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Bug 596804 - The kernel module for dm-multipath is not loaded in 6.0-20100511.3
Summary: The kernel module for dm-multipath is not loaded in 6.0-20100511.3
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: anaconda
Version: 6.0
Hardware: All
OS: Linux
urgent
urgent
Target Milestone: beta
: ---
Assignee: Peter Jones
QA Contact: Release Test Team
URL:
Whiteboard:
Depends On: 591644
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-05-27 14:42 UTC by Ben Marzinski
Modified: 2010-11-10 19:46 UTC (History)
22 users (show)

Fixed In Version: anaconda-13.21.50-1
Doc Type: Bug Fix
Doc Text:
Clone Of: 591644
Environment:
Last Closed: 2010-11-10 19:46:13 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
update image for testing (488.79 KB, application/x-gzip)
2010-05-27 17:41 UTC, Peter Jones 		no flags Details
View All

Comment 3 Chris Lumens 2010-05-27 14:59:53 UTC 
What is being asked of anaconda here?
Comment 4 Peter Jones 2010-05-27 17:41:13 UTC 
Created attachment 417319 [details]
update image for testing

Barry, can you try again with the attached update image, as well as adding:

ignoredisk --interactive

to your ks.cfg ?
Comment 5 Barry Donahue 2010-05-27 17:49:53 UTC 
(In reply to comment #4)
> Created an attachment (id=417319) [details]
> update image for testing
> 
> Barry, can you try again with the attached update image, as well as adding:
> 
> ignoredisk --interactive
> 
> to your ks.cfg ?    

   Will this image work on an Intel based system? The system I have been using is Intel.
Comment 6 Peter Jones 2010-05-28 15:37:07 UTC 
It should work fine either way.
Comment 7 Ben Marzinski 2010-05-28 20:17:53 UTC 
In response to Comment #3, I just cloned the bug so Peter Jones could have his own bug to use for his anaconda patch. I believe that it always creates a multipath.conf file, so that the kernel module is always loaded.
Comment 8 David Cantrell 2010-06-01 13:31:33 UTC 
(In reply to comment #5)
> (In reply to comment #4)
> > Created an attachment (id=417319) [details] [details]
> > update image for testing
> > 
> > Barry, can you try again with the attached update image, as well as adding:
> > 
> > ignoredisk --interactive
> > 
> > to your ks.cfg ?    
> 
>    Will this image work on an Intel based system? The system I have been using
> is Intel.    

Yes.  amd64 == x86_64
Comment 11 Alexander Todorov 2010-07-19 14:04:11 UTC 
Tested with anaconda 13.21.58 in snap #8. The @storage-client-multipath
group was selected (device-mapper-multipath is in this group). 

After install:
# multipath -ll
Jul 19 09:59:15 | /etc/multipath.conf does not exist, blacklisting all devices.
Jul 19 09:59:15 | A sample multipath.conf file is located at
Jul 19 09:59:15 | /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf
Jul 19 09:59:15 | You can run /sbin/mpathconf to create or modify /etc/multipath.conf
Jul 19 09:59:15 | DM multipath kernel driver not loaded


Comment #7 says that anaconda should always be creating /etc/multipath.conf which in this case doesn't exist. Should this behavior be present on regular systems as well or only on systems with multipathed storage?
Comment 12 Alexander Todorov 2010-07-20 11:29:20 UTC 
Peter,
can you answer comment #11?
Comment 13 David Cantrell 2010-07-20 19:39:17 UTC 
(In reply to comment #11)
> Tested with anaconda 13.21.58 in snap #8. The @storage-client-multipath
> group was selected (device-mapper-multipath is in this group). 
> 
> After install:
> # multipath -ll
> Jul 19 09:59:15 | /etc/multipath.conf does not exist, blacklisting all devices.
> Jul 19 09:59:15 | A sample multipath.conf file is located at
> Jul 19 09:59:15 | /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf
> Jul 19 09:59:15 | You can run /sbin/mpathconf to create or modify
> /etc/multipath.conf
> Jul 19 09:59:15 | DM multipath kernel driver not loaded
> 
> 
> Comment #7 says that anaconda should always be creating /etc/multipath.conf
> which in this case doesn't exist. Should this behavior be present on regular
> systems as well or only on systems with multipathed storage?    

The /etc/multipath.conf file is only written out if we have devices of type dm-multipath.
Comment 14 Jan Stodola 2010-08-16 12:50:33 UTC 
Successfully installed on a multipath device, dm_multipath was loaded after restart:

[root@dhcp70-190 ~]# lsmod | grep dm_multipath
dm_multipath           18050  2 dm_round_robin
dm_mod                 76295  19 dm_mirror,dm_log,dm_multipath

[root@dhcp70-190 ~]# multipath -ll
mpatha (3600a0b800034867a000005cd47d96f66) dm-0 SGI,IS400
size=339G features='3 queue_if_no_path pg_init_retries 50' hwhandler='1 rdac' wp=rw
|-+- policy='round-robin 0' prio=6 status=active
| `- 1:0:0:3 sdb 8:16 active ready running
`-+- policy='round-robin 0' prio=1 status=enabled
  `- 0:0:0:3 sda 8:0  active ghost running

[root@dhcp70-190 ~]# ls -l /etc/multipath.conf 
-rw-r--r--. 1 root root 898 Aug 16 04:08 /etc/multipath.conf

[root@dhcp70-190 ~]# chkconfig --list multipathd
multipathd      0:off   1:off   2:on    3:on    4:on    5:on    6:off

[root@dhcp70-190 ~]# service multipathd status
multipathd (pid  1346) is running...

[root@dhcp70-190 ~]# pvs
  PV                   VG           Fmt  Attr PSize   PFree
  /dev/mapper/mpathap1 vg_dhcp70190 lvm2 a-   339.33g    0 
  /dev/sdc2            vg_dhcp70190 lvm2 a-   465.27g    0

Tested on build RHEL6.0-20100811.2 / Server / x86_64 with anaconda-13.21.74-1.el6. Moving to VERIFIED.
Comment 15 releng-rhel@redhat.com 2010-11-10 19:46:13 UTC 
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.
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