Mark wrote on 09/06/2009 11:02:22 AM:

> > Second (as Mark noted) - you may think you can mount the FS R/O and
prevent
> > the log from being replayed by specifying you want a non-journaled FS
(aka
> > EXT2) - which may (and will) lead to the FS being marked dirty (as
Shane
> > noted) - requiring a 'fsck' to be performed - requiring WRITE access
(bad..
> > very bad !)
>
> The fsck is _not_ required, so write access is not required.

Sorry Mark, I'm in agreement with Ivan.
I just did a test on x86 as at the moment I don't have a zLinux system I
can break filesystems on.
If you attempt to mount a *clean* ext3 f/s as ext2 you get the warning -
and a successful mount.
With a dirty journal it refuses to mount as ext2 (ro *or* rw). A
subsequent mount as ext3 (ro) runs the journal regardless as has been
discussed I think. It shows as ro in /proc/mounts.

Shane ...

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