Date: Wed, 3 Feb 1999 14:31:24 -0700 (MST) From: "Kenneth D. Merry" <ken@plutotech.com> To: pete@sms.fi (Petri Helenius) Cc: freebsd-stable@FreeBSD.ORG, freebsd-scsi@FreeBSD.ORG Subject: Re: od driver Message-ID: <199902032131.OAA40124@panzer.plutotech.com> In-Reply-To: <14008.47444.55701.124427@silver.sms.fi> from Petri Helenius at "Feb 3, 1999 11: 2:41 pm"
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Petri Helenius wrote... > Kenneth D. Merry writes: > > Petri Helenius wrote... > > > > > > How do I force the system to use od0 instead of cd0 driver for a > > > device? I've a SCSI DVD-RAM which I would like try to write to but > > > since the cd0 driver does not support that (at least at the moment?) > > > I tried to wire the drive to use od0 but was not successful. > > > > > > How does one accomplish this? > > > > Umm, you can't. Writing to CD-R or DVD drives is very different than > > writing to MO drives. Even if you change the probe routine in the od > > driver to recognize your DVD drive, writing to the drive probably won't > > work properly. > > > > I suggest that you try cdrecord, and see if you can write a DVD that way. > > You can probably stick a cd9660 filesystem on the DVD. > > > DVD-RAM is a random access media, quite unlike CD-R which is written > in sessions. Well, you can certainly try it. I think it would be easier to just use the CAM cd driver, though. It should already support writing, and it'll attach to your drive by default. I'm not sure, though that the cd9660 filesystem code can support writes. You may have to use a standard ufs filesystem on the CD for that. I just tried a few experiments to see if I could get a cd9660 filesystem to mount read-write (using the vn device), and I wasn't able to get it to work. Ken -- Kenneth Merry ken@plutotech.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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