From owner-freebsd-current  Wed Aug 23 16:20:19 2000
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Date: Thu, 24 Aug 2000 00:20:11 +0100
From: Paul Richards <paul@originative.co.uk>
Organization: Originative Solutions Ltd
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To: Alexander Leidinger <Alexander@Leidinger.net>
Cc: ken@kdm.org, stuyman@confusion.net, mwm@mired.org,
	current@FreeBSD.ORG
Subject: Re: Why no CDR ioctls for SCSI cds?
References: <200008231121.e7NBLQk02859@Magelan.Leidinger.net>
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Alexander Leidinger wrote:
> 
> On 23 Aug, Paul Richards wrote:
> 
> >> > On a vaguely related topic, after much searching I can't seem to see one
> >> > way or the other if we can do a complete bit-by-bit copy of a cd with
> >> > either cdrecord or burncd, though it's possible I'm looking in the wrong
> >> > place.
> >>
> >> I think cdrecord can burn CDs in disk-at-once mode, and I think cdrdao (in
> >> ports/audio) can do it as well.
> >>
> >> As far as getting an image, you can use dd to dump off an image of a CD if
> >> it is a standard ISO9660 CD.  (I've used that method to clone CDs before.)
> >
> > That didn't seem to work when I tried it a couple of days ago. Got a
> > "device not configured" error.
> 
> You've done something wrong, it works here.

Yep, just tried it again and you're right I was doing something wrong. I
was trying to dd from the blank in the CD-RW rather than the master in
the CD (blush).
 
> BTW:
> If I need a copy of a data cd I use "cdrecord -v speed=4 dev=0,1,0
> -eject -isosize /dev/cd1c" (cd1 is my CD-ROM, cd0 (dev=0,1,0) is my CD
> burner).

That's what I used in the end.

Paul.


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