[linux-lvm] Problem with LVM2 and device-mapper

Patrick Lawrence (LVM List) 5e67ea4d1e39ed0d23e6 at patsoffice.com
Tue Oct 18 19:50:57 UTC 2005


I am using CentOS 4 and just did an upgrade from 4.1 to 4.2 on my x86_64
home server.  After a reboot, one of my vol groups stopped working.
It's a volume group spread across 2 disks and when I try to activate
that volgroup I get the following:

[root at hetfield mapper]# vgchange -ay VolGroup02
   device-mapper ioctl cmd 9 failed: Invalid argument
   Couldn't load device 'VolGroup02-DVD'.
   1 logical volume(s) in volume group "VolGroup02" now active

and the relevant portion of the /var/log/messages has:

Oct 17 08:45:07 hetfield kernel: device-mapper: dm-linear: Device lookup
Oct 17 08:45:07 hetfield kernel: device-mapper: error adding target to

My other two volgroups are working fine.  It's just this third one that 
has problems.

I did quite a bit of googling yesterday, but I didn't come up with much 
although I have to confess that I know jack about the device mapper...

Is there anything I can provide to diagnose the problem further?  Since
CentOS tracks RHEL4 very closely, I suspect this affects RHEL4 as well.



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