nolvm=1 ;; --omit-dmraid) nodmraid=1 ;; --force-ide-probe) forceide=1 ;; --image-version) img_vers=yes ;; --allow-missing) allowmissing=yes ;; --noresume) noresume=1 ;; --override-resettable) override_resettable=1 ;; --help) usage -n ;; *) if [ -z "$target" ]; then target=$1 elif [ -z "$kernel" ]; then kernel=$1 else usage fi ;; esac shift done if [ -z "$target" -o -z "$kernel" ]; then usage fi if [ -n "$img_vers" ]; then target="$target-$kernel" fi if [ -z "$force" -a -f $target ]; then error "$target already exists." cleanup_and_exit 1 fi if [ -n "$forcescsi" -a -n "$noscsi" ]; then error "Can't both force scsi probe and omit scsi modules" cleanup_and_exit 1 fi if [ -n "$forceraid" -a -n "$noraid" ]; then error "Can't both force raid probe and omit raid modules" cleanup_and_exit 1 fi if [ -n "$forcelvm" -a -n "$nolvm" ]; then error "Can't both force LVM probe and omit LVM modules" cleanup_and_exit 1 fi if [ ! -d /lib/modules/$kernel ]; then error 'No modules available for kernel "'${kernel}'".' cleanup_and_exit 1 fi if [ $UID != 0 ]; then error "$cmdname must be run as root." cleanup_and_exit 1 fi vecho "Creating initramfs" modulefile=/etc/modprobe.conf if [ ! -f $modulefile ] ;then if [ -d /etc/modprobe.d -a -n "$(ls -A /etc/modprobe.d)" ] ; then modulefile="$(echo /etc/modprobe.d/*.conf)" else modulefile="" fi fi which bmc-watchdog &> /dev/null && bmc-watchdog -g 2>/dev/null | grep Running &> /dev/null && findmodule ipmi_watchdog for n in $PREMODS; do findmodule $n done [ ! -d $MNTIMAGE/var/lib ] && mkdir -p $MNTIMAGE/var/lib inst /var/lib/random-seed $MNTIMAGE/var/lib/random-seed 2>/dev/null || { error "Saving random seed failed." cleanup_and_exit 1 } needusb="" if [ -n "$withusb" -a "x$PROBE" == "xyes" ]; then # If / or /boot is on a USB device include the driver. With root by # label we could still get some odd behaviors for fs in / /boot ; do esc=$(echo $fs | sed 's,/,\\/,g') dev=$(mount | awk "/ on ${esc} / { print \$1 }" | sed 's/[0-9]*$//' | cut -d/ -f3) if [ "$(echo $dev | cut -c1-2)" = sd ]; then if [ `which kudzu 2>/dev/null` ]; then host=$(kudzu --probe -b scsi | gawk '/^device: '${dev}'/,/^host:/ { if (/^host/) { print $2; exit; } }') if [ -d /proc/scsi/usb-storage-${host} -o -f /proc/scsi/usb-storage/${host} ]; then needusb=1 fi fi fi done fi # for USB keyboard if [ -z "$needusb" -a -n "$withusb" -a "x$PROBE" == "xyes" ]; then for inputdev in $(ls -d /sys/class/input/input* 2>/dev/null); do if [ ! -e ${inputdev}/mouse* ]; then if [ "$(cat ${inputdev}/phys | cut -c1-3)" = usb ]; then needusb=1 fi fi done fi if [ -n "$needusb" -a "x$PROBE" == "xyes" -a -n "$modulefile" ]; then drivers=$(awk '/^alias[[:space:]]+usb-controller[0-9]* / { print $3}' $modulefile) useUSB=0 if [ -n "$drivers" ]; then useUSB=1 for driver in $drivers; do findmodule $driver done fi for x in $(awk '/^[eou]hci_hcd/ {print $1}' /proc/modules | sed '1!G;h;$!d') ; do useUSB=1 findmodule $(echo $x | sed 's/_/-/') done if [ "$useUSB" == "1" ]; then findmodule scsi_mod findmodule sd_mod fi fi if [ -n "$forcescsi" -o -z "$noscsi" -a "x$PROBE" == "xyes" ]; then if [ -n "$modulefile" ]; then scsimodules=`grep "alias[[:space:]]\+scsi_hostadapter" $modulefile | grep -v '^[ ]*#' | LC_ALL=C sort -u | awk '{ print $3 }'` if [ -n "$scsimodules" ]; then for n in $scsimodules; do # for now allow scsi modules to come from anywhere. There are some # RAID controllers with drivers in block/ findmodule $n done fi fi fi # If we have ide devices and module ide, do the right thing ide=/proc/ide/ide* if [ -n "$forceide" -o -n "$ide" -a "x$PROBE" == "xyes" ]; then findmodule -ide-disk fi # If we have dasd devices, include the necessary modules (S/390) if [ "x$PROBE" == "xyes" -a -d /proc/dasd ]; then findmodule -dasd_mod findmodule -dasd_eckd_mod findmodule -dasd_fba_mod fi add_rootfs() { if [ "x$PROBE" == "xyes" ]; then rootfs=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $3; }}' $fstab) rootopts=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $4; }}' $fstab) # in case the root filesystem is modular findmodule -${rootfs} rootdev=$(awk '/^[ \t]*[^#]/ { if ($2 == "/") { print $1; }}' $fstab) # check if it's nfsroot if [ "$rootfs" == "nfs" ]; then remote=$(echo $rootdev | cut -d : -f 1) # FIXME: this doesn't handle ips properly remoteip=$(getent ahostsv4 $remote | head -n 1 | cut -d ' ' -f 1) netdev=`/sbin/ip route get to $remoteip |sed 's|.*dev \(.*\).*|\1|g' |awk {'print $1;'} |head -n 1` net_list="$net_list $netdev" # check if it's root by label elif echo $rootdev | cut -c1-6 | grep -q "UUID=\|LABEL=" ; then dev=`/sbin/findfs $rootdev` if [ -n "$dev" ] ; then vecho "Found root device $dev for $rootdev" rootdev=$dev fi else rootopts=$(echo $rootopts | sed -e 's/^r[ow],//' -e 's/,r[ow],$//' -e 's/,r[ow],/,/' \ -e 's/^r[ow]$/defaults/' -e 's/$/,ro/') fi [ "$rootfs" != "nfs" ] && handlelvordev $rootdev 1 fi } # If we use LVM or dm-based raid, include dm-mod # XXX: dm not really supported yet. testdm="" [ -n "$vg_list" ] && testdm="yes" [ -n "$forceraid" -o -n "$forcelvm" ] && testdm="yes" [ -z "$nolvm" -o -z "$noraid" ] && testdm="yes" [ "x$PROBE" != "xyes" ] && testdm="" if [ -n "$testdm" ]; then if [ -x /sbin/dmsetup -a -e /dev/mapper/control ]; then dmout=$(/sbin/dmsetup ls 2>/dev/null) if [ "$dmout" != "No devices found" -a "$dmout" != "" ]; then findmodule -dm-mod # DM requires all of these to be there in case someone used the # feature. broken. (#132001) findmodule -dm-mirror findmodule -dm-zero findmodule -dm-snapshot fi fi if [ -x /sbin/dmraid -a -z "$nodmraid" ]; then NOBLK=`/sbin/dmraid -s -craidname 2>/dev/null | grep "no block devices"` NORAD=`/sbin/dmraid -s -craidname 2>/dev/null | grep "no raid disks"` if [ -z "$NOBLK" ] && [ -z "$NORAD" ] then for raid in $(/sbin/dmraid -s -craidname 2>/dev/null) ; do DMRAIDS="$DMRAIDS $raid" done fi fi fi if [ "$useUSB" == "1" ]; then findmodule usb-storage fi for n in $basicmodules; do findmodule $n done for n in $CONFMODS; do findmodule $n done vecho "Using modules:$MODULES" cemit() { cat >> $RCFILE } emit() { NONL="" if [ "$1" == "-n" ]; then NONL="-n" shift fi echo $NONL "$@" >> $RCFILE } kdump_chk() { rc=`eval $1` && return $rc echo "$KDUMP_CONFIG_FILE: $2" cleanup_and_exit 1 } # Tests if fence_kdump is configured in Pacemaker cluster. is_pcs_fence_kdump() { [ -x /usr/sbin/fence_kdump_send ] || return 1 [ -f "$CLUSTER_CONFIG_FILE" ] || return 1 } # Returns list of nodes defined in Pacemaker cluster. get_pcs_cluster_nodes() { echo "xpath /cluster/clusternodes/clusternode/@name" \ | xmllint --shell $CLUSTER_CONFIG_FILE | grep content | cut -d'=' -f2 } # get_option_value # Retrieves value of option defined in /etc/kdump.conf. get_option_value() { echo $(strip_comments `grep ^$1 $KDUMP_CONFIG_FILE | tail -1 | cut -d\ -f2-`) } # Tests if fence_kdump is configured using options in /etc/kdump.conf. is_generic_fence_kdump() { [ -x /usr/sbin/fence_kdump_send ] || return 1 grep -q "^fence_kdump_nodes" $KDUMP_CONFIG_FILE } # Reads list of cluster nodes, filters local IPs and setups network for them. # Nodes to send fence_kdump notification to are stored in CLUSTER_NODE_LIST. # Other arguments for fence_kdump_send are stored in FENCE_KDUMP_OPTS. setup_cluster_nodes_and_options() { # setup fence_kdump local nodelist="" if is_generic_fence_kdump; then # fence_kdump setup for generic clusters nodelist=$(get_option_value "fence_kdump_nodes") # read fence_kdump_send options and store them to FENCE_KDUMP_OPTS FENCE_KDUMP_OPTS=$(get_option_value "fence_kdump_args") elif is_pcs_fence_kdump; then # fence_kdump setup for Pacemaker clusters nodelist=$(get_pcs_cluster_nodes) # read fence_kdump_send options and store them to FENCE_KDUMP_OPTS if [ -f "$FENCE_KDUMP_CONFIG" ]; then . "$FENCE_KDUMP_CONFIG" fi fi if [ -n "$nodelist" ]; then for node in ${nodelist}; do addr=`getent ahostsv4 $node | head -n 1 | cut -d' ' -f1` netdev=`/sbin/ip route get to $addr 2>&1` if [ -z "$addr" ]; then addr6=`getent ahostsv6 $node | head -n 1 | cut -d' ' -f1` if [ ! -z "$addr6" ]; then error "WARNING: Cluster is using IPv6 for communication, IPv6 is not supported in RHEL6 kdump, system might be fenced while saving vmcore resulting in incomplete vmcore"; else error "WARNING: Unable to find IP of cluster node, system might get fenced while saving vmcore resulting in incomplete vmcore"; fi return 1 fi if echo $netdev | grep -q ^local; then continue fi # add node ip address to node list CLUSTER_NODE_LIST="$CLUSTER_NODE_LIST $addr" if echo $netdev | grep -q via; then netdev=`echo $netdev | awk '{print $5}' | head -n 1` else netdev=`echo $netdev | awk '{print $3}' | head -n 1` fi mkdir -p $MNTIMAGE/etc/network/ handlenetdev $netdev echo $netdev >> $MNTIMAGE/etc/iface_to_activate done if [ -n "$CLUSTER_NODE_LIST" ]; then bin="$bin /usr/sbin/fence_kdump_send" fi fi } if [ -z "$MNTIMAGE" -o -z "$IMAGE" ]; then error "Error creating temporaries. Try again" cleanup_and_exit 1 fi # Just get all the modules that are currently loaded # We're likely to need them for i in `lsmod | tail --lines=+2 | awk '{print $1}'` do findmodule -$i echo $MODULES | grep -q $i if [ $? -ne 0 ] then ALTERNATE=`echo $i | sed -e's/_/-/g'` findmodule $ALTERNATE fi done #START BUILDING INITRD HERE mkdir -p $MNTIMAGE mkdir -p $MNTIMAGE/lib mkdir -p $MNTIMAGE/bin mkdir -p $MNTIMAGE/etc mkdir -p $MNTIMAGE/dev mkdir -p $MNTIMAGE/proc mkdir -p $MNTIMAGE/sys mkdir -p $MNTIMAGE/tmp mkdir -p $MNTIMAGE/sysroot mkdir -p $MNTIMAGE/modules mkdir -p $MNTIMAGE/usr/share/udhcpc mkdir -p $MNTIMAGE/var/run mkdir -p $MNTIMAGE/etc/network/if-pre-up.d mkdir -p $MNTIMAGE/etc/network/if-up.d mkdir -p $MNTIMAGE/etc/network/if-pre-down.d mkdir -p $MNTIMAGE/etc/network/if-down.d mkdir -p $MNTIMAGE/etc/network/if-post-down.d ln -s bin $MNTIMAGE/sbin if [ -n "$KDUMP_CONFIG_FILE" ]; then while read config_opt config_val; do # remove inline comments after the end of a directive. config_val=$(strip_comments $config_val) case "$config_opt" in net|nfs|nfs4|ssh) if [ "$config_opt" = "net" ]; then USE_SSH=`echo $config_val | grep @` if [ -n "$USE_SSH" ]; then USING_METHOD="ssh" else USING_METHOD="nfs" fi else USING_METHOD="$config_opt" fi #grab remote host and xlate into numbers rhost=`echo $config_val | sed 's/.*@//' | cut -d':' -f1` need_dns=`echo $rhost|grep "[a-zA-Z]"` remoteip=$rhost [ -n "$need_dns" ] && remoteip=`getent ahostsv4 $rhost | head -n 1 | cut -d' ' -f1` #find ethernet device used to route to remote host, ie eth0 netdev=`/sbin/ip route get to $remoteip 2>&1` [ $? != 0 ] && echo "Bad kdump location: $config_val" && cleanup_and_exit 1 DUMP_TARGET=$config_val #the field in the ip output changes if we go to another subnet OFF_SUBNET=`echo $netdev | grep via` if [ -n "$OFF_SUBNET" ] then # we are going to a different subnet netdev=`echo $netdev|awk '{print $5;}'|head -n 1` else # we are on the same subnet netdev=`echo $netdev|awk '{print $3}'|head -n 1` fi #add the ethernet device to the list of modules mkdir -p $MNTIMAGE/etc/network/ handlenetdev $netdev echo $netdev >> $MNTIMAGE/etc/iface_to_activate #load nfs modules, if needed echo $config_val | grep -v "@" > /dev/null && findmodule nfs ;; raw) USING_METHOD="raw" DUMP_TARGET=$config_val handlelvordev $config_val 0 ;; core_collector) if [ -x /usr/sbin/makedumpfile ]; then CORE_COLLECTOR=$config_val grep -q control_d /proc/xen/capabilities 2>/dev/null if [ $? -eq 0 ] then if [ ! -e /sys/kernel/vmcoreinfo ] then CORE_COLLECTOR=`echo $CORE_COLLECTOR | sed -e's/makedumpfile/makedumpfile --xen-vmcoreinfo \/etc\/makedumpfile.config/'` fi else if [ ! -e /sys/kernel/vmcoreinfo ] then CORE_COLLECTOR=`echo $CORE_COLLECTOR | sed -e's/makedumpfile/makedumpfile -i \/etc\/makedumpfile.config/'` fi fi else echo "Cannot use the core_collector option on this arch" cleanup_and_exit 1 fi ;; path) SAVE_PATH=$config_val ;; link_delay) LINK_DELAY=$config_val ;; kdump_post) KDUMP_POST=$config_val if [ ! -x "$KDUMP_POST" ]; then echo "$KDUMP_POST not executable or not found" cleanup_and_exit 1 fi bin="$bin $KDUMP_POST" KDUMP_POST_INTERNAL=`echo $KDUMP_POST | sed -e's/\(^.*\/\)\(.*$\)/\/bin\/\2/'` ;; kdump_pre) KDUMP_PRE=$config_val if [ ! -x "$KDUMP_PRE" ]; then echo "$KDUMP_PRE not executable or not found" cleanup_and_exit 1 fi bin="$bin $KDUMP_PRE" KDUMP_PRE_INTERNAL=`echo $KDUMP_PRE | sed -e's/\(^.*\/\)\(.*$\)/\/bin\/\2/'` ;; extra_bins) bin="$bin $config_val" ;; extra_modules) extra_kdump_mods="$extra_kdump_mods $config_val" ;; blacklist) if echo "$config_val" | grep -q "\/" ; then echo "Do not support the directory \"$config_val\" for blacklist" cleanup_and_exit 1 fi blacklist_mods="$blacklist_mods $config_val" ;; options) ;; force_rebuild) ;; default) DEFAULT_ACTION=$config_val case $DEFAULT_ACTION in reboot|shell|mount_root_run_init) FINAL_ACTION="reboot -f" ;; halt) FINAL_ACTION="halt -f" ;; poweroff) FINAL_ACTION="poweroff -f" ;; *) echo "$DEFAULT_ACTION is not a valid default option" cleanup_and_exit 1 ;; esac ;; disk_timeout) DISK_TIMEOUT=$config_val ;; debug_mem_level) DEBUG_MEM_LEVEL=$config_val echo "$DEBUG_MEM_LEVEL" | grep "^[0-3]$" &> /dev/null if [ $? -ne 0 ] then echo "debug_mem_level is valid only for range 0-3" cleanup_and_exit 1 fi ;; sshkey) if [ -f "$config_val" ]; then # canonicalize the path SSH_KEY_LOCATION=$(/usr/bin/readlink -m $config_val) else echo "WARNING: '$config_val' doesn't exist, using default value '$SSH_KEY_LOCATION'" fi ;; Kdump_not_supported_on_Xen_domU_guest) cat << HERE Since RHEL 6.3 there is limited support for kdump on full-virt Xen DomU. This kdump.conf marker may now be removed on supported configurations. See KCS Solution 92943 for more details. HERE ;; fence_kdump_nodes) ;; fence_kdump_args) ;; *) IS_COMMENT=`echo $config_opt | grep "^#.*$"` if [ -n "$IS_COMMENT" -o -z "$config_opt" ] then #don't process comments or blank line continue fi echo $config_opt | egrep -q "ext[234]|xfs|btrfs" if [ $? -ne 0 ]; then echo "Unknown parameter " $config_opt cleanup_and_exit 1 fi USING_METHOD="filesystem" if (echo $config_val | egrep -q "^(LABEL|UUID)="); then # We need to "strip" the quotes in LABEL or UUID, # otherwise it will be passed into findfs as a part of # LABEL or UUID. Note a label name itself may contain # spaces and quotes. config_val=$(eval echo $config_val) if [ -z "$config_val" ] ;then cleanup_and_exit 1 fi fi DUMP_FSTYPE=$config_opt DUMP_TARGET=$config_val handlelvordev $config_val 0 ;; esac done < $KDUMP_CONFIG_FILE fi # Include vmcore-dmesg and associated dependencies. if [ ! -f "$DMESG_COLLECTOR" ];then echo "Error: $DMESG_COLLECTOR is not present" cleanup_and_exit 1 fi bin="$bin $DMESG_COLLECTOR" # If user did not specify a default action, set the defaults. if [ -z "$DEFAULT_ACTION" ];then DEFAULT_ACTION="reboot" FINAL_ACTION="reboot -f" fi # if default is mount root and run init, then add root fs. if [ "$DEFAULT_ACTION" == "mount_root_run_init" ];then add_rootfs fi setup_cluster_nodes_and_options # if no method was specified default to the currently booted filesystem if [ -z "$USING_METHOD" ] then mkdir -p $SAVE_PATH mntpoint=`df $SAVE_PATH | tail -1 | awk '{ print $NF }'` DUMP_TARGET=`mount | awk '$3 == "'$mntpoint'" { print $1 }'` DUMP_UUID=$(blkid -s UUID $DUMP_TARGET|cut -d ' ' -f2|tr -d '\042') [[ "$DUMP_UUID" =~ "UUID=" ]] && DUMP_TARGET="$DUMP_UUID" DUMP_FSTYPE=`mount | awk '$3 == "'$mntpoint'" { print $5 }'` handlelvordev $DUMP_TARGET 0 if [ "$mntpoint" != "/" ] then SAVE_PATH=`echo $SAVE_PATH | sed "s,$mntpoint,,"` fi fi if [ "$DUMP_FSTYPE" = "btrfs" ] then kdump_chk "test -f /sbin/btrfsck" "/sbin/btrfsck not found. Install package btrfs-progs and retry" bin="$bin /sbin/btrfsck" elif [ "$DUMP_FSTYPE" = "xfs" ] then : elif [ -n "$DUMP_FSTYPE" ] then kdump_chk "test -f /sbin/fsck.$DUMP_FSTYPE" "fsck.$DUMP_FSTYPE not found. Install package e2fsprogs and retry." fi [ -n "$DUMP_FSTYPE" ] && findmodule $DUMP_FSTYPE # If there are ISCSI devices found in dump target path, include some associated # files and modules. prepare_iscsi_target () { if [ -n "$ISCSI_DEVICES" ];then kdump_chk "test -f /sbin/iscsiadm" "Can't find /sbin/iscsiadm" bin="$bin /sbin/iscsiadm" kdump_chk "test -f /sbin/iscsid" "Can't find /sbin/iscsid" bin="$bin /sbin/iscsid" # Pack /var/lib/iscsi/* and /etc/iscsi/* mkdir -p $MNTIMAGE/var/lib/iscsi/ cp -r /var/lib/iscsi/* $MNTIMAGE/var/lib/iscsi/ mkdir -p $MNTIMAGE/etc/iscsi/ cp -r /etc/iscsi/* $MNTIMAGE/etc/iscsi/ # iscsiadm does not like it if following does not exist. mkdir -p $MNTIMAGE/var/lock/iscsi/ # Put list of targets in a file mkdir -p $MNTIMAGE/etc/ echo "$ISCSI_TARGETS" | sed 's/^ //'> $MNTIMAGE/etc/iscsi_targets_to_activate vecho "Will activate following targets: `cat $MNTIMAGE/etc/iscsi_targets_to_activate`" fi } prepare_iscsi_target inst_scsi_id() { mkdir -p "$MNTIMAGE/lib/udev" inst /lib/udev/scsi_id "$MNTIMAGE/lib/udev/scsi_id" ln -s "/lib/udev/scsi_id" "$MNTIMAGE/bin/scsi_id" } # If there are dm multipath devices found in dump target path, include some # associated files and modules. prepare_multipath_target () { local tempfile local bindings local libdir local f [ -z "$multipath_devices" ] && return vecho "Prepare multipath related files" kdump_chk "test -f /sbin/multipath" "Can't find /sbin/multipath" bin="$bin /sbin/multipath" vecho "Adding /sbin/multipath" if [ -f /etc/multipath.conf ]; then inst /etc/multipath.conf $MNTIMAGE/etc/multipath.conf fi kdump_chk "test -f /sbin/multipathd" "Can't find /sbin/multipathd" bin="$bin /sbin/multipathd" vecho "Adding /sbin/multipathd" # Pack findfs and blkid also. Busybox findfs is not working well with # multipath devices where it can return a child component device for # a uuid instead of top level multipath device. kdump_chk "test -f /sbin/findfs" "Can't find /sbin/findfs" bin="$bin /sbin/findfs" vecho "Adding /sbin/findfs" kdump_chk "test -f /sbin/blkid" "Can't find /sbin/blkid" bin="$bin /sbin/blkid" vecho "Adding /sbin/blkid" # blkid command can save blkid.tab cache file if this dir is present. # primarily helpful for debugging. mkdir -p $MNTIMAGE/etc/blkid/ mkdir -p $MNTIMAGE/tmp # For kpartx command which creates device maps for disk partitions # and creates device files kdump_chk "test -f /sbin/dmsetup" "Can't find /sbin/dmsetup" bin="$bin /sbin/dmsetup" vecho "Adding /sbin/dmsetup" kdump_chk "test -f /sbin/kpartx" "Can't find /sbin/kpartx" bin="$bin /sbin/kpartx" vecho "Adding /sbin/kpartx" if ldd $(which multipath) 2>/dev/null |grep -q lib64; then libdir="/lib64" else libdir="/lib" fi mkdir -p $MNTIMAGE/$libdir/multipath mkdir -p $MNTIMAGE/etc/multipath mkdir -p $MNTIMAGE/lib/udev # /lib64/multipath/libcheckdirectio.so requires libaio for f in \ /etc/multipath/* \ $(ls $libdir/libaio* 2>/dev/null) \ $(ls $libdir/multipath/* 2>/dev/null); do [ -e "$f" ] && inst "$f" "$MNTIMAGE/$f" done } inst_scsi_id prepare_multipath_target #if we are using makedumpfile here, then generate the config file #also only build this config if we don't have vmcoreinfo on this kernel if [ -n "$CORE_COLLECTOR" -a ! -e /sys/kernel/vmcoreinfo ]; then RUN_KERN_VER=`uname -r` if [ ! -f /usr/lib/debug/lib/modules/$RUN_KERN_VER/vmlinux ] then echo "kernel-debuginfo-$RUN_KERN_VER is not installed. You need this to use makedumpfile!" echo "please install it and restart the kdump service" cleanup_and_exit 1 fi XEN_OPTS="" grep -q control_d /proc/xen/capabilities 2>/dev/null if [ $? -eq 0 ] then # This is a dom0 xen kernel so we need to add xen-syms to the # makedumpefile config RUN_XEN_VER=${RUN_KERN_VER%xen} if [ ! -f /usr/lib/debug/boot/xen-syms-$RUN_XEN_VER.debug ] then echo "xen-syms.debug not found and is needed on this kernel to use makedumpfile!" echo "please install it and restart the kdump service" cleanup_and_exit 1 fi XEN_OPTS="--xen-syms /usr/lib/debug/boot/xen-syms-$RUN_XEN_VER.debug" /usr//sbin/makedumpfile -g $MNTIMAGE/etc/makedumpfile.config $XEN_OPTS > /dev/null 2>&1 else /usr//sbin/makedumpfile -g $MNTIMAGE/etc/makedumpfile.config -x /usr/lib/debug/lib/modules/$RUN_KERN_VER/vmlinux > /dev/null 2>&1 fi if [ $? != 0 ]; then echo "could not generate makedumpfile configuration. aborting" cleanup_and_exit 1 fi fi #include extra user-specified modules for kdump initrd for n in $extra_kdump_mods; do findmodule $n done # After we get all the modules, lets depsolve the list # so that we load them in proper order depsolve_modlist #copy in busybox and make symlinks to its supported utilities cp /sbin/busybox $MNTIMAGE/sbin/busybox bin="$bin /sbin/busybox" cd $MNTIMAGE/sbin for i in `/sbin/busybox | awk 'BEGIN {found=0} /.*/ { if (found) print $0 } /Currently/ {found=1}' | sed -e's/,//g' -e's/busybox//g'` do ln -s busybox $MNTIMAGE/sbin/$i done cd - > /dev/null 2>&1 if [ -f /etc/mdadm.conf ] then cp /etc/mdadm.conf $MNTIMAGE/etc bin="$bin /sbin/mdadm /sbin/mdmon" fi # we need the fstab file so that we can fsck properly cp /etc/fstab $MNTIMAGE/etc/fstab bin="$bin /sbin/fsck.ext2 /sbin/fsck.ext3 /sbin/fsck.ext4" grep -v "^#" $KDUMP_CONFIG_FILE | cat >> $MNTIMAGE/etc/kdump.conf if [ -f "$TMPDISKLIST" ]; then mv $TMPDISKLIST $MNTIMAGE/etc/critical_disks fi #THIS IS WHERE WE GENERATE OUR ADDITINONAL UTILITIES #Busybox doesn't have a /bin/sh applet, #so we build a reasonable faximilie here cat >> $MNTIMAGE/bin/sh << EOF #!/bin/hush #drop the -c from the command line shift 1 #now execute the passed command #don't exec this or $@ won't work /bin/hush -c "\$@" EOF chmod 755 $MNTIMAGE/bin/sh cat >> $MNTIMAGE/usr/share/udhcpc/default.script << EOF #!/bin/hush [ -z "\$1" ] && echo "Error: should be called from udhcpc" && exit 1 case "\$1" in deconfig) /sbin/ifconfig \$interface 0.0.0.0 ;; renew|bound) /sbin/ifconfig \$interface \$ip netmask \$subnet if [ -n "\$router" ] ; then echo "deleting routers" while route del default gw 0.0.0.0 dev \$interface 2>/dev/null ; do : done for i in \$router ; do route add default gw \$i dev \$interface done fi echo -n > /etc/resolv.conf [ -n "\$domain" ] && echo search \$domain >> /etc/resolv.conf for i in \$dns ; do echo adding dns \$i echo nameserver \$i >> /etc/resolv.conf done ;; *) echo "Unable to get a DHCP address retry..." exit 1 ;; esac exit 0 EOF #NETWORKING SCRIPT DIRECTORIES cat >> $MNTIMAGE/etc/network/if-pre-up.d/pre-up-script << EOF #!/bin/hush PATH=\$PATH:/scriptfns . /etc/ifcfg-\$IFACE link_delay() { if [ -n "\$LINK_DELAY" ] then echo "\$IFACE Link Up. Waiting \$LINK_DELAY Seconds" sleep \$LINK_DELAY echo "Continuing" fi } LINK_DELAY=$LINK_DELAY if [ "\$BUS_ID" == "Bridge" ] then brctl addbr \$IFACE brctl setfd \$IFACE 1 fi bring_up_bond_interface() { BOND_MASTER=\$1 if [ ! -f /sys/class/net/\$BOND_MASTER ]; then echo +\$BOND_MASTER > /sys/class/net/bonding_masters #this is a bond find and bring up the slaves echo searching for slaves find_activate_slaves \$BOND_MASTER fi } if [ "\$BUS_ID" == "Bonding" ] then bring_up_bond_interface \$IFACE elif [ "\$BUS_ID" == "Vlan" ] then case "\$IFACE" in vlan*) VLAN_ID=\${IFACE#vlan*} ifup \$PHYSDEV vconfig add \$PHYSDEV \$VLAN_ID ip link set \$PHYSDEV.\$VLAN_ID name \$IFACE ;; *.*) #bring up the base interface first BASE_DEV=\`echo \$IFACE | cut -d"." -f1\` VLAN_ID=\`echo \$IFACE | cut -d"." -f2\` ifup \$BASE_DEV vconfig add \$BASE_DEV \$VLAN_ID ;; esac elif [ "\$BUS_ID" == "Bridge" ] then echo searching for bridge members find_bridge_members \$IFACE fi ifconfig \$IFACE up link_delay exit 0 EOF for i in `ls $MNTIMAGE/etc/network/if-pre-up.d` do chmod 755 $MNTIMAGE/etc/network/if-pre-up.d/$i done cat >> $MNTIMAGE/etc/network/if-up.d/up-script << EOF #!/bin/hush PATH=\$PATH:/scriptfns if [ "\$METHOD" != "dhcp" ] then . /etc/ifcfg-\$IFACE if [ -n "\$IPADDR" ] then ifconfig \$IFACE \$IPADDR netmask \$NETMASK else ifconfig \$IFACE up fi fi exit 0 EOF for i in `ls $MNTIMAGE/etc/network/if-up.d` do chmod 755 $MNTIMAGE/etc/network/if-up.d/$i done chmod 755 $MNTIMAGE/usr/share/udhcpc/default.script # WE DONT HAVE FUNCTIONS AVAILABLE IN MSH # SO WE IMPLEMENT THEM HERE AS scripts SCRIPTDIR=$MNTIMAGE/scriptfns mkdir -p $SCRIPTDIR cat >> $SCRIPTDIR/show_memstats << EOF #!/bin/hush while [ \$# -gt 0 ]; do case \$1 in shortmem) cat /proc/meminfo | grep -e "^MemFree" -e "^Cached" -e "^Slab" ;; mem) cat /proc/meminfo ;; slab) cat /proc/slabinfo ;; iomem) cat /proc/iomem ;; esac shift done echo EOF cat >> $SCRIPTDIR/map_interface << EOF #!/bin/hush if [ -e /tmp/tmpcnt ] then TMPCNT=\`cat /tmp/tmpcnt\` else TMPCNT=0 fi #erase previously recorded map RENAMED="" REAL_DEV="" HWADDR="" NETDEV=\$1 . /etc/ifcfg-\$NETDEV HWADDR=\`echo "\$HWADDR" | awk '{print toupper(\$1)}'\` for j in \`ifconfig -a | awk '/.*Link encap.*/ {print \$1}'\` do case "\$BUS_ID" in Bonding) REAL_DEV=\$NETDEV RENAMED="yes" ;; Vlan) case "\$NETDEV" in vlan*) REAL_DEV=\$NETDEV BASE_DEV=\$PHYSDEV REAL_BASE=\`grep "^\$BASE_DEV " /etc/iface_map | cut -d" " -f2\` sed -i -e "s/PHYSDEV=\$BASE_DEV/PHYSDEV=\$REAL_BASE/" /etc/ifcfg-\$NETDEV RENAMED="yes" ;; *.*) BASE_DEV=\`echo \$NETDEV | cut -d"." -f1\` VLAN_ID=\`echo \$NETDEV | cut -d"." -f2\` REAL_BASE=\`grep "^\$BASE_DEV " /etc/iface_map | cut -d" " -f2\` REAL_DEV=\$REAL_BASE.\$VLAN_ID NETDEV=\$BASE_DEV.\$VLAN_ID RENAMED="yes" ;; esac ;; Bridge) REAL_DEV=\$NETDEV RENAMED="yes" ;; *) INFO=\`ls -l /sys/class/net/\$j/device 2>/dev/null | sed -e's/\\(.*\\/\\)\\(.*$\\)/\\2/'\` if [ "\$INFO" == "\$BUS_ID" -a -z "\$REAL_DEV" ] then # Some multiport network cards report one BUS address # for all ports. In such cases differentiate the ports by # the MAC address if it is included in the ifcfg-ethn file # as HWADDR. NUM_NIC_PORTS=\`ls /sys/class/net/\$j/device/net 2>/dev/null | grep -c .\` if [ -n "\$HWADDR" -a "\$NUM_NIC_PORTS" -gt 1 ] then REAL_MAC=\`ifconfig \$j | awk '/.*HWaddr.*/ {print toupper(\$5)}'\` if [ "\$HWADDR" == "\$REAL_MAC" ] then REAL_DEV=\$j RENAMED="yes" fi elif [ -z "\$HWADDR" -a "\$NUM_NIC_PORTS" -gt 1 ] then ID=\`cat /sys/class/net/\$j/dev_id\` if [ "\$ID" == "\$DEV_ID" ] then REAL_DEV=\$j RENAMED="yes" fi else REAL_DEV=\$j RENAMED="yes" fi fi ;; esac done if [ -z "\$RENAMED" ] then echo "Could not find a mapping for device \$NETDEV" exit 1 fi #build the interface rename map echo \$NETDEV \$REAL_DEV tmp\$TMPCNT >> /etc/iface_map TMPCNT=\`echo \$TMPCNT 1 + p | dc\` echo \$TMPCNT > /tmp/tmpcnt echo mapping \$NETDEV to \$REAL_DEV EOF cat >> $SCRIPTDIR/rename_interfaces << EOF #!/bin/hush rename_iface_in_file() { local i=\$1 local CURRENT=\$2 local INTERIM=\$3 fname=\$(basename \$i) case \$fname in ifcfg-*) # Replace iface occurences only in DEVICE lines sed -i 's,'"\(^DEVICE=\)\"\?\$CURRENT\"\?\$"','"\1\$INTERIM"',' \$i ;; iface_to_activate) # Replace iface occurences in lines containg exact this iface sed -i 's,'"^\$CURRENT\$"','"\$INTERIM"',' \$i ;; interfaces) # Replace iface occurences only in iface lines sed -i 's,'"\(^iface\ \)\$CURRENT\ "','"\1\$INTERIM\ "',' \$i ;; esac } MAP_COUNT=\`awk 'END{print NR}' /etc/iface_map\` #now do all the renaming - first to temp space for j in \`seq 1 1 \$MAP_COUNT\` do CURRENT=\`awk -v MATCH=\$j '{if (NR == MATCH) print \$1}' /etc/iface_map\` NEW=\`awk -v MATCH=\$j '{if (NR == MATCH) print \$2}' /etc/iface_map\` INTERIM=\`awk -v MATCH=\$j '{if (NR == MATCH) print \$3}' /etc/iface_map\` mv /etc/ifcfg-\$CURRENT /etc/ifcfg-\$INTERIM for i in /etc/ifcfg-\$INTERIM /etc/iface_to_activate /etc/network/interfaces do rename_iface_in_file "\$i" "\$CURRENT" "\$INTERIM" done if [ -f /etc/network/route-static ] then # the double quotes lets us expand the variables sed -i 's,'"\(.*dev\) \$CURRENT"','"\1 \$INTERIM"',g' /etc/network/route-static fi done for j in \`seq 1 1 \$MAP_COUNT\` do CURRENT=\`awk -v MATCH=\$j '{if (NR == MATCH) print \$1}' /etc/iface_map\` NEW=\`awk -v MATCH=\$j '{if (NR == MATCH) print \$2}' /etc/iface_map\` INTERIM=\`awk -v MATCH=\$j '{if (NR == MATCH) print \$3}' /etc/iface_map\` mv /etc/ifcfg-\$INTERIM /etc/ifcfg-\$NEW for i in /etc/ifcfg-\$NEW /etc/iface_to_activate /etc/network/interfaces do rename_iface_in_file "\$i" "\$INTERIM" "\$NEW" done if [ -f /etc/network/route-static ] then # the double quotes lets us expand the variables sed -i 's,'"\(.*dev\) \$INTERIM"','"\1 \$NEW"',g' /etc/network/route-static fi IS_BOND=\`echo /etc/ifcfg-\$NEW | grep bond\` if [ -n "\$IS_BOND" ] then for i in \`ls /etc/ifcfg-*\` do awk -v str2="MASTER=\$NEW" "{gsub(/.*MASTER=\$CURRENT.*/,str2);print}" \$i > \$i.tmp mv \$i.tmp \$i done fi done rm -f /etc/iface_map exit 0 EOF cat >> $SCRIPTDIR/find_activate_slaves << EOF #!/bin/hush BOND_MASTER=\$1 for j in \`ls /etc/ifcfg-*\` do MASTER="" touch \$j . \$j if [ "\$MASTER" == "\$BOND_MASTER" ] then dev=\`echo \$j | cut -d'-' -f2-\` #this is a slave of the rising interface echo enslaving \$dev to \$BOND_MASTER echo +\$dev > /sys/class/net/\$BOND_MASTER/bonding/slaves ifup \$dev fi done EOF cat >> $SCRIPTDIR/find_bridge_members << EOF #!/bin/msh for j in \`ls /etc/ifcfg-*\` do touch \$j BRIDGE="" . \$j if [ "\$1" == "\$BRIDGE" ] then dev=\`echo \$j | cut -d'-' -f2-\` ifconfig \$dev promisc ifup \$dev echo adding \$dev to \$1 brctl addif \$1 \$dev fi done EOF cat >> $SCRIPTDIR/add_route << EOF #!/bin/hush file=\$1 handle_ip_file() { local f t type= file=\$1 proto="-4" f=\${file##*/} t=\${f%%-*} type=\${t%%6} if [ "\$type" != "\$t" ]; then proto="-6" fi cat "\$file" nr_lines=\$(wc -l < "\$file") for i in \`seq 1 \$nr_lines\`; do line=\$(awk -v li=\$i '{if(NR==li){print}}' \$file) /sbin/ip \$proto \$type add \$line done } if [ -f "\$file" ]; then handle_ip_file \$file fi EOF cat >> $SCRIPTDIR/monitor_dd_progress << EOF #!/bin/hush SRC_FILE_SIZE=\`ls -l /proc/vmcore | awk '{print \$5}'\` BLOCK_SIZE=\$1 SRC_FILE_MB=\`dc \$SRC_FILE_SIZE 1048576 / p\` while true do DD_PID=\`pidof dd\` if [ -n "\$DD_PID" ] then break fi done while true do sleep 5 if [ ! -d /proc/\$DD_PID ] then break fi kill -SIGUSR1 \$DD_PID CURRENT_SIZE=\`tail -n 1 /tmp/dd_progress_file | sed "s/[^0-9].*//g"\` CURRENT_MB=\`dc \$CURRENT_SIZE \$BLOCK_SIZE \* 1048576 / p\` echo -n -e "Copied \$CURRENT_MB MB / \$SRC_FILE_MB MB\\\r" done rm -f /tmp/dd_progres_file EOF cat >> $SCRIPTDIR/monitor_scp_progress << EOF #!/bin/hush SRC_FILE_SIZE=\`ls -l /proc/vmcore | awk '{print \$5}'\` LOCATION=\$1 REMOTE_FILE=\$2 SRC_FILE_MB=\`dc \$SRC_FILE_SIZE 1048576 / p\` while true do SCP_PID=\`pidof scp | awk '{print \$1}'\` if [ -n "\$SCP_PID" ] then break fi done while true do sleep 5 if [ ! -d /proc/\$SCP_PID ] then break fi SSH_OUTPUT=\`ssh -q -i $SSH_KEY_LOCATION -o BatchMode=yes \$LOCATION ls -l \$REMOTE_FILE\` REMOTE_SIZE=\`echo \$SSH_OUTPUT | awk '{print \$5}'\` REMOTE_SIZE_MB=\`dc \$REMOTE_SIZE 1048576 / p\` echo -n -e "Copied \$REMOTE_SIZE_MB MB / \$SRC_FILE_MB MB\\\r" done EOF cat >> $SCRIPTDIR/monitor_cp_progress <> $SCRIPTDIR/handle_event < /sys\$DEVPATH/loading cat "\$DIR/\$FIRMWARE" > /sys\$DEVPATH/data echo 0 > /sys\$DEVPATH/loading exit 0 done EOF cat >> $SCRIPTDIR/display_mem_usage <> $SCRIPTDIR/iscsi_start <> $SCRIPTDIR/process_multipath <> $SCRIPTDIR/ccw_net_init < \$BLACKLIST if [ \$? -ne 0 ]; then echo "Failed to free \$i from \$BLACKLIST" fi echo 1 > \$CIO_SETTLE #group buses timedwait_for_path "/sys/bus/ccwgroup/drivers/\$NETTYPE/group" bus1=\`echo \$SUBCHANNELS | cut -d',' -f1\` echo "\$SUBCHANNELS" > /sys/bus/ccwgroup/drivers/\$NETTYPE/group if [ \$? -ne 0 ]; then echo "Failed to group \$SUBCHANNELS in \$NETTYPE/group" exit 1 fi timedwait_for_path "/sys/bus/ccw/devices/\$bus1/group_device" group_device=\`readlink -f /sys/bus/ccw/devices/\$bus1/group_device\` if [ -z "\$group_device" ]; then echo "Failed to find: /sys/bus/ccw/devices/\$bus1/group_device" exit 1 fi #set options if [ -n "\$OPTIONS" ]; then for option in "\$OPTIONS"; do opt_name=\`echo \$option | cut -d'=' -f1\` opt_val=\`echo \$option | cut -d'=' -f2\` echo \$opt_val > \$group_device/\$opt_name if [ \$? -ne 0 ]; then echo "Failed to set option \$group_device/\$opt_name" fi done fi if [ -n "\$PORTNAME" ]; then echo \$PORTNAME > \$group_device/portname if [ \$? -ne 0 ]; then echo "Failed to set PORTNAME" fi fi #bring online echo 1 > \$group_device/online if [ \$? -ne 0 ]; then echo "Failed to bring \$DEVICE online" fi #set desired interface name ifname=\`cat \$group_device/if_name\` if [ "\$ifname" != "\$DEVICE" ]; then echo "\$ifname != \$DEVICE" ip link set dev \$ifname name \$DEVICE if [ \$? -ne 0 ]; then echo "Failed to rename: \$ifname -> \$DEVICE" fi fi EOF chmod a+x $SCRIPTDIR/ccw_net_init } emit_network() { emit "if [ \$network_up -eq 0 ]" emit "then" emit " for i in \`ls /etc/ifcfg-*\`" emit " do" emit " NETDEV=\`echo \$i | cut -d\"-\" -f2-\`" emit " map_interface \$NETDEV" emit " done" emit " rename_interfaces" emit " for IFACE in \`cat /etc/iface_to_activate\`" emit " do" emit " ifup \$IFACE" emit " IFADDR=\`ifconfig \$IFACE | awk '/inet addr/ {print \$2}' | cut -d\":\" -f 2\`" emit " if [ -z \"\$IFADDR\" ]" emit " then" emit " echo \"\$IFACE failed to come up\"" emit " fi" emit " done" emit " add_route \"/etc/network/route-static\"" emit " network_up=1" emit "fi" } #DONT ADD STUFF to SCRIPTDIR PAST HERE for i in `ls $SCRIPTDIR/*` do chmod 755 $i done if [ -e /etc/fstab.sys ]; then inst /etc/fstab.sys "$MNTIMAGE/etc/fstab.sys" fi #build a good passwd file cat >> $MNTIMAGE/etc/passwd << EOF root:x:0:0:root:/root:/bin/bash EOF default_exclude_modules="snd soundcore cfg80211 mac80211 iwl virtio_balloon\ microcode mlx4_core hyperv_fb hv_balloon" # $1: module basename exclude_module() { local i for i in $extra_kdump_mods; do [[ "$1" =~ "$i" ]] && return 1 done for i in $default_exclude_modules; do [[ "$1" =~ "$i" ]] && return 0 done return 1 } mkdir -p $MNTIMAGE/lib/modules/$kernel for MODULE in $MODULES; do _base_name=$(basename $MODULE) if exclude_module $_base_name; then MODULES=${MODULES/$MODULE/} continue fi if [ -x /usr/bin/strip ]; then /usr/bin/strip -g $verbose $MODULE -o $MNTIMAGE/lib/modules/$kernel/$_base_name else cp $verbose -a $MODULE $MNTIMAGE/lib/modules/$kernel/ fi modinfo $MODULE | awk '/^firmware:/{print $2}' | while read firmware; do mkdir -p $(dirname $MNTIMAGE/lib/firmware/$firmware) # if there is a kmod firmware if [ -e /lib/firmware/updates/$firmware ]; then cp /lib/firmware/updates/$firmware $MNTIMAGE/lib/firmware/$firmware else cp /lib/firmware/$firmware $MNTIMAGE/lib/firmware/$firmware fi done done depmod -b $MNTIMAGE/ ln -sf ram1 $MNTIMAGE/dev/ram # FIXME -- this can really go poorly with clvm or duplicate vg names. # nash should do lvm probing for us and write its own configs. if [ -n "$vg_list" ]; then inst /sbin/lvm "$MNTIMAGE/bin/lvm" bin="$bin /sbin/lvm" if [ -f /etc/lvm/lvm.conf ]; then cp $verbose --parents /etc/lvm/lvm.conf $MNTIMAGE/ fi fi mkdir -p $MNTIMAGE/$FONTDIR inst $FONTDIR/${DEFAULT_FONT} $MNTIMAGE/$FONTDIR/ echo -n >| $RCFILE cat >> $MNTIMAGE/init << EOF #!/bin/hush export PATH=$PATH:/scriptfns # Tell libdevmapper that there is no udev export DM_DISABLE_UDEV=1 mount -t proc /proc /proc echo Mounting proc filesystem echo Mounting sysfs filesystem mount -t sysfs /sys /sys echo "/scriptfns/handle_event" > /sys/kernel/uevent_helper echo 1 > /proc/sys/vm/dirty_background_ratio echo 5 > /proc/sys/vm/dirty_ratio echo 10 > /proc/sys/vm/dirty_writeback_centisecs echo 50 > /proc/sys/vm/dirty_expire_centisecs echo Creating /dev mount -o mode=0755 -t tmpfs /dev /dev mkdir /dev/pts mount -t devpts -o gid=5,mode=620 /dev/pts /dev/pts mkdir /dev/shm mkdir /dev/mapper echo Creating initial device nodes mknod /dev/mem c 1 1 mknod /dev/null c 1 3 mknod /dev/zero c 1 5 mknod /dev/systty c 4 0 mknod /dev/tty c 5 0 mknod /dev/console c 5 1 mknod /dev/ptmx c 5 2 mknod /dev/urandom c 1 9 mknod /dev/efirtc c 10 136 export network_up=0 setfont $FONTDIR/$DEFAULT_FONT -C /dev/console display_mem_usage set -o pipefail EOF # Some helper functions go here. cat >> $MNTIMAGE/init << EOF save_vmcore_dmesg_fs() { local _dmesg_collector=\$1 local _path=\$2 local _exitcode echo "Saving vmcore-dmesg.txt" \$_dmesg_collector /proc/vmcore > \${_path}/vmcore-dmesg-incomplete.txt _exitcode=\$? if [ \$_exitcode -eq 0 ]; then mv \${_path}/vmcore-dmesg-incomplete.txt \${_path}/vmcore-dmesg.txt # Make sure file is on disk. There have been instances where later # saving vmcore failed and system rebooted without sync and there # was no vmcore-dmesg.txt available. sync echo "Saved vmcore-dmesg.txt" else echo "Saving vmcore-dmesg.txt failed" fi return \$_exitcode } save_vmcore_dmesg_ssh() { local _dmesg_collector=\$1 local _path=\$2 local _opts="\$3" local _location=\$4 local _exitcode echo "Saving vmcore-dmesg.txt" \$_dmesg_collector /proc/vmcore | ssh \$_opts \$_location "dd of=\$_path/vmcore-dmesg-incomplete.txt" _exitcode=\$? if [ \$_exitcode -eq 0 ]; then ssh -q \$_opts \$_location mv \$_path/vmcore-dmesg-incomplete.txt \$_path/vmcore-dmesg.txt echo "Saved vmcore-dmesg.txt" else echo "Saving vmcore-dmesg.txt failed" fi return \$_exitcode } wait_for_multipath_devices() { local _found=0 while true do sleep 1 mpath_list=\$(dmsetup ls --target multipath 2> /dev/null | awk '{print \$1}') for mpdev in $multipath_devices do # Also make sure the corresponding device node is created if echo \$mpath_list | grep "\${mpdev##*/}" > /dev/null &&\ [ -e /dev/mapper/\${mpdev##*/} ] then _found=1 else _found=0 break; fi done [ \$_found -eq 1 ] && break if [ -n "$DISK_TIMEOUT" -a "\$timeout_count" -ge "$DISK_TIMEOUT" ] then break fi timeout_count=\`expr \$timeout_count + 1\` done } EOF # makedumpfile creates line mode terminal friendly output when TERM=dumb is set. if [ "$ARCH" == "s390x" ]; then echo "export TERM=dumb" >> $MNTIMAGE/init fi # Linux on System z: Bring zfcp adapter and devices online emit_zfcp_device_init() { local DEVICE WWPN FCPLUN emit "echo Waiting 2 seconds for driver initialization." emit "sleep 2" cat /etc/zfcp.conf | grep -v "^#" | tr "A-Z" "a-z" | while read DEVICE WWPN FCPLUN; do cemit < /proc/cio_ignore echo -n 1 > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/online echo -n 1 > /proc/cio_settle echo -n $WWPN > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/port_add echo -n $FCPLUN > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/$WWPN/unit_add display_mem_usage EOF done } # Linux on System z: Bring DASD devices online emit_dasd_device_init() { local DEVICE OPTIONS cat /etc/dasd.conf | grep -v "^#" | tr "A-Z" "a-z" | while read DEVICE OPTIONS; do test -n "$DEVICE" || continue emit "echo "free ${DEVICE/0x/}" > /proc/cio_ignore" emit "echo -n 1 > /proc/cio_settle" emit "echo -n 1 > /sys/bus/ccw/devices/${DEVICE/0x/}/online" # Set device options (if specified) test -n "$OPTIONS" || continue set $OPTIONS while [ -n "$1" ]; do ( attribute="$1" IFS="=" set $attribute if [ $1 != "use_diag" ]; then emit "echo $2 > /sys/bus/ccw/devices/${DEVICE/0x/}/$1" fi ) shift done done } # XXX really we need to openvt too, in case someting changes the # color palette and then changes vts on fbcon before gettys start. # (yay, fbcon bugs!) for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 ; do emit "mknod /dev/tty$i c 4 $i" done for i in 0 1 2 3 ; do emit "mknod /dev/ttyS$i c 4 $(($i + 64))" done make_trace_mem "At init start" 1+:mem 2+:iomem 3+:slab for MODULE in $MODULES; do text="" module=`echo $MODULE | sed "s|.*/||" | sed "s/.k\?o$//"` # check if module is in blacklist skipit="" for m in $blacklist_mods; do if [ $module == $m ]; then skipit="skip" break fi done if [ ! -z "$skipit" ]; then continue fi fullmodule=`echo $MODULE | sed "s|.*/||"` if [ -n "$modulefile" ] then options=`sed -n -e "s/^options[ ][ ]*$module[ ][ ]*//p" $modulefile 2>/dev/null` fi if [ -n "$KDUMP_CONFIG_FILE" ] then options2=`sed -n -e "s/^options[ ][ ]*$module[ ][ ]*//p" $KDUMP_CONFIG_FILE 2>/dev/null` fi # Overwrite options if option is specified in kdump.conf if [ -n "$options2" ]; then options=$options2 fi if [ -n "$options" ]; then # hush doesn't support '(' or ')' directly, so add '\' before them options=$(echo $options| sed 's/\([()]\)/\\\1/g') vecho "Adding module $module$text with options $options" else vecho "Adding module $module$text" fi emit "echo \"Loading $fullmodule module\"" emit "insmod /lib/modules/$kernel/$fullmodule $options" make_trace_mem "After module $fullmodule has been loaded" 1:shortmem 2+:mem 3+:slab # Hack - we need a delay after loading usb-storage to give things # time to settle down before we start looking a block devices if [ "$module" = "usb-storage" ]; then emit "echo Waiting 8 seconds for driver initialization." emit "sleep 8" fi if [ "$module" = "zfcp" -a -f /etc/zfcp.conf ]; then emit_zfcp_device_init fi done create_rtc_dev() { cemit < $MNTIMAGE/etc/rtc_device fi fi fi create_rtc_dev # initialise network devices # arch specific setup before interfaces can be configured arch_netdev_init # Before we wait for block devices to come up, try to bring up any iscsi # devices and bring up the networking if [ -n "$ISCSI_DEVICES" ];then # bring up the network emit_network # start iscsi emit "iscsi_start" fi # Before we create our block devices, we need to make sure that we have all the needed block devices discovered # Thats seems like a chicken and egg problem, I know, but we generated a critcal_disks list when we build this initramfs # that tell us what devices we need to wait to see in /sys/block # first bring DASDs online on s390 if [ -f /etc/dasd.conf ]; then emit_dasd_device_init fi cat >> $MNTIMAGE/init << EOF echo "Waiting for required block device discovery" block_part_mknod() { local dev_name=\$1 major minor part_name part_path hdparm -z /dev/\$dev_name >/dev/null 2>/dev/null for part_name in \`ls /sys/block/\$dev_name/ | grep ^\$dev_name\` do part_path="/sys/block/\$dev_name/\$part_name" if [ -e "\$part_path/dev" ]; then major=\`cat "\$part_path/dev" | cut -d":" -f1\` minor=\`cat "\$part_path/dev" | cut -d":" -f2\` mknod /dev/\$part_name b \$major \$minor fi done } block_mknod() { local dev_name=\$1 major minor [ -b /dev/\$dev_name ] && return major=\`cat /sys/block/\$dev_name/dev | cut -d":" -f1\` minor=\`cat /sys/block/\$dev_name/dev | cut -d":" -f2\` echo "Creating block device \$dev_name" mknod /dev/\$dev_name b \$major \$minor block_part_mknod \$dev_name } wait_critical_disks_by_vendor_model_type() { for i in \`cat /etc/critical_disks | awk '{print \$1}'\` do IDSTRING=\`grep \$i /etc/critical_disks | awk '{print \$2}'\` COUNT=\`grep \$i /etc/critical_disks | awk '{print \$3}'\` found=0 echo -n "Waiting for \$COUNT \$i-like device(s)..." while true do for j in \`ls /sys/block\` do DSKSTRING="" TMPNAME="" if [ ! -d /sys/block/\$j/device ] then continue fi for a in "vendor" "model" "type" do TMPNAME=\`cat /sys/block/\$j/device/\$a 2>/dev/null \` DSKSTRING="\$DSKSTRING \$TMPNAME" done DSKSTRING=\`echo \$DSKSTRING | sed -e's/ //g'\` if [ "\$DSKSTRING" == "\$IDSTRING" ] then found=\$((\$found + 1)) fi if [ \$found -ge \$COUNT ] then break 2 fi done sleep 1 if [ -n "$DISK_TIMEOUT" -a "\$timeout_count" -ge "$DISK_TIMEOUT" ] then break 2 fi timeout_count=\`expr \$timeout_count + 1\` done echo Found found=0 done } get_id_file_from_type() { case \$1 in scsi_ids) echo "/etc/critical_scsi_ids" ;; virtio_ids) echo "/etc/virtio_ids" ;; scm_ids) echo "/etc/scm_ids" ;; dasd_bus_ids) echo "/etc/dasd_bus_ids" ;; esac } #$1: id-type #$2: device name get_device_id() { case \$1 in scsi_ids) echo \$(scsi_id --whitelisted --device=\$2 --replace-whitespace) ;; virtio_ids) local majmin=\$(cat /sys/block/\$(basename \$2)/dev 2>/dev/null) cat /sys/dev/block/\$majmin/serial 2>/dev/null ;; scm_ids) basename \$(readlink /sys/block/\$(basename \$2)/device) 2>/dev/null ;; dasd_bus_ids) basename \$(readlink /sys/block/\$(basename \$2)/device) 2>/dev/null ;; esac } _wait_critical_disks() { local id_tmp="" local nr_lines i line id local idfile # \$1==vendor_model_type means using old vendor/model/type sysfs attributes # to idenfify the critical disks. if [ "\$1" = "vendor_model_type" ]; then wait_critical_disks_by_vendor_model_type return \$? fi idfile=\$(get_id_file_from_type \$1) #rhel6 hush does not support read line by line in a while loop, so.. nr_lines=\$(wc -l < "\$idfile") for i in \`seq 1 \$nr_lines\`; do id=\$(awk -v li=\$i 'NR==li {print}' \$idfile) echo "Waiting for device with \$1: \$id ..." while true; do cd /sys/block for j in *; do [ ! -b /dev/\$j ] && block_mknod \$j id_tmp=\$(get_device_id \$1 "/dev/\$j") if [ "\$id" = "\$id_tmp" ]; then echo "Found device with \$1: \$id" break 2 fi done sleep 1 if [ -n "$DISK_TIMEOUT" -a "\$timeout_count" -ge "$DISK_TIMEOUT" ] then break 2 fi timeout_count=\`expr \$timeout_count + 1\` done done } wait_critical_disks() { if [ -f /etc/critical_scsi_ids ]; then _wait_critical_disks scsi_ids fi if [ -f /etc/virtio_ids ]; then _wait_critical_disks virtio_ids fi if [ -f /etc/scm_ids ]; then _wait_critical_disks scm_ids fi if [ -f /etc/dasd_bus_ids ]; then _wait_critical_disks dasd_bus_ids fi if [ -f /etc/critical_disks ]; then _wait_critical_disks vendor_model_type fi } timeout_count=0 wait_critical_disks EOF make_trace_mem "After block device discovery" 1:shortmem 2+:mem 3+:slab # HACK: module loading + device creation isn't necessarily synchronous... # this will make sure that we have all of our devices before trying # things like RAID or LVM emit "echo Creating Remain Block Devices" emit "mkdir /dev/cciss" emit "mkdir /dev/ida" emit "for i in \`ls /sys/block\`; do" emit " block_mknod \$i" emit "done" #now do any software raid devices we might have emit "if [ -f /etc/mdadm.conf ]" emit "then" emit " for i in \`awk '/^ARRAY[[:space:]]/{print \$2}' /etc/mdadm.conf\`" emit " do" emit " MD_MIN=\`echo \$i | sed -e 's/^[^0-9]*\([0-9]\+\)$/\1/'\`" emit " mknod \$i b 9 \$MD_MIN" emit " done" emit "fi" make_trace_mem "After creation of block devices" 1:shortmem 2+:mem 3+:slab if [ -n "$vg_list" ]; then emit "echo Making device-mapper control node" emit "DM_MAJ=\`cat /proc/devices | grep misc | cut -d\" \" -f2\`" emit "DM_MIN=\`cat /proc/misc | grep device-mapper | cut -d\" \" -f2\`" emit "mknod /dev/mapper/control b \$DM_MAJ \$DM_MIN" fi # multipath if [ -n "$multipath_devices" ]; then emit "echo Creating multipath devices" emit "multipathd -B || multipathd" emit "wait_for_multipath_devices" emit "dmsetup ls --target multipath --exec 'kpartx -a -p p'" # Create various multipath device nodes and links #emit "process_multipath" fi if [ -n "$net_list" ]; then for netdev in $net_list; do emit "echo Bringing up $netdev" handle_netdev $netdev #emit $network done fi if [ -n "$raiddevices" ]; then for dev in $raiddevices; do cp -a /dev/${dev} $MNTIMAGE/dev emit "#need code here to set up md devs" done fi emit "if [ -f /etc/mdadm.conf ]" emit "then" emit " mdadm -A -s" emit "display_mem_usage" # create nodes if there is a partition within RAID device emit "for i in \`cat /proc/mdstat | grep active | cut -d' ' -f1\`; do" emit " block_part_mknod \$i" emit "done" emit "fi" if [ -n "$vg_list" ]; then emit "echo Scanning logical volumes" emit "lvm vgscan --ignorelockingfailure --mknodes" emit "echo Activating logical volumes" emit "lvm vgchange -a y --ignorelockingfailure" emit "DM_NUM=0" emit "for i in \`lvm lvs --noheadings -o lv_name,vg_name | sed -e's/ \\+/:/g'\`" emit "do" emit " LV=\`echo \$i | awk -F\":\" '{ print \$2 }'\`" emit " VGRP=\`echo \$i | awk -F\":\" '{ print \$3 }'\`" emit " mkdir -p /dev/\$VGRP" emit " if [ ! -e /dev/\$VGRP/\$LV ]" emit " then" emit " ln -s /dev/mapper/\$VGRP-\$LV /dev/\$VGRP/\$LV" emit " DM_NUM=\`echo \$DM_NUM 1 + p | dc\`" emit " if [ -z \"\$noresume\" ]" emit " then" emit " /sbin/dmsetup resume /dev/mapper/\$VGRP-\$LV" emit " fi" emit " fi" emit "done" emit "display_mem_usage" fi make_trace_mem "After scanning logical volumes" 1:shortmem 2+:mem 3+:slab copysshenv() { # Copy over the key itself. dir=`dirname $SSH_KEY_LOCATION` mkdir -p $MNTIMAGE/$dir cp -a $SSH_KEY_LOCATION $MNTIMAGE/$SSH_KEY_LOCATION # Copy over root and system-wide ssh configs. if [ -f /root/.ssh/config ]; then mkdir -p $MNTIMAGE/root/.ssh chmod 700 $MNTIMAGE/root/.ssh cp -a /root/.ssh/config $MNTIMAGE/root/.ssh/config fi if [ -f /etc/ssh/ssh_config ]; then mkdir -p $MNTIMAGE/etc/ssh/ cp -a /etc/ssh/ssh_config $MNTIMAGE/etc/ssh/ssh_config fi # Copy over any known_hosts files that would apply. if [ -f /root/.ssh/known_hosts ]; then mkdir -p $MNTIMAGE/root/.ssh chmod 700 $MNTIMAGE/root/.ssh cp -a /root/.ssh/known_hosts $MNTIMAGE/root/.ssh/known_hosts fi if [ -f /etc/ssh/ssh_known_hosts ]; then mkdir -p $MNTIMAGE/etc/ssh cp -a /etc/ssh/ssh_known_hosts $MNTIMAGE/etc/ssh/ssh_known_hosts fi return 0 } prepare_nfs4() { grep '^nobody:' /etc/passwd >> "$MNTIMAGE/etc/passwd" grep '^rpc:' /etc/passwd >> "$MNTIMAGE/etc/passwd" grep '^rpcuser:' /etc/passwd >> "$MNTIMAGE/etc/passwd" grep '^nobody:' /etc/group >> "$MNTIMAGE/etc/group" grep '^rpc:' /etc/group >> "$MNTIMAGE/etc/group" mkdir -m 0755 -p "$MNTIMAGE/var/lib/nfs/rpc_pipefs" mkdir -m 0755 -p "$MNTIMAGE/var/lib/rpcbind" mkdir -m 0755 -p "$MNTIMAGE/var/lib/nfs/statd/sm" for f in /etc/netconfig /etc/idmapd.conf /etc/nsswitch.conf /etc/rpc /etc/protocols /etc/services do [ -f "$f" ] && cp "$f" $MNTIMAGE/$f done bin=" $bin /sbin/mount.nfs4 /usr/sbin/rpc.idmapd /sbin/rpc.statd /sbin/rpcbind" [ -d /usr/lib64/libnfsidmap ] && k_extras="$k_extras $(echo /usr/lib64/libnfsidmap/*)" [ -d /usr/lib/libnfsidmap ] && k_extras="$k_extras $(echo /usr/lib/libnfsidmap/*)" } enter_user_space() { if [ "$ARCH" != "s390x" ]; then emit "echo Resetting kernel time value to BIOS time and timezone value to UTC." emit "cp /etc/utctime /etc/localtime" emit "hwclock --hctosys -l" fi emit "display_mem_usage" emit "echo Creating root device." emit "#check to see if we have root= on the command line" emit "ROOTDEV=\`cat /proc/cmdline | grep root=\`" emit "if [ -n \"\$ROOTDEV\" ]" emit "then" emit " ROOTDEV=\`cat /proc/cmdline | sed 's/^.*root=//' | cut -d\" \" -f1\`" emit " IS_LABEL=\`echo \$ROOTDEV | grep LABEL\`" emit " IS_UUID=\`echo \$ROOTDEV | grep UUID\`" emit " if [ -n \"\$IS_LABEL\" -o -n \"\$IS_UUID\" ] " emit " then" emit " ROOTDEV=\`findfs \"\$ROOTDEV\"\`" emit " fi" emit "else" emit " #we need to get the root major/minor from real-root-dev" emit " ROOT_DEV_NR=\`cat /proc/sys/kernel/real-root-dev\`" emit " ROOT_MIN=\`echo \$ROOT_DEV_NR | sed -e's/\\([0-9a-f]\\{1,2\\}\\)\\([0-9a-f]\\{2\\}\\)/\\2/'\`" emit " ROOT_MAJ=\`echo \$ROOT_DEV_NR | sed -e's/\\([0-9a-f]\\{1,2\\}\\)\\([0-9a-f]\\{2\\}\\)/\\1/'\`" emit " mknod /dev/rootdev b 0x\$ROOT_MAJ 0x\$ROOT_MIN" emit " ROOTDEV=/dev/rootdev" emit "fi" emit "display_mem_usage" emit "echo Checking root filesystem." if [ "$DUMP_FSTYPE" = "btrfs" ] ;then emit "btrfsck \$ROOTDEV" emit "if [ \$? != 0 ]" emit "then" emit " echo btrfsck \$ROOTDEV failed. Executing $FINAL_ACTION" emit " $FINAL_ACTION" emit "fi" elif [ "$DUMP_FSTYPE" = "xfs" ] ;then emit "# xfs does not need fsck" else emit "fsck -p \$ROOTDEV" emit "if [ \$? -gt 1 ]" emit "then" emit " echo fsck \$ROOTDEV failed. Executing $FINAL_ACTION" emit " $FINAL_ACTION" emit "fi" fi emit "echo Mounting root filesystem: mount -t $rootfs \$ROOTDEV /sysroot" emit "mount -t $rootfs \$ROOTDEV /sysroot >/dev/null 2>&1 " emit "if [ \$? != 0 ]" emit "then" emit " echo unable to mount rootfs. Dropping to shell" emit " /bin/hush" emit "fi" emit "#move various filesystems and prime the rootfs to boot properly" emit "umount /proc" emit "mount -t proc proc /sysroot/proc" emit "umount /sys" emit "mount -t sysfs sysfs /sysroot/sys" emit "mount -o bind /dev /sysroot/dev" emit "display_mem_usage" emit "touch /sysroot/fastboot" emit "echo Switching to new root and running init." emit "exec switch_root /sysroot /sbin/init" } if [ -n "$CLUSTER_NODE_LIST" ]; then # bring up the network emit_network emit "fence_kdump_send $FENCE_KDUMP_OPTS $CLUSTER_NODE_LIST &" fi handle_default_action() { if [ "$DEFAULT_ACTION" == "shell" ] then emit "echo dropping to initramfs shell" emit "echo exiting this shell will reboot your system" emit "/bin/hush" fi case $DEFAULT_ACTION in reboot|halt|poweroff|shell) emit "$FINAL_ACTION" ;; mount_root_run_init) emit "echo Attempting to enter user-space to capture vmcore" enter_user_space ;; esac } # normalize_path # Prints the normalized path, where it removes any duplicated # and trailing slashes. # Example: # $ normalize_path ///test/test// # /test/test normalize_path() { shopt -q -s extglob set -- "${1//+(\/)//}" shopt -q -u extglob echo "${1%/}" } # convert_abs_rel # Prints the relative path, when creating a symlink to from . # Example: # $ convert_abs_rel /usr/bin/test /bin/test-2 # ../../bin/test-2 # $ ln -s $(convert_abs_rel /usr/bin/test /bin/test-2) /usr/bin/test convert_abs_rel() { local __current __absolute __abssize __cursize __newpath local -i __i __level set -- "$(normalize_path "$1")" "$(normalize_path "$2")" # corner case #1 - self looping link [[ "$1" == "$2" ]] && { echo "${1##*/}"; return; } # corner case #2 - own dir link [[ "${1%/*}" == "$2" ]] && { echo "."; return; } IFS="/" __current=($1) IFS="/" __absolute=($2) __abssize=${#__absolute[@]} __cursize=${#__current[@]} while [[ ${__absolute[__level]} == ${__current[__level]} ]] do (( __level++ )) if (( __level > __abssize || __level > __cursize )) then break fi done for ((__i = __level; __i < __cursize-1; __i++)) do if ((__i > __level)) then __newpath=$__newpath"/" fi __newpath=$__newpath".." done for ((__i = __level; __i < __abssize; __i++)) do if [[ -n $__newpath ]] then __newpath=$__newpath"/" fi __newpath=$__newpath${__absolute[__i]} done echo "$__newpath" } # this func is used to setup fips environment. # please place it just above the final copy of bin and libs, # because it depends on the final collection of bin, kdump_libs # k_extra setup_fips() { bin="$bin /usr/bin/fipscheck" #ssh+fips require libraries that aren't found with ldd if [ -e /usr/lib/libssl.so.10 ]; then k_extras="$k_extras /usr/lib/libssl.so.10" fi if [ -e /usr/lib64/libssl.so.10 ]; then k_extras="$k_extras /usr/lib64/libssl.so.10" fi # find all fips .hmac files for n in $bin $kdump_libs $k_extras; do _hmac=${n%/*}/.${n##*/}.hmac if [[ -e "$_hmac" ]]; then fips_hmac="$fips_hmac $_hmac" fi done } if [ -n "$KDUMP_CONFIG_FILE" ]; then memtotal=`cat /proc/meminfo | grep MemTotal | awk '{print $2}'` #timezone info for date which outputs YYYY-MM-DD-hh:mm cp /etc/localtime $MNTIMAGE/etc/localtime if [ "$ARCH" != "s390x" ]; then cp /usr/share/zoneinfo/UTC $MNTIMAGE/etc/utctime cp /etc/adjtime $MNTIMAGE/etc/adjtime emit "if grep -q UTC /etc/adjtime" emit " then" emit " TIME_FORMAT=-u" emit " else" emit " TIME_FORMAT=-l" emit "fi" emit "hwclock --hctosys \$TIME_FORMAT" fi emit "DATE=\`date +%Y-%m-%d-%T\`" bin="$bin /sbin/dmsetup /sbin/kpartx" if [ -z "$CORE_COLLECTOR" ] || [ "${CORE_COLLECTOR%%[[:blank:]]*}" = "makedumpfile" ] then bin="$bin /usr/sbin/makedumpfile" fi #ssh, scp require libraries that aren't found with ldd lib=/lib && [ -d "/lib64" -a "$ARCH" != "ppc64" ] && lib=/lib64 k_extras="/$lib/libnss_compat.so.2 /$lib/libnss_files.so.2 /$lib/libnss_dns.so.2" if [ "$ARCH" = "ppc64" ] then k_extras="$k_extras /lib64/libnss_compat.so.2 /lib64/libnss_files.so.2 /lib64/libnss_dns.so.2" fi case "$USING_METHOD" in raw) bin="$bin /sbin/blockdev" #test raw partition kdump_chk "dd if=$DUMP_TARGET count=1 of=/dev/null > /dev/null 2>&1" \ "Bad raw partition $DUMP_TARGET" #check for available size is greater than $memtotal available_size=$(fdisk -s $DUMP_TARGET) if [ $available_size -lt $memtotal ]; then echo "Warning: There might not be enough space to save a vmcore." echo " The size of $DUMP_TARGET should be greater than $memtotal kilo bytes." fi #setup raw case if [ -n "$KDUMP_PRE" ] then emit "$KDUMP_PRE" emit "if [ \$? -ne 0 ]" emit "then" emit " echo kdump_pre script exited with non-zero status" emit " $FINAL_ACTION" emit "fi" fi emit "echo Saving to partition $DUMP_TARGET" emit "display_mem_usage" make_trace_mem "Before dumping vmcore" 1:shortmem 2+:mem 3+:slab emit "monitor_dd_progress 512 &" if [ -z "$CORE_COLLECTOR" ] then CORE_COLLECTOR="makedumpfile -c --message-level 1 -d 31" else if [ "${CORE_COLLECTOR%%[[:blank:]]*}" != "makedumpfile" ] then echo "Warning: specifying a non-makedumpfile core collector, you will have to recover the vmcore manually." fi fi CORE_COLLECTOR=`echo $CORE_COLLECTOR | sed -e's/\(^makedumpfile\)\(.*$\)/\1 -F \2/'` emit "$CORE_COLLECTOR /proc/vmcore | dd of=$DUMP_TARGET bs=512 >> /tmp/dd_progress_file 2>&1" emit "exitcode=\$?" emit "if [ \$exitcode == 0 ]" emit "then" emit " echo -e \"\\\033[0JSaving core complete\"" emit "fi" emit "blockdev --flushbufs $DUMP_TARGET" make_trace_mem "After dumping vmcore" 1:shortmem 2+:mem 3+:slab if [ -x "$KDUMP_POST" ]; then emit "$KDUMP_POST \$exitcode" fi emit "[ \$exitcode == 0 ] && $FINAL_ACTION" ;; nfs|nfs4|ssh) #build an /etc/passwd for scp to work properly grep "^root" /etc/passwd > $MNTIMAGE/etc/passwd # bring up the network emit_network if [ -n "$OFF_SUBNET" ] then # we are going to a different subnet lhost=`echo $OFF_SUBNET|awk '{print $7}'|head -n 1` else # we are on the same subnet lhost=`/sbin/ip route get to $remoteip 2>&1 |awk '{print $5}'|head -n 1` fi emit "echo Saving to remote location $DUMP_TARGET" if [ -z "`echo $DUMP_TARGET|grep @`" ]; then #NFS path if [ "$USING_METHOD" = "nfs4" ] then prepare_nfs4 fi #test nfs mount and directory creation rlocation=`echo $DUMP_TARGET | sed 's/.*:/'"$remoteip"':/'` tmnt=`mktemp -dq` kdump_chk "mount -t $USING_METHOD -o nolock -o tcp $rlocation $tmnt" \ "Bad NFS mount $DUMP_TARGET" kdump_chk "mkdir -p $tmnt/$SAVE_PATH" "Read only NFS mount $DUMP_TARGET" kdump_chk "touch $tmnt/$SAVE_PATH/testfile" "Read only NFS mount $DUMP_TARGET" kdump_chk "rm -f $tmnt/$SAVE_PATH/testfile" "Read only NFS mount $DUMP_TARGET" tdir=`mktemp -dqp $tmnt/$SAVE_PATH` rc=$? available_size=$(df -P $tdir | tail -1 | tr -s ' ' ':' | cut -d: -f5) rm -rf $tdir umount -f $tmnt if [ $? != 0 ]; then rmdir $tmnt echo "Cannot unmount the temporary directory" cleanup_and_exit 1 fi rm -rf $tmnt if [ $rc != "0" ]; then echo "Cannot create directory in $DUMP_TARGET: $SAVE_PATH" cleanup_and_exit 1 fi if [ -z "$CORE_COLLECTOR" ]; then CORE_COLLECTOR="makedumpfile -c --message-level 1 -d 31" fi #check for available size is greater than $memtotal if [ $available_size -lt $memtotal ]; then echo "Warning: There might not be enough space to save a vmcore." echo " The size of $DUMP_TARGET should be greater than $memtotal kilo bytes." fi #setup nfs case if [ -n "$KDUMP_PRE" ] then emit "$KDUMP_PRE" emit "if [ \$? -ne 0 ]" emit "then" emit " echo kdump_pre script exited with non-zero status" emit " $FINAL_ACTION" emit "fi" fi mkdir -p $MNTIMAGE/mnt if [ "$USING_METHOD" = "nfs4" ] then emit "rpcbind" emit "[ ! -d /var/lib/nfs/rpc_pipefs/nfs ] && mount -t rpc_pipefs rpc_pipefs /var/lib/nfs/rpc_pipefs" emit "rpc.statd && rpc.idmapd" #the mount in busybox may not support NFS4 emit "/sbin/mount.nfs4 $rlocation /mnt -o nolock" else emit "mount -t $USING_METHOD -o nolock -o tcp $rlocation /mnt" fi emit "exitcode=\$?" emit "if [ \$exitcode -eq 0 ]" emit "then" emit " mkdir -p /mnt/$SAVE_PATH/$lhost-\$DATE" emit " exitcode=\$?" emit " if [ \$exitcode -eq 0 ]" emit " then" # Save vmcore-dmesg.txt emit " DMESG_PATH=/mnt/$SAVE_PATH/$lhost-\$DATE/" emit " save_vmcore_dmesg_fs ${DMESG_COLLECTOR} \${DMESG_PATH}" # Save vmcore emit " VMCORE=/mnt/$SAVE_PATH/$lhost-\$DATE/vmcore" emit " export VMCORE" emit " display_mem_usage" make_trace_mem " Before dumping vmcore" 1:shortmem 2+:mem 3+:slab emit " monitor_cp_progress \$VMCORE-incomplete &" emit " $CORE_COLLECTOR /proc/vmcore \$VMCORE-incomplete " emit " exitcode=\$?" emit " if [ \$exitcode -eq 0 ]" emit " then" emit " mv \$VMCORE-incomplete \$VMCORE" emit " echo -e \"\\\033[0JSaving core complete\"" emit " fi" emit " umount -f /mnt" emit " fi" emit "fi" make_trace_mem " After dumping vmcore" 1:shortmem 2+:mem 3+:slab if [ -x "$KDUMP_POST" ]; then emit "$KDUMP_POST \$exitcode" fi emit "[ \$exitcode -eq 0 ] && $FINAL_ACTION" else #SSH path #rebuild $DUMP_TARGET replacing machine name with ip address if [ -n "$CORE_COLLECTOR" ] then CORE_COLLECTOR=`echo $CORE_COLLECTOR | sed -e's/\(^makedumpfile\)\(.*$\)/\1 -F \2/'` else CORE_COLLECTOR="makedumpfile -F -c --message-level 1 -d 31" fi bin="$bin /usr/bin/ssh /usr/bin/scp" rlocation=`echo $DUMP_TARGET|sed 's/@.*/@'"$rhost"'/'` #test ssh path and directory creation s_opts="-i $SSH_KEY_LOCATION -o BatchMode=yes" kdump_chk "ssh -q $s_opts $rlocation mkdir -p $SAVE_PATH /dev/null" emit "ssh -q $s_opts $rlocation mkdir $SAVE_PATH/$lhost-\$DATE" # Save vmcore-dmesg.txt emit "DMESG_PATH=$SAVE_PATH/$lhost-\$DATE/" emit "save_vmcore_dmesg_ssh ${DMESG_COLLECTOR} \${DMESG_PATH} \"${s_opts}\" ${rlocation}" # Save vmcore emit "VMCORE=$SAVE_PATH/$lhost-\$DATE/vmcore" emit "export VMCORE" emit "display_mem_usage" make_trace_mem "Before dumping vmcore" 1:shortmem 2+:mem 3+:slab emit "monitor_scp_progress $rlocation $SAVE_PATH/$lhost-\$DATE/vmcore-incomplete &" # We need to restrict the use of core_collector here, if # its not makedumpfile, we need to ignore it as scp # requires that core_collector dump to stdout if [ "${CORE_COLLECTOR%%[[:blank:]]*}" == "makedumpfile" ] then emit "$CORE_COLLECTOR /proc/vmcore | ssh $s_opts $rlocation \"dd of=$SAVE_PATH/$lhost-\$DATE/vmcore-incomplete\"" else emit "$CORE_COLLECTOR -q $s_opts /proc/vmcore $rlocation:\$VMCORE-incomplete" fi emit "exitcode=\$?" emit "if [ \$exitcode == 0 ]" emit "then" if [ -z "$CORE_COLLECTOR" ] || [ "${CORE_COLLECTOR%%[[:blank:]]*}" != "makedumpfile" ] then emit " ssh -q $s_opts $rlocation mv \$VMCORE-incomplete \$VMCORE" else emit " ssh -q $s_opts $rlocation mv \$VMCORE-incomplete \$VMCORE.flat" fi emit " echo -e \"\\\033[0JSaving core complete\"" emit "fi" make_trace_mem "After dumping vmcore" 1:shortmem 2+:mem 3+:slab if [ -x "$KDUMP_POST" ]; then emit "$KDUMP_POST \$exitcode" fi emit "[ \$exitcode -eq 0 ] && $FINAL_ACTION" fi ;; *) #test filesystem and directory creation tmnt=`mktemp -dq` kdump_chk "mount -t $DUMP_FSTYPE $DUMP_TARGET $tmnt" "Bad mount point $DUMP_TARGET" mkdir -p $tmnt/$SAVE_PATH tdir=`mktemp -dqp $tmnt/$SAVE_PATH` rc=$? available_size=$(df $tdir | tail -1 | tr -s ' ' ':' | cut -d: -f4) rm -rf $tdir umount $tmnt if [ $? != 0 ]; then rmdir $tmnt echo "Cannot unmount the temporary directory" cleanup_and_exit 1 fi rm -rf $tmnt if [ $rc != "0" ]; then echo "Cannot create directory in $DUMP_TARGET: $SAVE_PATH" cleanup_and_exit 1 fi #check for available size is greater than $memtotal if [ $available_size -lt $memtotal ]; then echo "Warning: There might not be enough space to save a vmcore." echo " The size of $DUMP_TARGET should be greater than $memtotal kilo bytes." fi #setup filesystem case if [ -n "$KDUMP_PRE" ] then emit "$KDUMP_PRE" emit "if [ \$? -ne 0 ]" emit "then" emit " echo kdump_pre script exited with non-zero status" emit " $FINAL_ACTION" emit "fi" fi mkdir -p $MNTIMAGE/mnt touch $MNTIMAGE/etc/mtab if [ -z "$CORE_COLLECTOR" ]; then CORE_COLLECTOR="makedumpfile -c --message-level 1 -d 31" fi emit "echo Saving to the local filesystem $DUMP_TARGET" emit "DUMPDEV=$DUMP_TARGET" emit "IS_LABEL=\`echo \$DUMPDEV | grep LABEL\`" emit "IS_UUID=\`echo \$DUMPDEV | grep UUID\`" emit "if [ -n \"\$IS_LABEL\" -o -n \"\$IS_UUID\" ] " emit "then" emit " DUMPDEV=\`findfs \"\$DUMPDEV\"\`" emit "fi" if [ "$DUMP_FSTYPE" = "btrfs" ] ; then emit "btrfsck \$DUMPDEV" emit "if [ \$? != 0 ]" emit "then" emit " echo btrfsck \$DUMPDEV failed. Executing default action" handle_default_action emit "fi" elif [ "$DUMP_FSTYPE" = "xfs" ] ; then emit "# xfs does not need fsck" else emit "fsck.$DUMP_FSTYPE -p \$DUMPDEV" emit "if [ \$? -gt 1 ]" emit "then" emit " echo fsck.$DUMP_FSTYPE \$DUMPDEV failed. Executing default action" handle_default_action emit "fi" fi emit "mount -t $DUMP_FSTYPE \$DUMPDEV /mnt" emit "if [ \$? == 0 ]" emit "then" emit " mkdir -p /mnt/$SAVE_PATH/127.0.0.1-\$DATE" emit " VMCORE=/mnt/$SAVE_PATH/127.0.0.1-\$DATE/vmcore" emit " export VMCORE" emit " display_mem_usage" make_trace_mem " Before dumping vmcore" 1:shortmem 2+:mem 3+:slab if [ "$CORE_COLLECTOR" == "cp" ]; then emit " monitor_cp_progress \$VMCORE-incomplete &" fi # Save vmcore-dmesg emit " DMESG_PATH=/mnt/$SAVE_PATH/127.0.0.1-\$DATE/" emit " save_vmcore_dmesg_fs ${DMESG_COLLECTOR} \${DMESG_PATH}" # Save vmcore emit " $CORE_COLLECTOR /proc/vmcore \$VMCORE-incomplete " emit " exitcode=\$?" emit " if [ \$exitcode == 0 ]" emit " then" emit " mv \$VMCORE-incomplete \$VMCORE" emit " echo -e \"\\\033[0JSaving core complete\"" emit " fi" emit " sync" make_trace_mem " After dumping vmcore" 1:shortmem 2+:mem 3+:slab if [ -x "$KDUMP_POST" ]; then emit " $KDUMP_POST \$exitcode" fi emit " umount /mnt" emit " if [ \$exitcode == 0 ]" emit " then" emit " $FINAL_ACTION" emit " fi" emit "fi" ;; esac #now handle the default action handle_default_action #find the shared libraries. this snippet taken from kboot TEMPLDCFG=`mktemp` for lib in `ls /etc/ld.so.conf.d/* 2>/dev/null | grep -v kernelcap` do echo "include " $lib >> $TEMPLDCFG done /sbin/ldconfig -f $TEMPLDCFG -N kdump_libs=`for n in $bin; do ldd "$n" 2>/dev/null | tr -s '\011' ' ' | sed 's/.*=> *//;s/^ *//;/ *(0x.*)/s///p;d' done | sort | uniq | sed '/^ *$/d'` rm -f $TEMPLDCFG if [ -f "$FIPS_FILE" ]; then _fips_mode=$(cat $FIPS_FILE) [ "$_fips_mode" -eq 1 ] && setup_fips fi #copy the binaries and their shared libraries to the archive for n in $bin $kdump_libs $k_extras $fips_hmac; do mkdir -p $MNTIMAGE/`dirname $n` if [ -h $MNTIMAGE/$n ]; then rm -f $MNTIMAGE/$n fi if [ -h $n ]; then _real=$(readlink -f "$n") mkdir -p $MNTIMAGE/`dirname $_real` cp $_real $MNTIMAGE/$_real ln -sfn $(convert_abs_rel $n $_real) $MNTIMAGE/$n else cp $n $MNTIMAGE/$n fi done fi chmod +x $RCFILE umask 0066 (cd $MNTIMAGE; findall . | cpio --quiet -c -o) >| $IMAGE || cleanup_and_exit 1 if [ -n "$compress" ]; then gzip -9 < $IMAGE >| $target || rc=1 else cp -a $IMAGE $target || rc=1 fi rm -rf $MNTIMAGE $IMAGE $TMPDISKLIST if [ -n "$MNTPOINT" ]; then rm -rf $MNTPOINT ; fi sync && sync exit $rc