Strange permissions on mounted dvd

Jonas Norlander jonorland at gmail.com
Tue Dec 23 08:55:37 UTC 2008


2008/12/20 Jonas Norlander <jonorland at gmail.com>:
> Hi!
>
> I have installed Intrepid on a friends computer (trying to convert him).
> But i have problem with the permissions on mounted dvd/cd. It looks to
> be HAL related but i have no idea where to go from here. I hoping for
> the community for a fast fix before he gives up and reinstalling
> Windows XP.
>
> Permissions in /media before and after a DVD is mounted. Makes no
> difference if i mount it with mount from a terminal or from dolphine.
>
> $ ls -l /media/
> lrwxrwxrwx 1 root root    6 2008-11-20 19:06 cdrom -> cdrom0
> drwxr-xr-x 2 root root 4096 2008-11-20 19:06 cdrom0
>
> $ ls -l /media/
> lrwxrwxrwx  1 root       root          6 2008-11-20 19:06 cdrom -> cdrom0
> dr--r--r-- 30 4294967295 4294967295 3024 2008-08-02 11:17 cdrom0
>
> See that strange owner and group id on the mountpoint?
>
> $ LANG=C ls -l /media/cdrom0/
> ls: cannot access /media/cdrom0/20 Golden Love Songs Vol.1 (2007) -
> Easy Listening: Permission denied
> ls: cannot access /media/cdrom0/A Tribute To Abba (metal): Permission denied
> <snip>
> ?????????? ? ? ? ?            ? 20 Golden Love Songs Vol.1 (2007) -
> Easy Listening
> ?????????? ? ? ? ?            ? A Tribute To Abba (metal)
>
> No problems as root:
> $ sudo LANG=C ls -l /media/cdrom0/
> total 76
> dr--r--r--  2 4294967295 4294967295 2736 Jul 30 00:16 20 Golden Love
> Songs Vol.1 (2007) - Easy Listening
> dr--r--r--  2 4294967295 4294967295 1576 May 24  2008 A Tribute To Abba (metal)
>
> Output from mount for the dvd:
> /dev/scd0 on /media/cdrom0 type udf (ro,nosuid,nodev,utf8,user=stefan)
>
> $ grep stefan /etc/passwd
> stefan:x:1000:1000:Stefan Gjersvold:/home/stefan:/bin/bash
>
> $ groups stefan
> stefan adm dialout cdrom audio video plugdev users scanner lpadmin
> admin sambashare
>
> I have searched the net and ubuntu bugs but no clues. I don't know
> where to go from here. Has someone seen something like this before or
> know what the cause could be?
>
> / Jonas
>

I was really hoping that someone had a solution or an idea how to "debug" this?

/ Jonas




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