cannot mount cd
 

My CD-ROM drive worked fine during installation, and also used to work fine under my old Fedora 6 installation where I could play audio CDs and read data CDs without any problems. However, when trying to use CDs under OpenSUSE 10.3 after installation, I cannot mount it either automatically nor manually. If I try to mount it manually, the command just "hangs", and nothing happens (I'm not able to get the command prompt back, nor kill the mounting process). I have the same problem for audio CDs and data CDs. The drive clearly works, since if I plug in a live-linux CD, it's recognized at boot-up, and I'm able to boot from that CD.

From Hardware information under YaST I get the following information:

66: SCSI 400.0: 10602 CD-ROM (DVD)
[Created at block.237]
UDI: /org/freedesktop/Hal/devices/storage_model_DVD_C__LH52C1P
Unique ID: twPO.96dYV9sIpoD
Parent ID: qnJ_.kOf6HnwGAe2
SysFS ID: /block/sr0
SysFS BusID: 4:0:0:0
SysFS Device Link: /devices/pci0000:00/0000:00:0d.0/host4/target4:0:0/4:0:0:0
Hardware Class: cdrom
Model: "LITE-ON DVD C LH52C1P"
Vendor: "LITE-ON"
Device: "DVD C LH52C1P"
Revision: "6L14"
Driver: "pata_amd", "sr"
Driver Modules: "pata_amd"
Device File: /dev/sr0 (/dev/sg1)
Device Files: /dev/sr0, /dev/scd0, /dev/disk/by-path/pci-0000:00:0d.0-scsi-0:0:0:0, /dev/cdrom, /dev/cdrw, /dev/dvd
Device Number: block 11:0 (char 21:1)
Features: CD-R, CD-RW, DVD
Drive status: no medium
Config Status: cfg=no, avail=yes, need=no, active=unknown
Attached to: #39 (IDE interface)
Drive Speed: 40

If I do hwinfo --cdrom, I get

block.5: /dev/sr0

I'm no Linux expert, but I hope that someone can help me. OpenSUSE has been great except for this problem, which is odd since the CD drive worked fine under Fedora.

Thanks!
Kristian

cd drive
 

post your /etc/fstab

also, show what command you are using to mount the drive.

I've tried the following mounting commands (among others)

mount /dev/cdrom /mnt
mount -t iso9660 -r /dev/cdrom /mnt
mount /dev/sr0 /mnt
mount -t iso9660 -r /dev/sr0 /mnt

all with the same result (command just hangs). I've also tried to mount in other places, such as to /media instead of /mnt. (cdrom is sym-linked to sr0)

My /etc/fstab reads

/dev/disk/by-id/scsi-SATA_WDC_WD2500JS-00_WD-WCANY2598050-part6 / ext3 acl,user_xattr 1 1
/dev/disk/by-id/scsi-SATA_WDC_WD2500JS-00_WD-WCANY2598050-part7 /home ext3 acl,user_xattr 1 2
/dev/disk/by-id/scsi-SATA_WDC_WD2500JS-00_WD-WCANY2598050-part1 /windows/C ntfs-3g users,gid=users,fmask=133,dmask=022,locale=POSIX 0 0
/dev/disk/by-id/scsi-SATA_WDC_WD2500JS-00_WD-WCANY2598050-part5 swap swap defaults 0 0
proc /proc proc defaults 0 0
sysfs /sys sysfs noauto 0 0
debugfs /sys/kernel/debug debugfs noauto 0 0
devpts /dev/pts devpts mode=0620,gid=5 0 0

looking from your commands, it seems like its a sata drive, correct? the way your fstab is mounting your hard drive is through /dev/disk/by-id/... so maybe see if your cdrom drive is in there, and if so, mount from there.

I couldn't find it in there but your suggestion lead me to try mounting using the command

mount /dev/disk/by-path/pci-0000:00:0d.0-scsi-0:0:0:0 /media

This works for data CDs, which is a huge step forward!

However, when trying to mount an audio CD (retail, not home made) with the same command I get the error

mount: block device /dev/sr0 is write-protected, mounting read-only
mount: you must specify the filesystem type

If I instead try

mount -t iso9660 /dev/disk/by-path/pci-0000:00:0d.0-scsi-0:0:0:0 /media

I get the error

mount: block device /dev/sr0 is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/sr0,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

dmesg | tail gives me

end_request: I/O error, dev sr0, sector 0
end_request: I/O error, dev sr0, sector 0
end_request: I/O error, dev sr0, sector 0
end_request: I/O error, dev sr0, sector 0
end_request: I/O error, dev sr0, sector 0
cdrom: sr0: mrw address space DMA selected
end_request: I/O error, dev sr0, sector 64
isofs_fill_super: bread failed, dev=sr0, iso_blknum=16, block=16
end_request: I/O error, dev sr0, sector 64
isofs_fill_super: bread failed, dev=sr0, iso_blknum=16, block=16

You may want to look at this. I gave you this since you have mentioned something like openSUSE 'hangs'!

If these are normal audio discs, then they cannot be mounted because they do not have a valid iso filesystem (hence the filesystem errors). You need to use a multimedia app to play the audio on the disc.

Thanks!

I think it's all working now. I'm able to read data CDs using the mounting command listed below, and also play CDs using a number of different multimedia applications.