[Gllug] How can a write to a re-writable cd?

John Southern john at livepublishing.co.uk
Thu Jun 28 09:14:47 UTC 2001

I use the commands 
mkisofs -r -J -o /tmp/cddata.iso /tmp/cddata
to create an image of /tmp/cddata into the iso9660 filesystem. Then
cdrecord -v dev=1,X,0 speed=8 /tmp/cddata.iso
to actually burn.

If you do a 
cat /proc/scsi/scsi
are you seeing the writer attached as SCSI bus 1 after other scsi

> Lesh wrote:
> Hi,
> I'm using a HP cd writer 9300 series and Linux 2.4 loads the scsi-ide
> module to handle it.  Although ytree can read from disks that are
> mounted a simple command like od -ha /dev/hdd returns zero size even
> though media is loaded.  It seems impossible to write to this device.
> Is there something silly I'm missing or is it just not possible to
> write to cd writers (or mine in particular).  I'm using Mandrake 8.0.
> Using fdisk also complains about the zero size and syslog suggests
> that command (0) (Test Unit Ready) fails!
> I'd happily alter the scsi-ide.c module (which emulates a SCSI
> interface for ide drives) if I knew where I could get an ATAPI spec
> for the drive, but the HP web site seems to have only "user"
> documentation - nothing seriously technical.
> Thanking you in advance,
> Lesh.
> lzz at breathemail.net

John Southern

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