From: Michael Buesch <mbuesch@freenet.de>
To: Joerg Schilling <schilling@fokus.fraunhofer.de>
Subject: Re: CD writing in future Linux (stirring up a hornets' nest)
Date: Fri, 10 Feb 2006 18:32:29 +0100
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References: <200602031724.55729.luke@dashjr.org> <Pine.LNX.4.61.0602091832500.30108@yvahk01.tjqt.qr> <43EC72E3.nailISD4HI9WC@burner>
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Cc: eter.read@gmail.com, matthias.andree@gmx.de, linux-kernel@vger.kernel.org,
       jim@why.dont.jablowme.net, jengelh@linux01.gwdg.de
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On Friday 10 February 2006 12:02, you wrote:
> Jan Engelhardt <jengelh@linux01.gwdg.de> wrote:
>=20
>=20
> > Right. The question was rather like this:
> > Say we have our non-stable /dev/sr0 mapping to /dev/sg0, and it has got=
 BTL=20
> > 1,1,0. Now, if the user starts `cdrecord -dev=3D1,1,0`,
> > `ls -l /proc/$(pidof -s cdrecord)/fd/` should show (and in fact did whe=
n I=20
> > used ide-scsi back then) /dev/sg0, right?
> >
> > If so, what's wrong with just opening /dev/sg0 directly (as per user=20
> > request, i.e. cdrecord -dev=3D/dev/sg0) and sending the scsi commands d=
own=20
> > the fd?
>=20
> As I did write _many_ times, this was done by the program "cdwrite" on Li=
nux
> in 1995 and as cdwrite did not check whether if actually got a CD writer,
> cdwrite did destroy many hard disk drives just _because_ the /dev/sg*=20
> is non-stable.
>=20
> People did not believe this and did write shell scripts with e.g. /dev/sg=
0=20
> inside and later suffered from the non-stable /dev/sg* <-> device relatio=
n.

I am sure they used udev, back in 1995...

=2D-=20
Greetings Michael.

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