Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!uflorida!haven!decuac!felix!info-ultrix
From: grr@cbmvax.cbm.commodore.com (George Robbins)
Newsgroups: comp.unix.ultrix
Subject: Re: Verdict on Ultrix V2.3?
Message-ID: <55490@felix.UUCP>
Date: 26 Aug 88 14:52:20 GMT
References: <54086@felix.UUCP>
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Reply-To: grr@cbmvax.cbm.commodore.com (George Robbins)
Organization: Commodore Technology, West Chester, PA
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Reply-to: grr@cbmvax.cbm.commodore.com (George Robbins)

> The other big problem area is fsck.  You cannot mix fsck and kernels
> from v2.2 and v2.3.  I.e., you must use the v2.3 fsck with the v2.3 kernel.
> The reason is that the "clean file system" bit moved to a new location in
> v2.3.  The reason for that is that there is a bug in the v2.2 file system
> code that is not caught by the v2.2 fsck.

Acutally, it may be that DEC deserves a cheer on this one.  One of the
known problems with the Ultrix changes to the file system was that they
used a dirty flag comvention that was incompatible with 4.3BSD.  Hopefully
they worked a trade and the dirty bit is now BSD compatible and maybe,
just maybe, BSD disk labels (aka partition tables stashed on disk) will
be Ultrix compatible???  8-)


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