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Subject: Re: ide-scsi is deprecated for cd burning! Use ide-cd and
	give	dev=/dev/hdX as device
From: kernel <kernel@crazytrain.com>
Reply-To: kernel@crazytrain.com
To: "Kiniger, Karl (GE Healthcare)" <karl.kiniger@med.ge.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, "Randy.Dunlap" <rddunlap@osdl.org>,
       sergio@sergiomb.no-ip.org,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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On Tue, 2005-02-15 at 14:48, Kiniger, Karl (GE Healthcare) wrote:
> I can confirm that. Creating a correct  iso image from a CD is a
> major pain w/o ide-scsi. Depending on what one has done before the iso
> image is missing some data at the end most of the time.
> (paired with lots of kernel error messages)
> 
> Testing was done here using Joerg Schilling's sdd:
> 
> sdd ivsize=`isosize /dev/cdxxx` if=/dev/cdxxx of=/dev/null \
> 	bs=<several block sizes from 2048 up tried,does not matter>
> 
> and most of the time it results in bad iso images....

Karl,

what about catting out that device?  I.E., 

'cat /dev/cdxxx > some.iso'

*instead* of using 'dd' (or variants) against it?  I've always had good
results using 'cat' and CDs, avoiding 'dd' and CDs whenever the
opportunity presents itself.


regards,


-fd




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