The CD-RW is the biggest thorn in my side right now, and in fact the
primary motivation for signing up for the list . . . so it looks like I
jumped in at the right time.
Here's the deal (I think) . . .
I *believe* that the 2.2.14 kernel has gotten broken with regard to
IDE-SCSI emulation, and Mandrake very cleverly sets the LILO parameter
to force the kernel to try to use the broken code.
Thus, noting correctly that I had a CD-RW, Mandrake put the
hdc=ide-scsi line into my lilo.conf, which enabled the broken kernel
code, and I could not read any of my cdroms, which was a problem since
my entire system backup was on them.
(I completely re-staged my machine rather than just updating the system
partitions because I wanted to totally re-partition it.)
I say that the kernel code itself is broken becuase under RedHat 6.1 I
rebuilt a kernel with IDE-SCSI emluation and after doing so I could use
the /dev/pg0 (CD-RW) device and the /dev/cdrom (/dev/hdc CD-ROM)
device without any trouble.
Under the Mandrake 7.0 distribution (2.2.14 kernel), I tried exactly
the same thing, and then I could write to it just fine, but I couldn't
read it. Or I can build without the emulation and I can read it, but
not write to it.
The best solution I've come up with so far is to build a kernel in
which both the IDE SCSI emulation and the IDE ATAPI support are
modules, and not specify anything at boot time.
That way, I can boot the machine and mount CDs without any trouble, but
then I can't read them. Or I can boot and write them but not read
them. Whichever I do first after I reboot works fine, but disables the
other. This is enough to get me limping along for now, but if I wanted
to have to reboot every few hours I'd run WIndows in the first place.
Has anybody gotten any further on this than me? I was planning to try
to figure out how/where to check on known kernel bugs; though I didn't
quite see myself as a "newbie", so I signed up for *this* list, I
haven't actually needed to report any kernel bugs before . . . . except
in limited areas like the parallel-port project.
On Thu, 24 Feb 2000, Stephan M. wrote:
| >>I can't mount my first CD-drive (a Cyberdrive CDRW) any more!!!
| >
| >I HAD this same problem too, and I resolved it unloading the IDE-SCSI
| >module, then removing Supermount, then rebooting, then reloading IDE-SCSI
| >module.
|
|
| thanx, this worked for me, too. But then progs like K-CD and Gnome-CD didn't
| find any AudioCDs any more, in none of my two CD-drives ... (now scd0 and
| hdd).
| Anyway, I found the program grip, which can play CDs in any of my drives
| (and of course a lot more ...)
|
| a second way I've found is to disable/delete the kernel-parameter in lilo
| "hdc=ide-scsi" which gives me hdc and hdd as my to CD-drives, but then I
| suppose losing CDRW-functionality - or is there any other reason for the
| ide-scsi-module?
|
| sm
--
I am "Brian, the man from babble-on" (Brian T. Schellenberger).
I can be reached at [EMAIL PROTECTED] http://www.babbleon.org .
I support http://www.eff.org & http://www.programming-freedom.org .
I boycott amazon.com. See http://www.gnu.org/philosophy/amazon.html .
