Hello, 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: <snip> [root@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 <snip> and the relevant portion of the /var/log/messages has: <snip> Oct 17 08:45:07 hetfield kernel: device-mapper: dm-linear: Device lookup failed Oct 17 08:45:07 hetfield kernel: device-mapper: error adding target to table <snip> 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. Regards, Pat _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
