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Diffstat (limited to 'files/90mgalive/mgalive-parse.sh')
-rwxr-xr-x | files/90mgalive/mgalive-parse.sh | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/files/90mgalive/mgalive-parse.sh b/files/90mgalive/mgalive-parse.sh new file mode 100755 index 0000000..cbe0a1b --- /dev/null +++ b/files/90mgalive/mgalive-parse.sh @@ -0,0 +1,51 @@ +#!/bin/sh +# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*- +# ex: ts=8 sw=4 sts=4 et filetype=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 -y liveimg; then + liveroot="live:$root" +fi + +if [ "${root%%:*}" = "live" ] ; then + liveroot=$root +fi + +[ "${liveroot%%:*}" = "live" ] || return + +modprobe -q loop + +case "$liveroot" in + live:LABEL=*|LABEL=*) \ + root="${root#live:}" + root="$(echo $root | sed 's,/,\\x2f,g')" + root="live:/dev/disk/by-label/${root#LABEL=}" + rootok=1 ;; + live:CDLABEL=*|CDLABEL=*) \ + root="${root#live:}" + root="$(echo $root | sed 's,/,\\x2f,g')" + root="live:/dev/disk/by-label/${root#CDLABEL=}" + rootok=1 ;; + live:UUID=*|UUID=*) \ + root="${root#live:}" + root="live:/dev/disk/by-uuid/${root#UUID=}" + rootok=1 ;; + live:/*.[Ii][Ss][Oo]|/*.[Ii][Ss][Oo]) + root="${root#live:}" + root="liveiso:${root}" + rootok=1 ;; + live:/dev/*) + rootok=1 ;; + live:/*.[Ii][Mm][Gg]|/*.[Ii][Mm][Gg]) + [ -f "${root#live:}" ] && rootok=1 ;; +esac +info "root was $liveroot, is now $root" + +# make sure that init doesn't complain +[ -z "$root" ] && root="live" + +#wait_for_dev /dev/mapper/live-rw |