Bug 167079

Summary:	xen domain can't read drives,Cannot open root device
Product:	[Fedora] Fedora	Reporter:	Ted Kaczmarek <tedkaz>
Component:	xen	Assignee:	Rik van Riel <riel>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	4
Target Milestone:	---
Target Release:	---
Hardware:	athlon
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2005-10-02 03:56:02 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 Ted Kaczmarek 2005-08-30 01:32:42 UTC

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.10) Gecko/20050720 Fedora/1.0.6-1.1.fc4 Firefox/1.0.6

Description of problem:
VFS: Cannot open root device "/dev/sda1" or unknown-block(0,0)
and
VFS: Cannot open root device "/dev/hda1" or unknown-block(0,0)

Version-Release number of selected component (if applicable):
kernel-xenU-2.6.12-1.1447_FC4

How reproducible:
Always

Steps to Reproduce:
1.Install xen on tyan 2462, 2 scsi, 2 ide scsi and 2 ide cd's
2.Try to start vm
3.
  

Actual Results:  VFS: Cannot open root device

Expected Results:  The vm should have found one of the drives.

Additional info:

kernel-xenU-2.6.12-1.1447_FC4
kernel-xen0-2.6.12-1.1447_FC4
xen-2-20050823

I have had simillar issues in the past with anaconda on this box as well, I need to get a new drive soon anyway, when I get it I will try to test with only 1 scsi drive.

Comment 1 Ted Kaczmarek 2005-08-30 15:38:49 UTC

I rebuilt the xend package using the spec file and patch from the rpm and the
tar ball at xen-source it plays nicer now.
I had to make a few changes in the %files section of the spec file some chnages.

Any explanation for the non dev crowd for this?

Comment 2 Rik van Riel 2005-08-30 16:04:17 UTC

Upstream xen-unstable is very aptly named.  It looks like there's always
something broken, and always something else ;(

Any time I resync to a different upstream Xen snapshot I'm essentially playing
russian roulette ;)

Comment 3 Ted Kaczmarek 2005-08-30 16:35:15 UTC

I will hit the xen-devel list for now, their is way too many things going on for
one bug report in bugzilla. If I get a build that plays nice on my SMP FC4 will
update.

Comment 4 Ted Kaczmarek 2005-10-02 03:56:02 UTC

More recent xen changeset's are behaving much better.