[CentOS] OT: Fortunate clueless dd chum - lvm recovery

Looks like the chum did not have to lose any data.

Wiping out the MBR and the next 63 blocks apparently only wiped out grub 
stage1, partition table, and  part of the lvm config data.


I get to try to do a lvm 'recovery' at his expense now but this is my 
first time...has anybody ever tried restoring lvm config data back to 
the md/pv device?


Cheers,

Christopher