Re: cd-rom "medium not found", no modules load
On Sun, Jun 24, 2001 at 08:48:59AM -0400, Stephen Taylor wrote:
> What modules / parameters do I need to install a cd-rom
> at io=0x1f0 and interrupt=14?
Nothing, because it can't. The irq/io are in use by the ide driver.
It in turn will drive your cdrw, by talking atapi words to it (you don't
want to know).
So as a simple ide/atapi cdrom, it should work fine. In that situation
it can be addressed as one of the /dev/hd* devices.
> It's a samsung cd-rw sw-208. Debian Potato started up first thing from the
> boot-disk, recognized one cd-rom, recognized the second, then said "there's
> nothing at /mnt/cdrom". Loading cd-rom modules at the address and irq fails
> with "resource busy" messages
Maybe the disk is bad? Did you doublecheck that it was in fact in the
drive (hey, that happens to me all the time too)?
Anyway, you do not need to load modules for an atapi cdrom.
What is interesting for you to know, is that if you want to use the cdrw
to burn disks, you cannot do that using the ide/atapi interface and have
to use the "scsi generic" interface. In order to be able to do this,
you must bind the "ide-scsi" driver to the cdrw at boot time, before the
normal "ide-cd driver gets to sit on it. This is done by putting append
"hdc=ide-scsi" in your /etc/lilo.conf.
After that, and rebooting to effectuate the change, you can tell your
cd writing app to look for /dev/sg0 (the first scsi generic device)
when it needs to find the cdrw.
Cheers,
Joost
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