#!/bin/bash # if there's no multipath binary, no go. which multipath >/dev/null 2>&1 || exit 1 [[ $1 = -d ]] && exit 0 . $dracutfunctions [[ $debug ]] && set -x is_mpath() { [ -e /sys/dev/block/$1/dm/uuid ] || return 1 [[ $(cat /sys/dev/block/$1/dm/uuid) =~ ^mpath- ]] && return 0 return 1 } rootdev=$(find_root_block_device) if [[ $rootdev ]]; then check_block_and_slaves is_mpath "$rootdev" && exit 0 fi exit 1