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#1 2009-05-18 01:00:24

pauldonnelly
Member
Registered: 2006-06-19
Posts: 776

The Amazing Vanishing CD-ROM

I'm having a problem where my CD drive seems to be set up properly at boot, but at some point it vanishes from /dev.

Last reboot, I had /dev/cd/*, /dev/cdrom, /dev/cdrom0, and /dev/sr0, and I could mount /dev/cdrom without issue. Now, about 20 hours later (with no suspend, shutdown, or anything), I've got only /dev/cdrom0 and /dev/sr0, but mounting the former just prints "mount: special device /dev/cdrom0 does not exist" (it's a symlink to /dev/cd/cdrom-1:0:0:0, which is gone), and the latter "/dev/sr0: unknown device". "dmesg|grep CD" doesn't show anything interesting.

Anybody know what the heck could be going on?

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#2 2009-05-18 01:35:11

pauldonnelly
Member
Registered: 2006-06-19
Posts: 776

Re: The Amazing Vanishing CD-ROM

Actually, /dev/sr0 (which seems to be the root of the problem) only show up on some reboots.

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#3 2009-05-18 01:53:37

lucke
Member
From: Poland
Registered: 2004-11-30
Posts: 4,018

Re: The Amazing Vanishing CD-ROM

Grepping dmesg for sr0 reveals anything?

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#4 2009-05-18 02:47:30

pauldonnelly
Member
Registered: 2006-06-19
Posts: 776

Re: The Amazing Vanishing CD-ROM

lucke wrote:

Grepping dmesg for sr0 reveals anything?

I thought I'd tried that and it was the same as for CD... but actually I've got some "Buffer I/O error on device sr0, logical block XX", where XX is a number. I'm not sure if this is a problem though, because it seems to be working at the moment.

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#5 2009-05-18 02:51:50

lucke
Member
From: Poland
Registered: 2004-11-30
Posts: 4,018

Re: The Amazing Vanishing CD-ROM

Perhaps your connector is loose.

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#6 2009-05-18 03:03:17

pauldonnelly
Member
Registered: 2006-06-19
Posts: 776

Re: The Amazing Vanishing CD-ROM

lucke wrote:

Perhaps your connector is loose.

Crossed my mind. It's a laptop and I'm not sure how to get at it, but it's on the list of things to check.

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#7 2009-05-20 15:28:53

stoci
Member
Registered: 2008-10-15
Posts: 2

Re: The Amazing Vanishing CD-ROM

autofs running?

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