Description of problem:
I want to use hard disk boot fedora 12.So I copy LiveOS,vmlinuz0 and initrd0.img of fedora 12 to hard disk.Then in GRUB,I typed the following:
root (hd0,0)
kernel /vmlinuz0 root=/dev/sda1 liveimg
initrd /initrd0.img

but fedora 12 can't boot.I uncompress the initrd0.img.Then I found cmdline/30parse-dmsquash-live.sh about handling "liveroot" as following:

if getarg liveimg; then
    liveroot="live:$root"
fi

if [ "${root%%:*}" = "live" ] ; then
    liveroot=$root
fi

[ "${liveroot%%:*}" = "live" ] || return

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 ;;
    /dev/*)
    root="live:${root}"
        rootok=1 ;;

As executed liveroot="live:$root",but "case" sentence haven't about "live:/dev/*".I think this is reason that don't boot from hard disk.So I modify to the following:

live:/dev/*|/dev/*)

and generate initrd0.img again.Now it can boot from hard disk.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.Copy vmliunz0,initrd0.img and LiveOS to hard disk.
2.Type root=/dev/* liveimg,not LABEL or UUID
3.
  
Actual results:
can't boot from hard disk

Expected results:
can boot from hard disk

Additional info: