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From std-unix-request@uunet.uu.net Sat Sep 29 22:19:45 1990
Received: from cs.utexas.edu by uunet.uu.net (5.61/1.14) with SMTP
id AA06776; Sat, 29 Sep 90 22:19:45 -0400
Posted-Date: 29 Sep 90 21:31:20 GMT
Received: by cs.utexas.edu (5.64/1.76)
From: auspex!guy@cs.utexas.edu (Guy Harris)
Newsgroups: comp.std.unix
Subject: Re: make DOS a filesystem?
Message-Id: <562@usenix.ORG>
References: <536@usenix.ORG> <537@usenix.ORG> <555@usenix.ORG>
Sender: jsq@usenix.ORG
Organization: Auspex Systems, Santa Clara
X-Submissions: std-unix@uunet.uu.net
Date: 29 Sep 90 21:31:20 GMT
Reply-To: std-unix@uunet.uu.net
To: std-unix@uunet.uu.net
Submitted-by: guy@auspex.uucp (Guy Harris)
>Using the System V file system switch (or vnodes, or xyznodes
>or whatever ...) would allow any utility to operate on any MS/DOS
>file on the MS/DOS partition without the need for copying.
*Does* allow, at least in the case of vnodes under at least some SunOS
releases; Sun Consulting sells (or, at least at one point, sold; dunno
if they still do) a DOS file system for SunOS, which Steve Kleiman did
as a sort of "proof of concept". Other vendors may have done the same.
I'm not sure what all this has to do with UNIX standards, though, as
none of the existing UNIX standards specify the on-disk format of UNIX
file systems (thank goodness!), they just specify the interface to
functions that manipulate files. I don't think the DOS file system can
fully support the POSIX semantics of those functions in any case, given
the file name limitations, the lack of full UNIX-style permission bits,
etc., etc..
Volume-Number: Volume 21, Number 151