[SOLVED] How to mount a disk that had logical volumes in another machine?

brownwrap · 11-21-2013, 05:17 PM

Below find a typical fstab we have for our machines. This was the boot disk, but has since been moved to another machine. The disk has not been touched, so everything should still be there. My question is how do I mount it to see the original home directories that were is /users?

Code:

/dev/mapper/VolGroup00-LogVol01 /                       ext4    defaults        1 1
UUID=c31bdeb3-582f-4899-8dd1-646902cbbd29 /boot                   ext4    defaults        1 2
/dev/mapper/VolGroup00-LogVol02 /opt                    ext4    defaults        1 2
/dev/mapper/VolGroup00-LogVol03 /tmp                    ext4    defaults        1 2
/dev/mapper/VolGroup00-LogVol04 /users                  ext4    defaults        1 2
/dev/mapper/VolGroup00-LogVol05 /var                    ext4    defaults        1 2
/dev/mapper/VolGroup00-LogVol06 /var/log                ext4    defaults        1 2
/dev/mapper/VolGroup00-LogVol07 /var/log/audit          ext4    defaults        1 2

rknichols · 11-21-2013, 05:57 PM

If both machines were using volume group name "VolGroup00", then you will need to rename one of the volume groups so that they will not conflict. See the manpage for the vgrename command. If you want to rename the VG on the moved disk using a system that has its own "VolGroup00", then you will need to use UUID to identify the one you want to change. You can use the blkid command to find the UUIDs of physical volumes on the system.

For the future, it would be wise to have unique volume group names on all your machines. That will avoid this problem.

brownwrap · 11-21-2013, 06:25 PM

That appears to work great. I don't have access to the actuall machine at the moment, but tried it on a system I do have access to and mounted the partitions using the uuid. Thanks again.