#!/bin/bash # We depend on dm_mod being loaded [ "$1" = "-d" ] && echo dm # No point trying to support lvm if the binaries are missing which lvm >/dev/null 2>&1 || exit 1 . $dracutfunctions [[ $debug ]] && set -x is_lvm() { [[ $(get_fs_type /dev/block/$1) = LVM2_member ]]; } [[ $1 = '-h' ]] && { rootdev=$(find_root_block_device) if [[ $rootdev ]]; then # root lives on a block device, so we can be more precise about # hostonly checking check_block_and_slaves is_lvm "$rootdev" || exit 1 else # root is not on a block device, use the shotgun approach blkid | grep -q LVM2_member || exit 1 fi } exit 0