[CentOS] Move hard disk to a new machine

[Kenneth Porter]

On Saturday, March 15, 2008 3:41 PM -0400 "William L. Maltby" 
<CentOS4Bill at triad.rr.com> wrote:

> Unless it is an LVM volume? OP didn't say much. If so, export the volume
> first, then import it on the target machine.

For those of us not familiar with the details of LVM, what does the 
export/import do?

I was going to take the 300 GB PATA drive out of an old HP Vectra and move 
it to a newer box with more memory, and didn't realize I'd need to do this 
step.