CD-ROM Issues

[Matthew D. Cristantello]

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
****************************************************************************