Error w/DVD drive...can't mount DVDs

JockVSJock · 10-16-2006, 03:52 PM

Running Slackware 11.0 w/2.4 kernel

I have a cdrom reader and dvd reader on the same IDE flat cable and they are on the same controller on a new motherboard...

When I go to mount a DVD, I get the following error:

Code:

media@lambda:/mnt$ sudo mount -t iso9660 /dev/dvd /mnt/dvd
Password:
mount: block device /dev/dvd is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/dvd,
       missing codepage or other error
       (could this be the IDE device where you in fact use
       ide-scsi so that sr0 or sda or so is needed?)
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

I have the following as an entry in /etc/fstab

Code:

 
/dev/dvd         /mnt/dvd         iso9660     noaudo,user,ro   0   0

I've also gone thru /var/log/messages and don't see anything odd, now when I do go thru dmesg, I see the following:

Code:

root@lambda:/var/log# dmesg | more
 sector 348
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 352
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 356
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 360
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 364
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 368
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 372
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 376
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 380
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 384
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 388
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 392
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 396
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 120
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 124
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 120
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 124
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 0
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 4
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 0
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 4
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 0
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 4
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 8
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 12
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 16
hdc: tray open
end_request: I/O error, dev 16:00 (hdc), sector 20
cdrom: open failed.

And I know that dvd points to hdc...

Code:

root@lambda:/var/log# ls -al /dev/dvd
lrwxrwxrwx 1 root root 8 2006-10-14 17:47 /dev/dvd -> /dev/hdc

I'm not sure what is going on, the bay tray is closed to the DVD
player, so why the error messages appear from dmesg, I don't know...anyone have any ideas?

thanks

michaelk · 10-17-2006, 07:16 AM

Quote:

on a new motherboard

Explain, replaced motherboard but had existing linux installation? Did you change anything else with the new motherboard?

Check the entire output of the dmesg command to see if both drives are being recognized.

Have you tried the CDROM drive? Does it work correctly?

JockVSJock · 10-17-2006, 08:34 AM

Negative, it is a brand new Slackware 11 installation.

Both drives are recognized because I can read files from cdr from the cdrom drive.

I think the DVD drive is bad...it was made in 1999...

michaelk · 10-17-2006, 11:36 AM

FYI
Typically iso9660 is a CD data filesystem and DVDs use the udf filesystem. What is on the DVD? Have you tried to mounting a regular data CD? More then likely the drive is bad due to the tray open fault.

JockVSJock · 10-17-2006, 11:59 AM

Hey, thanks for the help with the DVD drive.

Hopefully this thread will help others out.