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Bug 645756

Summary: Impossible to boot relocatable kernel.
Product: Red Hat Enterprise Linux 5 Reporter: Jiri Kastner <jkastner>
Component: yabootAssignee: Jiri Skala <jskala>
Status: CLOSED ERRATA QA Contact: Martin Banas <mbanas>
Severity: urgent Docs Contact:
Priority: urgent    
Version: 5.6CC: aglotov, cperry, ddumas, jhutar, mbanas, plyons, rrakus, rvokal, syeghiay
Target Milestone: rcKeywords: ZStream
Target Release: ---   
Hardware: ppc64   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-07-21 07:06:06 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: 647777, 677498    
Attachments:
Description Flags
Patch allowing to boot relocatable kernels none

Description Jiri Kastner 2010-10-22 12:01:15 UTC 
Description of problem:
rhel6 -> rhel5 provisioning not working, because old yaboot doesn't recognize rhel6 kernel image as valid elf image.

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


How reproducible:
always on rhel5 ppc

Steps to Reproduce:
1. prepare rhel5 ppc machine and satellite-5.4 for provisioning ppc rhel6
2. update it
3. register rhel5 ppc to satellite
4. create kickstart
5. launch this kickstart
6. connect to ppc client console
7. rhel6 kickstart fails
8. boot to linux (boot: linux)
9. download rhel6 yaboot package and extract it and replace files from old yaboot
10. run 'ybin' and reboot again and let machine boot kickstart
11. kernel image is loaded and kickstart launched
  
Actual results:
Welcome
Welcome to yaboot version 1.3.13 (Red Hat 1.3.13-10.el5)
Enter "help" to get some basic usage information
boot: kick1287747852
Please wait, loading kernel...
/vmlinuz: Not a valid ELF image

Expected results:
boot: kick1287747852 
Please wait, loading kernel...
   Elf64 kernel loaded...
Loading ramdisk...
ramdisk loaded at 03600000, size: 30590 Kbytes
.....

Additional info:
Comment 1 Martin Banas 2010-10-22 12:07:37 UTC 
Roman,

Could you please tell us if booting RHEL6 kernel from RHEL5 yaboot should be supported?

Thanks.
Comment 2 Roman Rakus 2010-10-25 15:34:44 UTC 
Can you please try http://rrakus.fedorapeople.org/yaboot-1.3.13-11.el5.ppc.rpm ?
Comment 4 Roman Rakus 2010-10-26 11:11:44 UTC 
Ok. Let me do some magic with this bug.
Comment 5 Roman Rakus 2010-10-26 11:22:05 UTC 
Created attachment 455739 [details]
Patch allowing to boot relocatable kernels
Comment 7 RHEL Program Management 2010-10-26 12:07:07 UTC 
This request was evaluated by Red Hat Product Management for
inclusion in the current release of Red Hat Enterprise Linux.
Because the affected component is not scheduled to be updated in the
current release, Red Hat is unfortunately unable to address this
request at this time. Red Hat invites you to ask your support
representative to propose this request, if appropriate and relevant,
in the next release of Red Hat Enterprise Linux.
Comment 10 Roman Rakus 2010-10-29 12:20:25 UTC 
Patch commited.
Comment 15 errata-xmlrpc 2011-07-21 07:06:06 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-0993.html