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Date:      Sun, 15 Jun 1997 14:38:37 +0200
From:      j@uriah.heep.sax.de (J Wunsch)
To:        hackers@FreeBSD.ORG
Subject:   Re: tar hangs 2.2.x system
Message-ID:  <19970615143837.DG25350@uriah.heep.sax.de>
In-Reply-To: <339E86BE.7A59@cki.ipri.kiev.ua>; from Ruslan Shevchenko on Jun 11, 1997 14:06:25 %2B0300
References:  <199706110614.BAA04741@dyson.iquest.net> <339E86BE.7A59@cki.ipri.kiev.ua>

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As Ruslan Shevchenko wrote:

> > tar -cvf /dev/rfd0 somefiles
> > 
> > Note the "raw" device.
> > 
> 
> But it is a bug.
> 
> Anybody, do send_pr

No, don't.  For one, it was a known bug, so the PR wouldn't probably
have caused more reason for anybody at all, and now, Bruce has fixed
this bug a couple of days ago.

Folks, nevertheless:

	Buffered devices (/dev/fd0) are JUST and ONLY for mounting
	something (and for swapon(8)).

	Raw devices (/dev/rfd0) are FOR EVERYTHING ELSE.

	(The terms `block device' and `character device' are
	misnomers you should never use.  Historical errors.)

Sorry for shouting, but from some non-newbie like dennis, i would have
expected to know this.  I'm repeating this over and over again to my
clients on any Unix course i'm teaching.

(There are several reasons for this statement, beyond the now fixed
FreeBSD bug.)

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)



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