Date: Tue, 17 Jun 1997 11:04:38 -0400 From: dennis <dennis@etinc.com> To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) Cc: isp@freebsd.org Subject: Re: tar hangs 2.2.x system Message-ID: <3.0.32.19970617110435.00afb750@etinc.com>
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At 02:38 PM 6/15/97 +0200, you wrote: >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. Perhaps true, but in the commercial world you cant instantaneously change all of your documents and procedures to fix something that has worked since the beginning of time. They both SHOULD work, and changing a basic procedure is quite painful. Dennis
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