2005-Nov-23
Worked on a kernel extfs3 "Group descriptors corrupted" problem. It can boot rescue disk which has lvm tools. pvdisplay and lvscan appear to work. I don't see any /dev/VolGroup00 directory though. I ended up solving it like the following:Booted with rescue mode on fedora DVD. Do not select to find local filesystems.
lvm vgscan -mknodes lvm vgchange -ay mkswap -c /dev/VolGroup00/LogVol01 fsck -a /dev/VolGroup00/LogVol00 # took a long timeHad to redo the swap, because Fedora boot hung at the enabling swap step. I don't know how the corruption all happened in the first place.