Mounting CDRom problem

Gunn · 05-29-2003, 02:04 AM

Hi,
I'm not able to mount the CDROM.
I had use : "mount /dev/cdrom" but it pop up an error " No Medium found"
Anyone know what is the problem?

rgds,
Gunn

log · 05-29-2003, 02:19 AM

sounds like you dont have a CD in the drive?

Gunn · 05-29-2003, 03:03 AM

I had the CD and gives error : mount : Not a directory"

whansard · 05-29-2003, 03:47 AM

do this as root with a data cdrom, not audio, in the drive.
mkdir /mnt/cdrom
mount /dev/cdrom /mnt/cdrom
ls /mnt/cdrom

if you get the error message
/mnt/cdrom/ file exists, ignore it

Gunn · 05-29-2003, 04:52 AM

I had try on " mount /dev/cdrom /mnt/cdrom " but display result as below:

/dev/cdrom: Input/ouput error
mount: block device /dev/cdrom is write protected, mounting read-only
/dev/cdrom: Input/output error
mount: you must specify the filesystem type

michaelk · 05-29-2003, 05:27 AM

What distribution / version are you running? SUSE uses /media/cdrom where as most others use /mnt/cdrom

Post /etc/fstab so we can take a look. It appears that there isn't an entry for the /mnt/cdrom.

Try this:
mount -t iso9660 /dev/cdrom /mnt/cdrom

Gunn · 05-29-2003, 09:28 PM

tried out " mount -t iso9660 /dev/cdrom /mnt/cdrom" but still gives the same error :
mount: block device /dev/cdrom is write protected, mounting read-only
mount: Not a directory

The content of /etc/fstab is as below:

LABEL=/ / ext3 defaults 1 1
none /dev/pts devpts gid=5,mode=620 0 0
none /proc proc defaults 0 0
none /dev/shm tmpfs defaults 0 0
/dev/hdb5 swap swap defaults 0 0
/dev/cdrom /mnt/cdrom udf,iso9660 noauto,owner,kudzu,ro 0 0
/dev/fd0 /mnt/floppy auto noauto,owner,kudzu 0 0

michaelk · 05-29-2003, 09:53 PM

mount: block device /dev/drom is write protected, mount read-only
Is a normal message for mounting a CDROM using the mount command.

mount: Not a directory.

Are you postive that the /mnt/cdrom directory exists?

Do you still get /dev/cdrom input/output errors?

Gunn · 05-29-2003, 10:39 PM

I had checked out if /mnt/cdrom exists or not by typing :
mkdir /mnt/cdrom

and the result is : "mkdir: cannot create directory '/mnt/cdrom/: File exists"

If I type mount -t iso9660 /dev/cdrom /mnt/cdrom, I didn't get any Input/output error

BUT

if type mount /dev/cdrom /mnt/cdrom, I'll get below results:

/dev/cdrom: Input/output error
mount: block device /dev/cdrom is write-protected, mounting read-only
/dev/cdrom: Input/output error
mount: you must specify the filesystem type

yowwww · 05-29-2003, 11:23 PM

maybe it is a file type that is not supported such as windows boot files or an audio cd.

what data is on this cd?
does the cd rom ever work?
r u dual booting? if so, does it work in the other OS?

whansard · 05-29-2003, 11:23 PM

i think that udf part in fstab is messing things up a little.
you can take that out, and then reboot and try your
mount commands again.

Gunn · 05-30-2003, 12:44 AM

The cd is Linux software installer.
My PC is dual boot (Windows and Linux)
The cd can b open in Windows, the cdrom works under Windows

I had take out the udf in /etc/fstab, reboot and try to mount but still get the same error.

whansard · 05-30-2003, 02:18 AM

so you can mount it with
mount -t iso9660 /dev/cdrom /mnt/cdrom

but not with
mount /mnt/cdrom

if those are both true, it is almost surely something in fstab

Gunn · 05-30-2003, 02:31 AM

The cd can b open under Windows platform not in Linux.
I can't mount the cdrom using neither " mount -t iso9660 /dev/cdrom /mnt/cdrom"
nor " mount /mnt/cdrom"

I wonder, does this problem caused by some missing files in /dev?

whansard · 05-30-2003, 03:22 AM

post the output of
ls -l /dev/cdrom

it looks like it is sort of working.
you can try mount -t iso9660 /dev/hdX /mnt/cdrom
replacing the X with b or c or d in turn depending on
whether the cdrom drive is primary slave
secondary master or slave.