Date: Mon, 7 Feb 2000 18:09:19 +0100 From: "Karel J. Bosschaart" <karelj@wop21.wop.wtb.tue.nl> To: Brian Skrab <sillybug@pinky.us.net>, freebsd-questions@freebsd.org Subject: Re: Duplicating CDROMS in 1 step? Message-ID: <20000207180918.A2172@wop21.wop.wtb.tue.nl> In-Reply-To: <200002042003.PAA17992@pinky.us.net> References: <200002042003.PAA17992@pinky.us.net>
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On Fri, Feb 04, 2000 at 03:03:51PM -0500, Brian Skrab wrote: > Hello, > > I have a Toshiba SCSI CDROM and a HP SCSI CD Writer on my FreeBSD > 3.4 machine. I have been using the cdrecord and mkisofs tools to > duplicate (for the most part) the data on a CD and burn it onto a > CDR disc. However, when I examine the portions of the disc used by > mounting both the original and the duplicated CD they do not appear > to contain the same amount of data. This is also a somewhat > cumbersome way to make copies. Does anyone know of a tool for > FreeBSD that will burn an exact duplicate of a CD to a CDR? I used dd recently to make a duplicate of a CD (man dd for details): dd bs=2048 if=/dev/cd0c of=/image.iso assuming the cdrom device is /dev/cd0c. Also the volume label gets copied, which otherwise needs to be done with a mkisofs option. It appears to be in the 17th sector, and this is actually the only way I found to read the CD volume label in FreeBSD. > Ideally, I'd like to pop a CD into the CDROM and a blank CDR into > the CD writer, run the utility and have a complete copy burned byte > for byte onto the CDR. Does such a beast exist? > It's obvious to pipe dd to cdrecord instead of making an image file... :-) Hope it helps, Karel. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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