Bug 562514

Summary: Kernel panic on boot since new grubby (and newly installed kernels)
Product: [Fedora] Fedora Reporter: darrell pfeifer <darrellpf>
Component: grubbyAssignee: Peter Jones <pjones>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 13CC: chepioq, leigh123linux, pjones, robatino, zaitcev
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2011-06-02 12:52:38 EDT Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Description darrell pfeifer 2010-02-07 00:56:13 EST
Description of problem:

Installed grubby 7.0.10. Afterwards I installed kernel 2.6.33-0.36.rc7.git0.fc13.

On boot message appears:

Kernel panic - not syncing VFS : Unable to mount root fs on unknown-block(0,0)

I installed 2.6.33-0.40.rc7.git0.fc13 afterwards and received the same message.

I am currently running 2.6.33-0.26.rc6.git1.fc13.x86_64 without problems. Usually if a kernel this late in the rc process works I don't have trouble with newer ones, so I suspect this is due to grubby rather than the kernels.

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


Additional Information

The sizes of all the files in /boot are comparable, particularly the initramfs ones.
Comment 1 leigh scott 2010-02-07 17:15:32 EST
The initrd line is completely missing in grub.conf after updating my kernel today.
Add the initrd line and the new kernel boots up.

Comment 2 dominique 2010-02-08 01:08:27 EST
Same problem here with kernel-2.6.33-0.40.rc7.git0.fc13.x86_64, I have the grubby-7.0.10-1.fc13.x86_64 installed and the initramfs-2.6.33-0.40.rc7.git0.fc13.x86_64.img is in my /boot.
On boot I have this message:

Kernel panic-not syncing:VFS: Unable to mount root fs on unknow-block(0,0) 

In my grub.conf I replace root=UUID=... to root=/dev/sd... ,and that work.
Comment 3 Pete Zaitcev 2010-02-11 18:48:12 EST
grubby-7.0.12-1.fc13.x86_64 still fails.
It adds /boot where it should not be, so:

[root@hitlain zaitcev]# more /boot/grub/grub.conf
title Fedora (2.6.33-0.40.rc7.git0.fc13.x86_64)
        root (hd0,0)
        kernel /vmlinuz-2.6.33-0.40.rc7.git0.fc13.x86_64 ro root=/dev/mapper/Vol
Group00-FN selinux=0 SYSFONT=latarcyrheb-sun16 LANG=en_US.UTF-8 KEYTABLE=us rd_p
lytheme=text nomodeset
        initrd /boot/initramfs-2.6.33-0.40.rc7.git0.fc13.x86_64.img
title Fedora (2.6.33-0.27.rc6.git1.fc13.x86_64)
        root (hd0,0)
        kernel /vmlinuz-2.6.33-0.27.rc6.git1.fc13.x86_64 ro root=/dev/mapper/Vol
Group00-FN selinux=0 SYSFONT=latarcyrheb-sun16 LANG=en_US.UTF-8 KEYTABLE=us rd_p
lytheme=text nomodeset
        initrd /initramfs-2.6.33-0.27.rc6.git1.fc13.x86_64.img

The /initramfs-foo works but the newly-added /boot/initramfs-bar does not.
If I remove the "/boot" string, the 2.6.33-0.40.rc7.git0.fc13.x86_64
boots ok (no need to re-run dracut).
Comment 4 Bug Zapper 2010-03-15 10:26:10 EDT
This bug appears to have been reported against 'rawhide' during the Fedora 13 development cycle.
Changing version to '13'.

More information and reason for this action is here:
Comment 5 Bug Zapper 2011-06-02 12:39:43 EDT
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