Bug 548274

Summary: can't boot from hard disk if typing is root=/dev/* on grub
Product: [Fedora] Fedora Reporter: Freax <holmes86>
Component: dracutAssignee: Harald Hoyer <harald>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 12CC: harald
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: 004-4.fc12 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2010-01-28 00:54:07 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Freax 2009-12-17 03:13:41 UTC
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:

Comment 1 Fedora Update System 2010-01-26 10:49:31 UTC
dracut-004-4.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/dracut-004-4.fc12

Comment 2 Fedora Update System 2010-01-27 01:06:34 UTC
dracut-004-4.fc12 has been pushed to the Fedora 12 testing repository.  If problems still persist, please make note of it in this bug report.
 If you want to test the update, you can install it with 
 su -c 'yum --enablerepo=updates-testing update dracut'.  You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F12/FEDORA-2010-1088

Comment 3 Fedora Update System 2010-01-28 00:51:55 UTC
dracut-004-4.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.