Venkateswarara Jujjuri <firstname.lastname@example.org> -
SAN Booted MRG 1.2 Alpha on fully up-to-date RHEL 5.3 system. ...
and seeing issue with the multipath tools.
[root@elm9m86 ~]# uname -a
Linux elm9m86 2.6.31-rc5.3.el5rt #1 SMP PREEMPT RT Tue Aug 11 08:52:22 EDT 2009 x86_64 x86_64 x86_64
[root@elm9m86 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.3 (Tikanga)
[root@elm9m86 ~]# rpm -qa|grep mapper
[root@elm9m86 ~]# multipath -ll
DM multipath kernel driver version too old
------- Comment From email@example.com 2009-08-20 14:56 EDT-------
Looks like the following patch need to be ported.
Created attachment 358268 [details]
------- Comment on attachment From firstname.lastname@example.org 2009-08-21 14:09 EDT-------
I have ported and tested the community patch as mentioned in the comment#7.
The port was onto multipath-tools-0.4.7.rhel5.13 source (device-mapper-multipath-0.4.7-23.el5.src.rpm)
Could someone please verify whether jvrao's patch was applied to the multipath-tools and if we can close this bug?
------- Comment From email@example.com 2009-10-13 02:13 EDT-------
(In reply to comment #10)
> Could someone please verify whether jvrao's patch was applied to the
> multipath-tools and if we can close this bug?
Hi Any update on this? Is this into RHEL 5.4?
no update yet
Reassigning to Lana (documentation) so we can put a MRG 1.2 Release Note out for this (no way to get it into RHEL5.4 for MRG release).
Lana, we need to make sure that we have a Release Note documenting the bogus warning issued by the device-mapper-multipath tool for RHEL5 when booting the MRG v2 kernel.
------- Comment From firstname.lastname@example.org 2009-10-15 17:17 EDT-------
(In reply to comment #13)
> Reassigning to Lana (documentation) so we can put a MRG 1.2 Release Note out
> for this (no way to get it into RHEL5.4 for MRG release).
> Lana, we need to make sure that we have a Release Note documenting the bogus
> warning issued by the device-mapper-multipath tool for RHEL5 when booting the
> MRG v2 kernel.
I think it is more than a documentation issue. Warning is bogus alright but it fails the command. This goes to an extent, where one can't SAN boot the MRG 1.2 on RHEL5.4 based system. The workaround is to get the SRPM, apply the patch, replace /sbin/multipath and /sbin/multipath.static, install MRG 1.2 RPMS and then proceed.
I did not realize that the command failed, just thought it was a warning.
Reassigned to RHEL (per tcoughlin)
Do we have any pending update on this?
Reproduced this bug with kernel 22.214.171.124-rt29.45.el5rt, multipath 0.4.7-34.el5
Got the same error as customer.
device-mapper-multipath-0.4.7-39.el5 fixed this problem.
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.
The kernel driver of device-mapper multipath could appear to be old and SAN boot could fail, because the version testing of the driver was not correct. Version testing is now implemented correctly.
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.