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Old 09-04-2004, 01:02 AM   #1
Registered: Jun 2003
Location: Virginia
Distribution: Slackware 10.1
Posts: 180

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DVD Mount Problem


I just put Slackware 10.0 on my computer and I have been slowly going through everything making sure all the hardware and software is working well together. Tonight I decided to work on the DVD writer. I really only wanted it as a CD writer for now, I'll work on gettig it to write DVDs later.

I managed to get the scsi emulation going(I am using the default 2.4.26 kernel) and it can write CDs without a problem. The drive will play music CDs and mount and browse data CDs without a problem. Where I hit a problem is with DVDs. When I try to mount a DVD I get the following error:

# mount /mnt/dvd
mount: No medium found

Here is my fstab entry for the drive:
/dev/dvd /mnt/dvd auto noauto,users,ro 0 0

/dev/dvd is a link to /dev/sr1, which is the correct device with the scsi-emulation enabled. I changed all the permissions so that users should be able to access the drive without a problem. I am sure the drive itself is working because it can create CDs, play audio CDs, and read data CDs without a problem. It is just DVDs that are not working and they should, I know on Windows DVDs will play without a problem so it isn't a problem with the drive itself.

Any help would be appreciated.

Old 09-04-2004, 05:57 AM   #2
Registered: Nov 2003
Location: UK
Distribution: Debian Lenny
Posts: 255

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try adding this to your fstab file
/dev/hdc /media/dvd (subfs) nosuid,nodev,fs=cdfss,procuid,iocharset=utf8 0 0

and mount it

Last edited by chutsu; 09-04-2004 at 05:58 AM.
Old 09-04-2004, 08:32 AM   #3
Registered: Jun 2003
Location: Virginia
Distribution: Slackware 10.1
Posts: 180

Original Poster
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I tried that, I changed it a little to fit my system:

/dev/hdd /mount/dvd (subfs) nosuid,nodev,fs=cdfss,procuid,iocharset=utf8 0 0

and I tried to mount it, but I got this error:

# mount /mnt/dvd
mount: fs type (subfs) not supported by kernal

Any other ideas?

Old 09-04-2004, 08:39 AM   #4
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Registered: Aug 2003
Location: Barcelona, Catalunya
Distribution: Gentoo
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Try to link /dev/dvd to /dev/hdd instead of /dev/sr1

Hope it helps
Old 09-04-2004, 09:43 AM   #5
Registered: Jun 2003
Location: Virginia
Distribution: Slackware 10.1
Posts: 180

Original Poster
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I changed the link back to /dev/hdd and tried mounting it and I get this:

#mount /mnt/dvd
mount: wrong fs type, bad option, bad superblock on /dev/hdd, or could be too many mounted file systems
(could this be the IDE device where you in fact use ide-scsi so that sr0 or sda or so is needed?)

I also tried mounting it manually:
# mount /dev/dvd /mnt/dvd
/dev/dvd: Input/output error
mount: you must specify the filesystem type

I just remembered that the last time I played a DVD on Linux was when I still had Slackware 9.1, so I suppose something could have changed between 9.1 and 10.0 which is causing my DVD drive to no longer play DVDs. However, I have no idea what that might be.
Old 09-28-2004, 09:28 AM   #6
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Registered: Sep 2004
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I have a similar problem to this in Fedora Core 2.

I can read files from CDs without a problem however I cannot read a DVD.

Both my /dev/cdrom and /dev/dvd are linked to /dev/hdc

mount /dev/dvd /mnt/dvd
/dev/dvd: Input/output error
mount: block device /dev/dvd is write-protected, mounting read-only
/dev/dvd: Input/output error
mount: /dev/dvd: can't read superblock

Any ideas would be greatly appreciated.


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