Volgroup00 not found

[Timothy Murphy]

Braden McDaniel wrote:

> After installing F10 and rebooting, I get "Volgroup00 not found".
> 
> I installed F10 over an existing Fedora installation. (I did not
> perform an upgrade.) I can boot to rescue mode and things seem to be
> mounted okay under /mnt/sysimage. What can I do to fix this?

I'm probably out of my depth,
but what happens if you boot with Knoppix or some other Linux CD,
and say "sudo vgchange -a y" ?