Re: ext3 crash after RedHat 7.2 installation

[Theodore Tso <tytso mit edu>]

On Wed, Jan 02, 2002 at 07:14:18PM -0800, Andy Do wrote:
> 
> Mounting root filesystem
> EXT3-fs: ide0(3,3):couldn't mount because of unsupported optional features
> (200 0200).
> mount: error 22 mounting ext3

This means that the primary superblock of the root filesystem was
trashed.  Hence, it couldn't be mounted.

You *might* have been able to save it if you ran e2fsck (or fsck.ext3)
after you booted from the rescue CD.  Unfortunately, we'll never know,
since the first thing you did was a "mke2fs" command, which (as Andrew
Morton mentioned) reinitialized the filesystem.  If you had run
e2fsck, it might have been able to use the backup superblock in order
to recover the filesystem.

						- Ted