This might help you, See the article "Recovery of RAID and LVM2 Volumes" at
http://www.linuxjournal.com/article/8874, in its section named " Recovering and 
Renaming the LVM2 Volume" it describes editing the duplicate vol group's backup 
file to change the volgroup's name and using vgcfgrestore -f to make LVM 
rewrite that volgroup's metatdata from the edited file. also see Listing 7 and 
way way down, the "corrected listing 6".



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-----Original Message-----

From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of RPN01
Sent: Friday, February 09, 2007 11:50 AM
To: [email protected]
Subject: Renaming an LVM volume group...

There is a LVM command ³vgrename² that can rename a volume group from one
name to another, but what if you have a volume group you¹ve just attached to
the system, and its name matches the name of one of the volume groups you
already have on the system? How can you rename this volume group, without
effecting the one you already have? How can you distinguish between the two?

We¹ve run into this several times on Linux images on the z, but I just ran
into the same issue on an Intel box we were working on rebuilding / cloning.
What I¹d specifically like to do today is to ³dd² copy the disk, and then
change the name of the volume group on the copied disk before attempting to
mount it up. In the state I¹m in right now, I can¹t mount it, so I can¹t
complete the clone before removing the disks and parting them out to two
other Intel boxes.

I¹m asking here because we¹re much more likely to run into this situation
than on an Intel, so I¹m hoping this may be a better place to find an
answer...
-- 
   .~.    Robert P. Nix             Mayo Foundation
   /V\    RO-OC-1-13              200 First Street SW
 / ( ) \  507-284-0844           Rochester, MN 55905
^^-^^   ----- 
        "In theory, theory and practice are the same, but
         in practice, theory and practice are different." 


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