CD-ROM Issues

[Robert Dege]

If it's kernel related, I'd check that you have to correct modules
compiled/installed:

iso9660.o and ide-cd.o

Of course, they could also be compied in the kernel, but then again, you
wouldn't be having this problem if they were.

-Rob

> Yeah, I went back to 2.2.17 kernel that shipped with Debian when I first
> installed it, cd mounted and worked perfectly with all the same fstab
> settings in my previous email.
>
> Anyone know if there are any new settings in the 2.4 kernels that deal
> with cd-roms? I've been through it a few times now, but haven't been
> able to figure out which settings might be wrong.
>
> Thanks,
> ~Matt
>
> On Fri, 2003-11-07 at 21:46, Robert Todd wrote:
> > Tried going back to an earlier kernel?
> >
> > 	-----Original Message-----
> > 	From: owner-nflug at nflug.org on behalf of Matthew D. Cristantello
> > 	Sent: Fri 11/7/2003 9:09 PM
> > 	To: nflug at nflug.org
> > 	Cc:
> > 	Subject: CD-ROM Issues
> >
> >
> >
> > 	Hey All,
> >
> > 	I've been lurking on the mailing list for about a month now, am hoping
> > 	you can help me with an inexplicable issue with my cdrom drive. Sorry
> > 	about the length of this message, but I'm trying to include all relevant
> > 	info.
> >
> > 	The short version is that whenever I put in a cd and try to mount it, my
> > 	computer hard crashes. If I fiddle with /etc/fstab a bit and change the
> > 	fstype to 'auto' instead of 'iso9660', it doesn't crash and I get an
> > 	error message instead (details below).
> >
> > 	I'm running debian unstable (sid) fully up to date (I ran 'apt-get
> > 	update' then 'apt-get dist-upgrade' today), on a 2.4.22 kernel.
> > 	matt at mongoose:~$ uname -a
> > 	Linux mongoose 2.4.22 #2 Thu Nov 6 20:41:31 EST 2003 i686 GNU/Linux
> >
> > 	I'm pretty sure the permissions to /dev/hdc are not the problem, as I've
> > 	tried mounting both as me (matt, who is a member of the audio group) and
> > 	as root. Permissions are as follows:
> >
> > 	matt at mongoose:~$ ls -al /dev/hdc
> > 	brw-rw----    1 root     audio     22,   0 Jul  5  2000 /dev/hdc
> >
> > 	My entry in /etc/fstab is:
> > 	/dev/hdc        /cdrom          auto    defaults,ro,user        0 0
> >
> > 	but this entry causes the system to lock up on mounting:
> > 	/dev/hdc        /cdrom          is09660  defaults,ro,user       0 0
> >
> > 	Here's what I get when I attempt to mount:
> > 	matt at mongoose:~$ mount /cdrom/
> > 	/dev/hdc: Input/output error
> > 	mount: I could not determine the filesystem type, and none was specified
> >
> > 	The kernel is detecting the drive at boot, I get these messages from
> > 	kern.log:
> > 	Nov  6 23:05:21 mongoose kernel: hdc: SAMSUNG SCR-3232, ATAPI CD/DVD-ROM
> > 	drive
> > 	Nov  6 23:05:21 mongoose kernel: hdc: attached ide-cdrom driver.
> > 	Nov  6 23:05:21 mongoose kernel: hdc: ATAPI 32X CD-ROM drive, 128kB
> > 	Cache, DMA
> > 	Nov  6 23:05:21 mongoose kernel: Uniform CD-ROM driver Revision: 3.12
> >
> > 	As suggested over at the LDP CDROM-HOWTO, I tried these commands and got
> > 	the following results:
> > 	matt at mongoose:~$ dd if=/dev/cdrom of=/dev/null bs=2048
> > 	dd: reading `/dev/cdrom': Input/output error
> > 	0+0 records in
> > 	0+0 records out
> > 	0 bytes transferred in 3.295555 seconds (0 bytes/sec)
> > 	matt at mongoose:~$ dd if=/dev/hdc of=/dev/null bs=2048
> > 	dd: reading `/dev/hdc': Input/output error
> > 	0+0 records in
> > 	0+0 records out
> > 	0 bytes transferred in 4.065978 seconds (0 bytes/sec)
> >
> > 	The thing that really confuses me is that my cd drive worked fine a few
> > 	months ago (this has been an ongoing problem), but it worked perfectly
> > 	when I put in a Knoppix CD last night and booted off that. So it's
> > 	definitely something wrong with my kernel or system configuration, but I
> > 	can't figure out what.
> >
> > 	Thanks in advance for your help!
> > 	~Matt
> >
> >
> > 	****************************************************************************
> > 	"Technological progress has merely provided us with more efficient means
> > 	for going backwards."
> > 	-Aldous Huxley
> > 	****************************************************************************
> > 	        Matthew D. Cristantello
> > 	        matt at crazy42.org
> > 	        716-472-3833 (cell)
> > 	        AIM: Matt977
> > 	****************************************************************************
> >
> >
> ****************************************************************************
> "don't let the world wrap up around you, don't forget to call whenever,
> i'll be here just waiting for you, i'll be under your stars forever,
> neither here, nor there, just right beside you"
> -Smashing Pumpkins
> ****************************************************************************
>         Matthew D. Cristantello
>         matt at crazy42.org
>         716-472-3833 (cell)
>         AIM: Matt977
> ****************************************************************************
>
>



Dege

I'm just not up2date on my al-kee-hol-*hic* lingo
Although, I do have that slurring part down ;)