Bug 465361

Summary: mkdumprd doesn't handle raid5 properly
Product: Red Hat Enterprise Linux 5 Reporter: Doug Chapman <dchapman>
Component: kexec-toolsAssignee: Neil Horman <nhorman>
Status: CLOSED ERRATA QA Contact: Martin Jenner <mjenner>
Severity: high Docs Contact:
Priority: high    
Version: 5.3CC: mgahagan, qcai, riek
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
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Clone Of: Environment:
Last Closed: 2009-01-20 20:59:04 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
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Description Flags
patch to correct raid personality for raid5
none
updated patch to handle raid 456 none

Description Doug Chapman 2008-10-02 21:31:07 UTC 
Description of problem:
when a kdump initrd is built on a system that boots off of raid5 it fails with:

No module raid5 found for kernel 2.6.18-117.el5, aborting.
Failed to run mkdumprd


that is because it appears to be looking for a module named raid5.ko but it is named raid456.ko.  


Version-Release number of selected component (if applicable):
kexec-tools-1.102pre-44.el5

How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info:
Comment 1 Neil Horman 2008-10-03 12:40:27 UTC 
Created attachment 319356 [details]
patch to correct raid personality for raid5

This should fix it.  Please confirm and I'll check it in as soon as I can.  Thanks!
Comment 2 Doug Chapman 2008-10-03 15:04:55 UTC 
Created attachment 319374 [details]
updated patch to handle raid 456

Neil,

I found a couple issues with your patch.  There are a couple different paths where it was trying to find a module named raid5.ko.  I moved this to a point that covers both.  Also, your patch converted any raid level to raid456 including raid 0, 1 and 01 which each have their own modules.

I tested this on my ia64 system with a raid5 root device.  I want to test at least on other raid level before we call this done.  I am planning on doing a raid0 install test case later today anyway so this is no extra work.
Comment 3 Doug Chapman 2008-10-03 17:30:43 UTC 
This latest patch works with a raid0 root also so we should be OK now.
Comment 4 Neil Horman 2008-10-03 17:46:17 UTC 
looks good, I'll check it in as soon as it gets the acks it needs.
Comment 8 errata-xmlrpc 2009-01-20 20:59:04 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-2009-0105.html