upgrade to FC8 left me with a bad logical volume
I recently upgraded to FC8 and when I did a final reboot, my lvm volumes
failed to come back up. Poking around shows that the data on the disk
(happens to be /dev/md1, a RAID5 volume) is still intact, but pvscan, etc.,
report an 'Invalid metadata area header checksum'.
The disk contains a valid physical volume (pv0), volume group (raid5a),
and 3 logical volumes. The disk is intact, but cannot be started by lvm.
Is there a way (via 'dd' or some other fashion) to copy the data off of
this disk and on to another volume such that I can recover the files?
I have other disks available, but don't know how to get the data off in a
form that I will be able to read later. I tried some experiments with
'dd' but couldn't see how I was going to get the files out of it.
Thanks for your help,