CD-RW/DVD-ROM drive and device permission

Paul Howarth paul at city-fan.org
Tue Mar 15 10:57:33 UTC 2005


Francois Ouellette wrote:
>>>The device always turns out to be owned by root... I use 2 user names this
>>>machine apart from root.
>>
>>Is there a symlink being created ?:
>>
>>/dev/cdwriter -> hdc
> 
> 
> No.

So it looks like the default udev rules are not detecting your device as 
being a cdwriter. Do you have the latest udev package?

>>Also what is the /etc/fstab entry for /dev/hdc ?
>>Mine's (all one line):
>>/dev/hdc /media/cdrecorder auto
>>pamconsole,exec,noauto,fscontext=system_u:object_r:removable_t,managed 
> 
> 0
> 
>>Paul
> 
> 
> Whatever I put in /etc/fstab it always comes back as:
> 
> /dev/hdc /media/cdrecorder auto pamconsole,ro,exec,noauto,managed 0 0
> 
> and /dev/hdc is owned by root with a protection mask: brw-rw----

That entry looks OK as long as you're not using SELinux.

I think that all that needs to be done is to get udev to recognise your 
drive as a cdwriter and set up the appropriate link. Everything else 
should fix itself automagically after that.

Try creating a file /etc/udev/rules.d/10-custom.rules containing the 
following line:

BUS="ide", KERNEL="hdc", NAME="%k", SYMLINK="cdrom cdwriter dvd"

I assume you have only one CD and/or DVD drive?

Then see what you get after a reboot.

Paul.




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