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