e2fsadm not found

redhat.com | Red Hat, Inc.: "You could either do a full e2fsck on it (it should be able to recover this
since the metadata that the inode table is overlapping is unused and e2fsck
will make a copy of the duplicate blocks) or you could use resize2fs to
shrink it back to the original size (that should also make the problem go
away). Best to do this before doing any writes to the filesystem, and I
would suggest making a backup, but since this is already a backup...

> Well, I do have ext2online installed, although there's no e2fsadm. I'll
> have to check for other RPMs...

It would be part of the lvm 1.0 tools if it was anywhere. It is just a
convenience wrapper around lvextend and ext2online (or resize2fs for
unmounted resizes)."