Bug 215739

Summary:	Kernel panic on first boot after install.
Product:	[Fedora] Fedora	Reporter:	Dave Rogers <daver>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6	CC:	jonstanley, wtogami
Target Milestone:	---
Target Release:	---
Hardware:	i686
OS:	Linux
Whiteboard:
Fixed In Version:	FC6	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2008-01-08 19:39:16 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:
Bug Depends On:
Bug Blocks:	427887

Description Dave Rogers 2006-11-15 15:16:59 UTC

Description of problem: When rebooting for the first time after successfully
installing FC6 (i386) I get a kernel panic. The messages indicate that it tried
to remount / cannot find any of the directories (/proc, swap, ...). This system
was (and is now again) running FC5 fine. I also tried installing x86_64 version
and got the same results. I booted the rescue CD and was able to swap root to it OK.

System is an Athlon 64 X2 4600 on an Asus A8N-SLI Delux mobo.


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


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Comment 1 Dave Rogers 2006-11-15 16:00:13 UTC

Appears to be similar to some other reports: 204458,205650,208617)

Comment 2 Dave Rogers 2006-11-17 20:59:01 UTC

This mobo has 4 IDE ports, 4 SATA ports and 4 SATA RAID ports. I have two 200GB
SATA drives and 2 300 GB sata drives. No matter which order I plug the drives in
to either the SATA or the SATA RAID ports it always choses one of the 300 Gb
drives as /dev/sda. 

It is obvious that there was a big change between FC5 and FC6 in how the disks
are mapped. I previously had this system configured with the 2 200 GB disks as
SATA and the 2 300GB disks as a RAID 1 (stripped) SATA RAID. SATA 0 was mapped
as /dev/sda under FC4 and FC5. Now it always gets mapped as /dev/sdc under FC6.
It appears that FC6 cannot boot from a root or boot filesystem on /dev/sdc. So
when I install FC6 in the system with the 300GB disks installed it panics on
first boot after the install. If I remove the 300GB disks, install FC6 and then
all is fine. 

So I gues the new algorithm is: "which ever disk is the largest becomes /dev/sda
regardless of how they are connected".

Comment 3 Jon Stanley 2008-01-08 01:49:50 UTC

(This is a mass-update to all current FC6 kernel bugs in NEW state)

Hello,

I'm reviewing this bug list as part of the kernel bug triage project, an attempt
to isolate current bugs in the Fedora kernel.

http://fedoraproject.org/wiki/KernelBugTriage

I am CC'ing myself to this bug, however this version of Fedora is no longer
maintained.

Please attempt to reproduce this bug with a current version of Fedora (presently
Fedora 8). If the bug no longer exists, please close the bug or I'll do so in a
few days if there is no further information lodged.

Thanks for using Fedora!

Comment 4 Dave Rogers 2008-01-08 19:14:32 UTC

I believe this was actually fixed in FC6