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Bug 824928

Summary:	boot fails on EFI machine after installed when booting in EFI mode from optical media
Product:	Red Hat Enterprise Linux 6	Reporter:	Mike Burns <mburns>
Component:	ovirt-node	Assignee:	Mike Burns <mburns>
Status:	CLOSED ERRATA	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	medium	Docs Contact:
Priority:	urgent
Version:	6.2	CC:	acathrow, bsarathy, cshao, ddumas, gouyang, jboggs, jfeeney, leiwang, mburns, mishu, mjenner, moli, ovirt-maint, pjones, pstehlik, ricardo.arguello, sgordon, syeghiay, the.ridikulus.rat, tvvcox, ycui
Target Milestone:	rc
Target Release:	6.3
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	ovirt-node-2.3.0-9.el6	Doc Type:	Bug Fix
Doc Text:	When the Hypervisor configures the boot menu for EFI it extracts the CDLABEL from the isolinux.cfg file. The entry in the file contains a period ('.'), which is not matched correctly by the regular expression used to extract the CDLABEL. As a result the kernel parameters generated contained an invalid CDLABEL, resulting in a kernel panic. The regular expression used to extract the CDLABEL has been updated to do so correctly.	Story Points:	---
Clone Of:	749621	Environment:
Last Closed:	2012-07-19 14:13:10 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:	747102, 749621, 761540
Bug Blocks:	729698, 773069, 773650, 773651, 773677, 773696

Description Mike Burns 2012-05-24 16:04:18 UTC

+++ This bug was initially created as a clone of Bug #749621 +++

This only happens with official image builds.  On boot, a kernel panic happens almost immediately.

Root Cause:

When configuring the boot menu for EFI, we extract the CDLABEL from the regular isolinux.cfg.  The cdlabel for official builds contains a '.' which our automated builds do not.  Because of this '.', the extraction broke causing the commandline to include root=live:CDLABEL= which causes an immediate panic.

Comment 6 Guohua Ouyang 2012-06-01 11:58:32 UTC

verified on 6.3-20120531.0 build, 
1. can reproduce on 6.3-20120523.1, boot will run into kernel panic.

2. tested 6.3-20120531.0 with EFI mode, boot from the iso image successfully and after install finished, rhevh boot normal and can login also.

Comment 7 Stephen Gordon 2012-06-14 18:58:54 UTC

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
When the Hypervisor configures the boot menu for EFI it extracts the CDLABEL from the isolinux.cfg file. The entry in the file contains a period ('.'), which is not matched correctly by the regular expression used to extract the CDLABEL. As a result the kernel parameters generated contained an invalid CDLABEL, resulting in a kernel panic. The regular expression used to extract the CDLABEL has been updated to do so correctly.

Comment 9 errata-xmlrpc 2012-07-19 14:13:10 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2012-0741.html