[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: device file permissions the debian way

On Sat, Sep 17, 2005 at 06:35:06PM +0100, Antony Gelberg wrote:
> Haines Brown wrote:
> >I'm trying to set up a new installation of debian so that user can
> >play DVDs. I have debian sarge 2.6.8-2-686, an IDE dvd drive, gxine
> >0.4.1-1, libdvdread3-0.9.4-5. I can play .mp3 files OK with gzine.
> >
> >I created a dvd symlink:
> >
> >  $ ls -l /dev/dvd
> >  lrwxrwxrwx  1 root root 3 Sep 11 08:25 /dev/dvd -> hdc
> >
> >I can play a dvd as root, but not as user. To play as user I am forced
> >to use a 666 permission for the device file, which is not the debian way: 
> >
> >  $ ls -l /dev/hdc
> >  brw-rw-rw-  1 root disk 22, 0 Jul 31 18:54 /dev/hdc  
> >
> >To do things the debian way, I should give /dev/hdc 660 permission and
> >add the user to the disk group, but it doesn't work.
> I'm not sure you should ever add a normal user to the disk group.  I 
> also don't think you should add symlinks in /dev, although that is less 
> dangerous.  Where is it written that this is TDW?
> You may wish to investigate udev.  It should give /dev/hdc the correct 
> group of cdrom, and it should be trivial to add a rule to create /dev/dvd.
Adduser <username> cdrom

i.e. adding a user to group cdrom

On my system, /dev/cdrom is a symlink to /dev/hdd

/dev/hdd is owned by root but group cdrom

brw-rw-rw-  1 root,cdrom 22,64 2005-02-26 06:38 hdd

[The device permissions are 0666 but that may be as a result of 
changing permissions when setting up k3b]


> -- 
> To UNSUBSCRIBE, email to debian-user-REQUEST@lists.debian.org 
> with a subject of "unsubscribe". Trouble? Contact 
> listmaster@lists.debian.org

Reply to: