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mathio
n00b
Joined: 07 Oct 2006
Posts: 18
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 Posted: Thu Oct 26, 2006 9:06 pm Post subject: Unable to load CD-ROM |
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Hello,
I installed Gentoo few weeks ago but suddenly I need to use a CD-ROM but its not working.
This is part my of /etc/fstab, but I didnt edit it since install (so this is I supose the default value):
| Code: | | /dev/cdroms/cdrom0 /mnt/cdrom auto noauto,ro 0 0 |
When I insert CD, nothing happens. There is no suchdevice as /dev/cdrom or /dev/cdroms/cdrom0 or any other that could be the CD-ROM. My CD-ROM is plugged via ATA (harddisks via SATA). Actually I have only ATA CD-ROM driver compiled in kernel (I also tried the SATA - just in case), but after booting gentoo there is no masseage about CD-ROM in dmesg. The CD-ROM is TEAC Combo (DVD/CD-RW) Drive.
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mrknowitall
Apprentice
Joined: 02 Feb 2005
Posts: 173
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| Posted: Thu Oct 26, 2006 10:43 pm Post subject: |
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hi mathio,
what do you get, when you type in | Code: | | ls -lisa /dev/cdroms/cdrom0 |
?
do you have | Quote: | | Include IDE/ATAPI CDROM support |
enabled?
cheers!
alex
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jansk
Apprentice
Joined: 09 Aug 2004
Posts: 164
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| Posted: Fri Oct 27, 2006 1:29 am Post subject: |
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Hello,
I believe I have the same problem, so rather than starting new thread I'm posting in this one, I hope you don't mind.
My CDROM was working fine, but few days ago when I wanted to read some CDs I got this message:
| Quote: | jan@laura /usr/src/linux $ mount /mnt/cdrom/
mount: I could not determine the filesystem type, and none was specified |
My /etc/fstab file is the same so I suppose this is not the cause of the problem:
| Quote: | | /dev/cdrom /mnt/cdrom auto user,unhide,noauto,exec 0 0 |
Further investigation was carried out as follows:
| Quote: |
$/usr/src/linux $ uname -a
Linux laura 2.6.17-gentoo-r8 #1 SMP Tue Oct 3 10:17:01 JST 2006 i686 Intel(R) Pentium(R) 4 CPU 3.00GHz GNU/Linux
$/usr/src/linux $ pwd
$/usr/src/linux
$/usr/src/linux $ cat .config | grep CONFIG_BLK_DEV_IDECD
CONFIG_BLK_DEV_IDECD=y
$/usr/src/linux $ ls -lisa /dev/cdroms/cdrom0
ls: /dev/cdroms/cdrom0: No such file or directory
$/usr/src/linux $ ls -lisa /dev/cdrom
ls: /dev/cdrom: No such file or directory |
Include IDE/ATAPI CDROM support is enabled, thus it's strange there are no cdrom devices in /dev neither in dmesg output.
Matio, can you pls post what is it like on your machine ?
Any ideas appreciated 
Jan |
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mathio
n00b
Joined: 07 Oct 2006
Posts: 18
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| Posted: Sat Oct 28, 2006 12:22 pm Post subject: |
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| mrknowitall wrote: | hi mathio,
what do you get, when you type in | Code: | | ls -lisa /dev/cdroms/cdrom0 |
? |
| Code: | # ls -lisa /dev/cdroms/cdrom0
ls: /dev/cdroms/cdrom0: No such file or directory |
As I said in first post, there are no devices i /dev that could be the CD-ROM 
| mrknowitall wrote: | do you have | Quote: | | Include IDE/ATAPI CDROM support |
enabled? |
I do but it doesnt seem to help.
Is there any command like lspci that would list my hardware including CD-ROM?
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g0rg0n
Tux's lil' helper
Joined: 18 Feb 2006
Posts: 98
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| Posted: Sat Oct 28, 2006 12:26 pm Post subject: |
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instead of /dev/cdroms/cdrom0
try /dev/hdc
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mathio
n00b
Joined: 07 Oct 2006
Posts: 18
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| Posted: Sat Oct 28, 2006 5:56 pm Post subject: |
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| Code: | # ls -l /dev/hd*
ls: /dev/hd*: No such file or directory |
Doesnt work either
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jansk
Apprentice
Joined: 09 Aug 2004
Posts: 164
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| Posted: Mon Oct 30, 2006 1:52 am Post subject: |
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Hello guys!
In case of SATA drives, Mathio migth have his CD-ROM on /dev/sdc ...
Mathio, what's the version of kernel you're using ?
On my machine, neither /dev/hdc nor /dev/sdc are available.
Did we forgot to compile something in?
Jan |
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mathio
n00b
Joined: 07 Oct 2006
Posts: 18
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| Posted: Mon Oct 30, 2006 9:38 am Post subject: |
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My version of a kernel:
| Code: | $ uname -r
2.6.17-gentoo-r8 |
My SATA and ATA devices available:
| Code: | $ ls /dev/sd*
/dev/sda /dev/sda1 /dev/sda2 /dev/sda3 /dev/sda4 /dev/sdb /dev/sdb1
$ ls -l /dev/hd*
ls: /dev/hd*: No such file or directory |
(/dev/sda and /dev/sdb are my hard disks)
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jansk
Apprentice
Joined: 09 Aug 2004
Posts: 164
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| Posted: Mon Oct 30, 2006 11:00 pm Post subject: |
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Hello,
I tried to boot linux-2.6.16-gentoo-r7 kernel. With this kernel CDROM works like a charm.
| Code: |
$ ls -lisa /dev/cdrom
4832 0 lrwxrwxrwx 1 root root 3 2006-10-31 07:48 /dev/cdrom -> hda
$ ls -lisa /dev/cdrw
4833 0 lrwxrwxrwx 1 root root 3 2006-10-31 07:48 /dev/cdrw -> hda |
I'll check if there are any differences in the config of my 2.6.16-r7 kernel and the 2.6.17-r8 kernel and I'll post the results later.
Cheers,
Jan |
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jansk
Apprentice
Joined: 09 Aug 2004
Posts: 164
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| Posted: Mon Nov 20, 2006 1:50 am Post subject: |
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Hello,
I compared configuration of my older kernel with working CD-ROM and I found that I ommit
flags:
CONFIG_IDE_GENERIC (generic/default IDE chipset support) and
BLK_DEV_GENERIC (Generic PCI IDE Chipset Support) in
"Device Drivers > ATA/ATAPI/MFM/RLL support" config menu.
I'm running kernel linux-2.6.18-gentoo-r2 at the moment with CD-ROM (actually DVD burner) working flawlessly.
Jan
p.s. if this solves Mathio's problem, pls add tag [SOLVED] to the subject of this thread |
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