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#!/bin/sh
# live images are specified with
# root=live:backingdev
[ -z "$root" ] && root=$(getarg root=)
# support legacy syntax of passing liveimg and then just the base root
if getargbool 0 rd.live.image -d -y liveimg; then
liveroot="live:$root"
fi
if [ "${root%%:*}" = "live" ]; then
liveroot=$root
fi
[ "${liveroot%%:*}" = "live" ] || return 1
modprobe -q loop
case "$liveroot" in
live:LABEL=* | LABEL=* | live:UUID=* | UUID=* | live:PARTUUID=* | PARTUUID=* | live:PARTLABEL=* | PARTLABEL=*)
root="live:$(label_uuid_to_dev "${root#live:}")"
rootok=1
;;
live:CDLABEL=* | CDLABEL=*)
root="${root#live:}"
root="$(echo "$root" | sed 's,/,\\x2f,g;s, ,\\x20,g')"
root="live:/dev/disk/by-label/${root#CDLABEL=}"
rootok=1
;;
live:/*.[Ii][Ss][Oo] | /*.[Ii][Ss][Oo])
root="${root#live:}"
root="liveiso:${root}"
rootok=1
;;
live:/dev/*)
root="live:${root#live:}"
rootok=1
;;
live:/*.[Ii][Mm][Gg] | /*.[Ii][Mm][Gg])
[ -f "${root#live:}" ] && rootok=1
;;
live:nfs*)
rootok=1
;;
esac
[ "$rootok" = "1" ] || return 1
info "root was $liveroot, is now $root"
# make sure that init doesn't complain
[ -z "$root" ] && root="live"
wait_for_dev -n /dev/root
return 0
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