How to see 2nd disk with LVM

General Computing *nix and other operating systems
1

Greetings!

Imagine this scenario:
I have FC3 with LVM on 1 physical drive.
I pull out the drive, put in another drive, and do a fresh install.
I put the origional drive back in as /dev/hdb
Now, my layout is now:
/dev/hda1 <— new boot
/dev/hda2 <— new LV group
/dev/hdb1 <— old boot
/dev/hdb2 <— old LV group

Both are vanilla FC3 installs, so both have
/dev/VolGroup00/LogVol00 <— The wonderful data, mount point /
/dev/VolGroup00/LogVol01 <— swap

Question: How do I get to the wonderful data on the old drive?
In the pre-LVM days, I can just do a
mount /mnt/olddrive /dev/hdb2
Now, there is no
/dev/VolGroup00-on-hdb2/LogVol00
to mount! How should I reference the old Volume?

Thanks!

2

Check out the lvm command

man lvm

I think you’ll need to start a minimal system, or recovery console, to rename one volume group so that it can be mounted later - you can’t have two entries on /dev/VolGroup00 which are valid, which is effectively what you have now.