Re: [SLE] How to make device permissions stick?

On Monday 16 January 2006 22:44, Sunny wrote:

On 1/16/06, Peter Sutter wrote:

...

I have a SuSE V9.2 Linux system with a dvd burner on /dev/hda. There is a web page based on a php script that allows users to specify directories to upload and burn to the dvd. To do this, wwwrun needs to have r/w access to /dev/hda. So I changed the permissions with chmod 666 /dev/hda. A ls -ls /dev/hda shows brw-rw-rw- 1 root disk 3, 0 Oct 2 2004 /dev/hda After the system is re-booted, the device permissions are back to brw------- 1 root disk 3, 0 Oct 2 2004 /dev/hda

I stuck the line /dev/hda root:disk 666 into /etc/permissions, in the hope that this will fix the problem. Unfortunately this does not work either, i.e. after a re-boot, the permissions are back to brw------- 1 root disk 3, 0 Oct 2 2004 /dev/hda

Running SuSEconfig --module permissions fixes the problem, until the next boot.

How is this done correctly? Which script on startup resets the device permission?

Thanks for your help

Peter

The easiest way I can think of is to use k3bsetup utility. There you have to select "Use burning group". This will set up the right permissions for the specified group (usualy this is the group "burning", but you can change it to "disk" if you want wwwrun to run as a member of the "disk" group). Or, you may set the wwwrun to run as a user, who is member of the "burning" group.

Cheers

-- -- Svetoslav Milenov (Sunny)

Thanks, Sunny The burning runs under wwwrun. Assigning a group does not help, because the file re-sets to brw------- 1 root disk 3, 0 Oct 2, 2004 /dev/hda which does not give write access to the group, only to the owner. Peter