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Date:      Tue, 9 Jan 1996 15:38:07 +0000 (GMT)
From:      Doug Rabson <dfr@render.com>
To:        Bruce Evans <bde@zeta.org.au>
Cc:        joerg_wunsch@uriah.heep.sax.de, terry@lambert.org, freebsd-hackers@FreeBSD.org, root@synthcom.com
Subject:   Re: DOS File system fixes
Message-ID:  <Pine.BSF.3.91.960109153710.482Q-100000@minnow.render.com>
In-Reply-To: <199601091140.WAA18562@godzilla.zeta.org.au>

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On Tue, 9 Jan 1996, Bruce Evans wrote:

> >> There are several reports that enabling DOS f/s read/write can damage
> >> other file systems.
> 
> I haven't seen such a report for a long time, or such report with enough
> details (not even from me after I saw the problem :-)
> 
> >It seems that if you use FIPS or PRESIZE or "Partition Magic" to resize
> >your partition, the cluster size will not be reduced.
> 
> >This results in crap being written out to the "phantom" locations as if
> >it were a bigger disk.
> 
> This should only affect the slice containing the DOS file system.  The
> device number would have to be corrupted for a write to affect another
> device.
> 
> >There is some indication that mark-for-update occurs on read-only devices,
> >and that for MSDOSFS, this update actually takes place.
> 
> I think this was fixed a long time ago.

I vaguely remember the reports of this kind of corruption being 'pre 
slice' era but I could be mistaken.  Can anyone remember? 

--
Doug Rabson, Microsoft RenderMorphics Ltd.	Mail:  dfr@render.com
						Phone: +44 171 251 4411
						FAX:   +44 171 251 0939





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