Date: Fri, 8 Nov 1996 11:11:08 -0500 (EST) From: cau@cc.gatech.edu (Carlos Ugarte) To: luigi@labinfo.iet.unipi.it (Luigi Rizzo) Cc: cau@cc.gatech.edu, hackers@freebsd.org Subject: Re: Philips CDD2000 CD-R works as HP-4020i Message-ID: <199611081611.LAA11686@oscar.cc.gatech.edu> In-Reply-To: <199611081137.MAA13440@labinfo.iet.unipi.it> from "Luigi Rizzo" at Nov 8, 96 12:37:52 pm
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> 1) can I use it as a CD reader, by putting in a standard CDROM ?
> mount refuses to work on character devices as /dev/rworm0,
> and worm.c has no reference to a block device. I tried
>
> vnconfig /dev/vn0c /dev/rworm0
>
> but with no luck
I think Jordan answered this one; essentially no for now. I used
to keep my old SCSI CD-ROM unit around, but at this moment I'm
having to boot from a different kernel (GENERIC should work) that
doesn't recognize this as a worm device.
> 2) after making the appropriate changes to burncd.sh, I tried to use
> the writer in "dummy" mode, with a CDROM instead of a writable disk
> inside. No luck either, since I get a couple of 'illegal command'
> messages (but perhaps this is just because the writer wants to see a
> writable disk instead ?)
I have a few ideas about this:
That's how I did it at first, test in dummy mode, then burning. You
probably have the same thing for the script as I do, but here's
the relevant parts that were used to test:
echo -n "Place CD in the worm drive now and press return: "
read junk
scsi -f /dev/rworm0.ctl -c "0 0 0 0 0 0" >/dev/null 2>&1
wormcontrol select HP 4020i
wormcontrol prepdisk double dummy
wormcontrol track data
rtprio 5 team -v 1m 5 < $1 | dd of=/dev/rworm0 obs=20k
wormcontrol fixate 1
That was from my "testcd" script; the only difference from the
burncd.sh script was adding dummy to the second wormcontrol line. You
can leave the quirks as "HP 4020i", and I think "Philiips CDD2000"
should also work (that's what I sent to Joerg). I can send you the
diffs too if you need that.
Most likely, I think, is that it the CDD2000 will not test with a
CD-ROM in there (you may need a blank CD-R). I didn't try to
do the dummy on a CD-ROM, used a CD-R instead. When in dummy
mode, the write light will blink alternating between
yellow/orange and green. When in burn mode it stays
yellow/orange the entire time.
Last thing I can think of is that I'm using firmware version
1.26. It's available via Philips' web site; one of the places to
get it would be http://www-us.philips.com:80/pkm/laseroptics/cdr/
but there are mirrors elsewhere.
Let me know if there's something else I can do.
Carlos
--
Carlos A. Ugarte cau@cc.gatech.edu
Author of PageMage, a virtual desktop util for OS/2
http://www.cc.gatech.edu/people/home/cau/
If you understand what you're doing, you are not learning anything
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