cdrom not mounting on knoppix 3.8.1 hd install

[patitoconejita]

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Hello,

I've installed various versions of knoppix to hard drive, but never encountered this problem. CDROMs are recognized and are mounted without problems when running knoppix from the CD, but on my hd install with this particular version (that uses kernel 2.6.11):

# mount /cdrom
mount: /dev/cdrom is not a valid block device

Same thing for my slave CDROM drive. I believe the relevant fstab lines are fine (they worked for me in the past):

# cat /etc/fstab | grep cdrom
/dev/cdrom /cdrom  iso9660  defaults,ro,user,noexec,noauto  0  0
/dev/cdrom1 /cdrom1  iso9660  defaults,ro,user,noexec,noauto  0  0

So I checked dmesg, and what's on /dev/cdrom and /dev/cdrom1 (I have two CDROM drives):

# dmesg | grep CD
hdc: HL-DT-ST RW/DVD GCC-4481B, ATAPI CD/DVD-ROM drive
hdd: HL-DT-ST DVDRAM GSA-4120B, ATAPI CD/DVD-ROM drive
# ls -l /dev/cdrom /dev/cdrom1
lrwxrwxrwx  1 root root 8 Apr 17 14:13 /dev/cdrom -> /dev/hdc
lrwxrwxrwx  1 root root 8 Apr 17 14:13 /dev/cdrom1 -> /dev/hdd

At this point I don't know what to do to get the CDROMs working, and some help would be most appreciated!

Thanks in advance.

[serz]

May I ask what are you trying to mount? Is this a normal cd?

[patitoconejita]

May I ask what are you trying to mount? Is this a normal cd?

I tried mounting both data and music cds; it didn't make any difference.

[serz]

Well, you don't have/need to mount audio-cds, data cds should work just fine..

Are you using a kernel you compiled yourserlf?

[patitoconejita]

Well, you don't have/need to mount audio-cds, data cds should work just fine..

You're right, I just wanted to see if I could mount them and read its contents. In short, the problem doesn't seem to be related to the type of CD; somebody asked me to check whether it's possible to communicate with the drive. So I did

# eject /dev/cdrom1
eject: unable to open `/dev/hdd'

Are you using a kernel you compiled yourserlf?

No, it's the 2.6.11 that knoppix 3.8.1 comes with, which I installed with knoppix-installer, and choosing the "debian-like" installation option.

[serz]

How are the permissions of /dev/hdc and /dev/hdd set?

[pascalv]

Hello,

I've installed various versions of knoppix to hard drive, but never encountered this problem. CDROMs are recognized and are mounted without problems when running knoppix from the CD, but on my hd install with this particular version (that uses kernel 2.6.11):

I am having exactly the same problem