Re: [linux-lvm] *** ANNOUNCEMENT *** LVM 0.9.1 beta1 available at www.sistina.com

[Steven Lembark <lembark@wrkhors.com>]

> I wonder if this is why I lost all of my data last Thursday...
> 
> vg w/ 2 pv's (hde1 & hdg1) and 3 lv's.  Add a pv (hdc1) and
> reboot, and all of a sudden, even though the vg is still there,
> with 3 pv's and 3 lv's, the lv's won't even fsck (bad magic
> number in superblock -- doesn't even look like a filesystem was
> even there).  I though maybe it had a problem w/ rearranging the
> pv's or something...  How else could it completely lose track
> of my data?
> 
> It was kernel 2.4.0 w/ the several-line vg_extend patch, and the 0.9
> tools...

you probably hadn't lost anything.  one approach that usually
works is to:

	vgexport vg0;
	vgimport vg0 /first/disk /second/disk;

likely to get you back to where you were before the vgextend.

if vgimport doesn't like them anymore you can create a new lv,
vgextend it to the two devices and create new vg's w/ the same
allocations as the old ones (simple enough if they havn't been
extended too many times).

-- 
 Steven Lembark                                   2930 W. Palmer St.
                                                 Chicago, IL  60647
 lembark@wrkhors.com                                   800-762-1582