Re: [PARPORT] Writing cd's to HP 7200E


grant@torque.net
Sat, 24 Oct 1998 10:52:35 -0400 (EDT)


> with this drive (HP7200E) I have the following problem and can't
> seem to get it to work. First of all, it's detected fine and I
> can mount the cd as a regular cd-rom. So, the drive works and
> is connected just fine.

Don't forget that pcd and pg cannot be used at the same time in 2.0
kernels.

> However, whenever I try to use cdrecord, I get either:
> ./cdrecord: No target found.
> when I try: ./cdrecord -scanbus
> or:
> scsidev: '0,0'
> scsibus: 0 target: 0 lun: 0
> ./cdrecord: Operation not supported by device. Cannot open '/dev/pg0'.
> when I try: ./cdrecord -v -dummy speed=1 dev=0,0 /tmp/cdimage.iso
> When I start, it does detect the HP7200E as pg0!
> pg0: HP CD-Writer+ 7200, slave

> What am I doing wrong here?

It's hard to tell from the information we have so far. Please start by
loading pg with the verbose=1 (or even verbose=2) options so we can see
a bit more of what is going on.

I recommend using cdrecord 1.6.1 and building it to support pg.

Make sure that /dev/pg0 exists and has the correct major and minor numbers.

> I set the delay to 0 (which shouldn't make a difference, except for speed).

Unless your port is flaky and you are not getting reliable communication
with the drive. Enabling verbose logging should answer that question.

> I enabled IDE-SCSI emulation.

That's irrelevant and unnecessary.

> I disabled the internal cd-rom, which is not detected.

Also unnecessary.

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Grant R. Guenther grant@torque.net
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