I used cd-rom to install Slack 9

root@slackware~$ mount /mnt/cdrom
mount: wrong fs type, bad option, bad superblock on /dev/cdrom,
or too many mounted file systems
(could this be the IDE device where you in fact use
ide-scsi so that sr0 or sda or so is needed?)

/etc/fstab:
/dev/cdrom /mnt/cdrom iso9660 noauto,owner,ro 0 0

dmesg:
hdc: SONY CD-RW CRX215E1, ATAPI CD/DVD-ROM drive
scsi0 : SCSI host adapter emulation for IDE ATAPI devices
Vendor: SONY Model: CD-RW CRX215E1 Rev: SYS2
Type: CD-ROM ANSI SCSI revision: 02
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0
sr0: scsi3-mmc drive: 143x/40x writer cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.12

ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 64
isofs_read_super: bread failed, dev=16:00, iso_blknum=16, block=32
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 64
isofs_read_super: bread failed, dev=16:00, iso_blknum=16, block=32
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 64
isofs_read_super: bread failed, dev=16:00, iso_blknum=16, block=32
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 64
isofs_read_super: bread failed, dev=16:00, iso_blknum=16, block=32
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 64
isofs_read_super: bread failed, dev=16:00, iso_blknum=16, block=32
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 64
isofs_read_super: bread failed, dev=16:00, iso_blknum=16, block=32
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 64
isofs_read_super: bread failed, dev=16:00, iso_blknum=16, block=32
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 0
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 2
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 4
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 6
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 64
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 66
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 68
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 70
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 72
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 74
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 76
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 78
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 0
FAT: unable to read boot sector
UMSDOS: msdos_read_super failed, mount aborted.
ide-scsi: hdc: unsupported command in request queue (0)
end_request: I/O error, dev 16:00 (hdc), sector 0

I do have hdc=ide-scsi in lilo, but that should only affect burning.

Any ideas?

Hmmmm... Try this:

Put your CD in the CD-ROM tray. Close CD-ROM tray.
su -
[enter your root password here]
mount -t iso9660 /dev/cdrom /mnt/cdrom
[system should say something like: filesystem mounted read-only]
ls /mnt/cdrom

If the above does not work:
mount -t iso9660 /dev/sr0 /mnt/cdrom

That's all I can think of, off the top of my head... Hope it helps!

snocked@slackware~$ su
Password:
root@slackware/home/snocked$ mount -t iso9660 /dev/cdrom /mnt/cdrom
mount: wrong fs type, bad option, bad superblock on /dev/cdrom,
or too many mounted file systems
(could this be the IDE device where you in fact use
ide-scsi so that sr0 or sda or so is needed?)
root@slackware/home/snocked$ mount -t iso9660 /dev/sr0 /mnt/cdrom
mount: block device /dev/sr0 is write-protected, mounting read-only

Make a symbolic link to the proper device for /dev/cdrom.

ln -sf /dev/sr0 /dev/cdrom

Yes, creating a link to the proper device is a good idea.

Or you can just (as root!) type:

ls /mnt/cdrom/

That should give you access to the CD-ROM itself...

Not if /dev/cdrom points to the wrong device, you will get the error (s)he posted.

I can mount as root, but not as an user. Should I just add users to the fstab next to owner?

I'm afraid that's not quite true. It will affect the device system wide, so your cdrom is /dev/sr0 not /dev/hdc.
Since /dev/cdrom is pointing at /dev/hdc, you need to change the sym link or change /etc/fstab.

root@slackware/home/snocked$ ls -l /dev/cdrom
lrwxrwxrwx 1 root users 8 May 22 03:13 /dev/cdrom -> /dev/hdc
root@slackware/home/snocked$ ln -sf /dev/cdrom /dev/sr0
root@slackware/home/snocked$ ls -l /dev/cdrom
lrwxrwxrwx 1 root users 8 May 22 03:13 /dev/cdrom -> /dev/hdc

Why isn't it changing?

I don't know.

Try this

cd /dev
rm cdrom
ln -s /dev/sr0 cdrom
ls
Did that work?

link was changed:
root@slackware/dev$ ls -l cdrom
lrwxrwxrwx 1 root root 8 Jul 29 09:21 cdrom -> /dev/sr0

but ??
root@slackware~$ ls /dev/cdrom
/dev/cdrom@
root@slackware~$ ls /dev/sr0
/dev/sr0@

root@slackware~$ mount /dev/cdrom
mount: Too many levels of symbolic links
root@slackware~$ ls -l /dev/sr0
lrwxrwxrwx 1 root root 10 Jul 29 09:12 /dev/sr0 -> /dev/cdrom
root@slackware~$ mount /dev/sr0
mount: can't find /dev/sr0 in /etc/fstab or /etc/mtab

umm?

I don't know what you did, probably a typo setting up the symbolic link.

# CD burning info
Is it configured and what is the device? Command this to find out:
cdrecord -scanbus
Adding an IDE CD-Writer to Linux
CD Writing HOWTO
Burning CDs on Linux

Make sure your /etc/fstab is correct as well.

my /dev/sr0 isn't a block device, it's an unknown filetype, but linked to /dev/cdrom

I copied it straight from the reply.

hmm

You may have to re-generate your devices. Do you have the /dev/MAKEDEV script? If so, run that to create the devices again and point /dev/cdrom correctly when finished.

root@slackware~$ cdrecord -scanbus
Cdrecord 2.0 (i686-pc-linux-gnu) Copyright (C) 1995-2002 Jörg Schilling
cdrecord: No such file or directory. Cannot open '/dev/pg*'. Cannot open SCSI driver.
cdrecord: For possible targets try 'cdrecord -scanbus'. Make sure you are root.
cdrecord: For possible transport specifiers try 'cdrecord dev=help'.