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~ /usr/lib/dracut/modules.d/95rootfs-block

Name	Size	Perms	Modified	Actions
[ .. / .. ]
block-genrules.sh	469 B	-rwxr-xr-x	2018-10-08 13:38:33	Edit Del
module-setup.sh	2.25 KB	-rwxr-xr-x	2018-10-08 13:38:33	Edit Del
mount-root.sh	4.32 KB	-rwxr-xr-x	2018-10-08 13:38:33	Edit Del
parse-block.sh	924 B	-rwxr-xr-x	2018-10-08 13:38:33	Edit Del
rootfallback.sh	1.21 KB	-rwxr-xr-x	2018-10-08 13:38:33	Edit Del

Editing: rootfallback.sh (1.21 KB)

#!/bin/sh

type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh

for root in $(getargs rootfallback=); do
    case "$root" in
        block:LABEL=*|LABEL=*)
            root="${root#block:}"
            root="$(echo $root | sed 's,/,\\x2f,g')"
            root="/dev/disk/by-label/${root#LABEL=}"
            ;;
        block:UUID=*|UUID=*)
            root="${root#block:}"
            root="${root#UUID=}"
            root="$(echo $root | tr "[:upper:]" "[:lower:]")"
            root="/dev/disk/by-uuid/${root#UUID=}"
            ;;
        block:PARTUUID=*|PARTUUID=*)
            root="${root#block:}"
            root="${root#PARTUUID=}"
            root="$(echo $root | tr "[:upper:]" "[:lower:]")"
            root="/dev/disk/by-partuuid/${root}"
            ;;
        block:PARTLABEL=*|PARTLABEL=*)
            root="${root#block:}"
            root="/dev/disk/by-partlabel/${root#PARTLABEL=}"
            ;;
    esac

    if ! [ -b "$root" ]; then
        warn "Could not find rootfallback $root"
        continue
    fi

    if mount "$root" /sysroot; then
        info "Mounted rootfallback $root"
        exit 0
    else
        warn "Failed to mount rootfallback $root"
        exit 1
    fi
done

[ -e "$job" ] && rm -f "$job"