[CentOS] RAID + LVM Addition to CentOS 5 Install

Tue Sep 4 14:57:48 UTC 2007
Shad L. Lords <slords at lordsfam.net>

> This worked fine, but on reboot I get a ton of errors from LVM saying
> that volume with id xxxx-xxxx-xxxx... was not found and the system
> automatically reboots.  This seems to happen for all volumes, not just
> the ones I changed.  This error even happens for a separate volume
> group (called 'extended') that is on a separate set of disks and was
> existing prior to the CentOS 5 install.
> Any idea on some step I missed?  I know things are still fine on the
> disks, as when I boot with the CentOS DVD with the 'linux rescue'
> option all RAID & LVM volumes are available for use.  So from this it
> seems I need to update some CentOS config file?

Did you re-create the initrd after adding the new raid group?  Not 100% 
about this but my guess would be that the initrd isn't starting md2 and thus 
can't find the pv on that raid device.