Cannot Mount CD-ROM

Kenji Miyamoto · 07-07-2005, 01:24 AM

I'm having some difficulties mounting any data CD. Whenever I attempt a mount, I get this error:

Code:

# mount -t iso9660 /dev/cdroms/cdrom0 /media/cdrom
mount: /dev/cdroms/cdrom0 already mounted or /media/cdrom busy

# mount -t iso9660 /dev/cdroms/cdrom0 /mnt/cdromB
mount: /dev/cdroms/cdrom0 already mounted or /mnt/cdromB busy

# mount -t iso9660 /dev/sr0 /media/cdrom
mount: block device /dev/sr0 is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/sr0,
       or too many mounted file systems

I have SCSI emulation compiled into my 2.6.12-r3 kernel winth udev.

Oddly enough, it does play audio CDs.

Does anyone have any advice on getting it to work?

Kahless · 07-07-2005, 01:49 AM

if your fstab is set up correctly, you should be able to cd to the directory above the one it mounts to, and

#mount cdrom

you shoudnt need anything more than that if its set up right. if not, man mount to find the correct options

Kenji Miyamoto · 07-07-2005, 11:17 PM

I did set up fstab, and no CDs mount, still:

Code:

/dev/sr0                /media/cdrom            auto    user,exec,noauto,managed 0 0
/dev/cdroms/cdrom0              /mnt/dvd        auto            noauto,user,ro                                  0 0

Mounting either one doesn't work. I've tried iso9660, msdos, vfat, and a plethora of other filesystems. Windows says it is "CDFS", which I know is iso9660+Joliet. (In its case. And I did compile in support for it.)

If this of any help, lshw returns this for my drives:

Code:

           *-ide:1
                description: IDE Channel 1
                physical id: 1
                bus info: ide@1
                logical name: ide1
                clock: 33MHz
              *-cdrom:0
                   description: IDE CD-ROM
                   product: SAMSUNG DVD-ROM SD-616Q
                   physical id: 0
                   bus info: ide@1.0
                   logical name: /dev/hdc
                   version: F401
                   capabilities: packet atapi cdrom removable nonmagnetic dma lba iordy
                   configuration: mode=udma2
              *-cdrom:1
                   description: IDE CD-ROM
                   product: ATAPI CD-RW 52X24
                   physical id: 1
                   bus info: ide@1.1
                   logical name: /dev/hdd
                   version: F.CZ
                   capabilities: packet atapi cdrom removable nonmagnetic dma lba iordy
                   configuration: mode=udma2
     *-scsi:0
          physical id: 1
          logical name: scsi0
          capabilities: emulated
        *-cdrom
             description: DVD reader
             product: DVD-ROM SD-616Q
             vendor: SAMSUNG
             physical id: 0.0.0
             bus info: scsi@0:0.0.0
             logical name: /dev/cdrom2
             logical name: /dev/dvd1
             logical name: /dev/scd0
             logical name: /dev/sr0
             version: F401
             capabilities: removable audio dvd
             configuration: ansiversion=2
     *-scsi:1
          physical id: 2
          logical name: scsi1
          capabilities: emulated
        *-cdrom
             description: CD-R/CD-RW writer
             product: CD-RW 52X24
             vendor: ATAPI
             physical id: 0.0.0
             bus info: scsi@1:0.0.0
             logical name: /dev/scd1
             logical name: /dev/sr1
             version: F.CZ
             capabilities: removable audio cd-r cd-rw
             configuration: ansiversion=2

I've tried several forums, and none of the advice has gotten either of my drives working.

Michael Johnson · 07-08-2005, 12:49 AM

Try this command as root
#umount /mnt/dvd
(may give an error not mounted). then
#mount /mnt/dvd
Then try
#ls /mnt/dvd

Kenji Miyamoto · 07-08-2005, 11:58 AM

Maybe there's something wrong with my kernel:

Code:

# umount /media/cdrom
umount: /media/cdrom: not mounted
# mount /dev/sr0
mount: block device /dev/sr0 is write-protected, mounting read-only
mount: you must specify the filesystem type
# ls /media/cdrom
#

Code:

# umount /mnt/dvd
umount: /mnt/dvd: not mounted
# mount /dev/cdroms/cdrom0
Segmentation fault
# ls /mnt/dvd
#

Michael Johnson · 07-09-2005, 02:30 AM

do this again but as I specified. Your mount point is im fstab is /mnt/dvd NOT /mnt/cdrom. If you are mounting a dvd the file type is udf not iso9660.