[ale] Examining pre-existing LVM

[lists at caeruleus.info (Giulio (lists))]

On Thursday 20 March 2008, Jeff Hubbs wrote:
> I have two external SCSI enclosures, with one disk drive in each
> one, that came from another system.  Each has a single partition,
> type 8e (Linux LVM).  I want to bring those drives up to
> examine/recover their contents.  I've successfully connected them
> to a card on a server that is booted to a Gentoo liveCD and LVM is
> up and working.
>
> Naturally, I want to be nondestructive (better still, read-only) in
> anything I do.
>
> None of the LVM docs I've found deal with pre-existing LVM
> partitions when the original arrangement isn't known.  Any tips on
> how to proceed?
>
> - Jeff

Jeff,

Sorry if this sounds obvious, but have you tried:

vgchange -a -y

Here is a good article:

http://www.linuxjournal.com/article/8874

Giulio