From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
Date: Mon, 24 Oct 2011 08:15:09 -0400
To: 9fans@9fans.net
Message-ID: <cf8a6cb7042c7eb538d8dba109152637@chula.quanstro.net>
In-Reply-To: <CAM6ozu6MQ5G83VPr9-0ucbL-m0bOA9BQucVH0KzTCTKDVD+8ZA@mail.gmail.c>
References: <CAOEdRO3m8SChRVHcdE3Wv6yQ16pv+uttqJrjOqAY45Z6tRpuOA@mail.gmail.com>
	<CAM6ozu6MQ5G83VPr9-0ucbL-m0bOA9BQucVH0KzTCTKDVD+8ZA@mail.gmail.c>
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Subject: Re: [9fans] how to burn iso
Topicbox-Message-UUID: 399fc5d6-ead7-11e9-9d60-3106f5b1d025

On Mon Oct 24 04:05:31 EDT 2011, tyapca7@gmail.com wrote:

> #!/bin/rc
> # burn a CD from ISO-9660 image on $home/cd.iso
> # version 0.03
> # Thu Jul  3 06:35:32 EDT 2003 <cej@gli.cas.cz>
>
> rfork e
> t1 =`{date}
> kill cdfs | rc
> kill 9660srv | rc
> cdfs -d /dev/sdD0
> cp $home/cd.iso  /mnt/cd/wd || echo CD BURNING ERROR
> t2 =`{date}
> echo begin: $t1
> echo end: $t2
> # -eof-

the key bit to understand is that cdfs is the only part of the system
that knows how to send special scsi commands for talking to dvd+/+/i
or blu-ray-* or cd-* devices.  it uses the raw interface to inject the
commands directly.  neither the disk drivers nor the sd system
know anything about cdroms, except that they are removable.

- erik