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Old 11-21-2008, 12:00 PM   #1
rsamurti
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Failed to mount CD/DVD


Hello,

In Zenwalk Snapshot if I insert some CD's or DVD's I get the error message:

Failed to mount "DVD-R Disc".
Method "Mount" with signature "ssas" on interface "org.freedesktop.Hal.Device.Volume" doesn't exist

But many CD's and DVD's mount perfectly. I am not able to solve this problem. Any solutions?

Thanks for your help,

Anand
 
Old 11-21-2008, 04:42 PM   #2
x_terminat_or_3
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Hi Anand

First thing I would check is hardware errors.

After you get your failed to maunt message, open op a konsole, or terminal window, and type in

Code:
dmesg
There will be a whole lot of messages flying past your screen, but look at the last few. There might be something like:

Quote:
end_request: I/O error, dev sr0, sector 15114936
Buffer I/O error on device sr0, logical block 3778734
end_request: I/O error, dev sr0, sector 15114936
Buffer I/O error on device sr0, logical block 3778734
end_request: I/O error, dev sr0, sector 15114936
Buffer I/O error on device sr0, logical block 3778734
end_request: I/O error, dev sr0, sector 15114936
Buffer I/O error on device sr0, logical block 3778734
sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
end_request: I/O error, dev sr0, sector 7479528
sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
sr 4:0:0:0: [sr0] Sense Key : Medium Error [current]
Now, I know, that on my system, the dvd drive is called sr0, to find out what yours is really called, you can do

Code:
readlink /dev/dvd
If you see any messages like the above, then it is most likely an issue with the actual disc you are using.
 
Old 11-21-2008, 10:02 PM   #3
rsamurti
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Hi x_terminat_or_3,

Thanks for your quick reply. I tried what you have suggested and got the message given below:

sr 2:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
sr 2:0:0:0: [sr0] Sense Key : 0x3 [current]
Info fld=0x10
sr 2:0:0:0: [sr0] ASC=0x2 ASCQ=0x0
end_request: I/O error, dev sr0, sector 64
Buffer I/O error on device sr0, logical block 8

My DVD writer device is sr0.

But this DVD mounts properly in Windows. So, what should I do to correct this? Is this a media problem?

Anand
 
Old 11-22-2008, 07:40 AM   #4
x_terminat_or_3
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It does mention an I/O error, but if there's only one it may not be all that bad.

If this is a DVD with data on that you want to read, try mounting it manually.

To mount any kind of file system, including DVDs, you need a mount point. Many people use /mnt/something

Open a terminal or console, log on as root, and create the mount point:

Code:
mkdir /mnt/dvd
If it complains that it already exists, that's ok, so much the better.

Now, try to mount the DVD

Code:
mount /dev/sr0 /mnt/dvd
If that was successful, there will be no output. You can then proceed to look at the files in /mnt/dvd

In case it's a DVD you are trying to watch, know that you *do not* need to mount it to play it. Simply insert the DVD in your drive, close the drive, and in your viewer (xine, mplayer, . . .) press the button that says DVD, or start it like this: xine "dvd://" or mplayer "dvd://"

Hope this helps
 
  


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