Linux: "Found duplicate PV XXXXYYYYY: user /dev/sdb1 not /dev/sda1"

Question

I'm trying to resize my virtual hard disk, so I've cloned it, and right now I have two disks in my virtual machine.

I'm trying now to boot off the old virtual disk and then resize the new hard disk's partitions, but when I do pvresize complains that there duplicate physical volumes (PV) with the same ID (presumably because I cloned my disk).

What do I do?

Can i just change the ID of one of the physical volumes?

Solution

Have you considered trying pvchange -u on the new physical volume to give it a new UUID?

Comments

[7783]

I'm booting off the old volume to make changes to the new volume (unmounted)

[Steve Townsend]

Boot off a live CD instead. Or make the changes in single-user mode, if you can. LVM doesn't cope with having duplicate PV UUIDs.

[7783]

which live cd would you recommend? are you sure its not simpler just to change the pv id?

[7783]

Thanks for the suggestion, I wasn't aware of pvchange. I have since scrapped the whole thing and re-installed Ubuntu on a big virtual hard disk.