Re: permissions denied when using k3b
> I'm curious as to if anyone has found a reasonable solution to problems
> with the various gui interfaces running as a non-root user when cdrecord
> is the chosen tool?
> I've tried setting permissions on the device, setuid bit and sudo, to no
> avail. cdrecord always exists because of permissions.
Not by a GUI but by shell scripts, i frequently use cdrecord as non-root.
Setuid bit does work for me (Linux kernels 2.0 to 2.4, cdrecord 1.6 to 2.01).
The superuser once applied :
chown root $cdrecord_address
chmod a+x,go-w,u+s $cdrecord_address
Ownership and permissions now look like :
-rwsr-xr-x 1 root root
What can have gone wrong ?
- the GUI program got its own ideas what cdrecord to use ?
( try cdrecord standalone )
- your attempts to set owner and permissions did not take effect ? ( ls -l )
- you treated the wrong file ? ( find / -name cdrecord -print 2>/dev/null )
- your system refuses to perform setuid ? ( try out with own code )
- ( room for more ideas )
Skilled local users might try to exploit the security problems of setuid.
sudo would be better but -to my knowledge- demands some kind of skilled
sysadmin during setup. Also the application would have to call sudo rather
than cdrecord. Preferable if achievable.
Have a nice day :)