Re: converting / to ext3-0.0.5d

[Joachim Kunze <joachim resistance de>]

Hi Andreas,

Andreas Dilger wrote:

> Joachim, you write:
>
> > Unfortunately there's still one problem after converting the
> > journal:
> >
> > When the system is up I can't see a strange behaviour, but
> > during each boot-process of my RH7-Box I receive the following
> > message (Only root-partition, /home-partition works fine):
> >
> > Checking root filesystem
> > Ext3 journal superblock is corrupt
> >
> > FIXED
> >
> > The ext2 superblock is corrupt: no valid journal
> > superblock found
>
>
> You should probably get the most recent version of the e2fsprogs from
> sourceforge, and verify that the problem still exists.  

I'm currently using the e2fsprogs-1.20 and I didn't find newer ones.

For some reason
> e2fsck does not understand that there is a new version of the superblock,
> and thinks it is corrupt.  The other possibility is that there is a bug
> in e2fsck (or in the kernel) which writes out a slightly wrong format of
> journal superblock, and the other one doesn't understand it.

> What _should_ happen is that if e2fsck does not understand the journal
> superblock it should refuse to change it, or it could fall back to the
> mount/unmount method of recovering the journal.  In this case, it is
> actually not a problem that e2fsck is resetting the journal, because
> when the root fs is mounted, the kernel does the journal recovery for us,
> and resets the journal itself.  It should still be looked at, however.

What I don't understand is, why my /home-partition don't cause
any problems here and my /-partition does. That makes in my eyes
absolutely no sense, why it works fine with the first partition and not 
with
the second one. The only difference was, that I converted the
/-partition later than my /home-partition and I fsck'd the /home-partition
directly after re-mounting the partition.

How can I verify, if e2fsck does not understand the journal superblock?
/var/log/messages doesn't 'provide' me with more error-messages.

Cheers,

Joachim