K3b permissions issues.

[Gabriel Dragffy]

I now have a half-solution. It seems that K3B sets up /dev/sg1 with the 
correct permissions, but cdrao actually uses /dev/sg0 for writing and this 
device has root:root ownership. If I run the command:
$ sudo chown root:cdrom /dev/sg0

then everything works fine in K3b, no probs. BUT there is still one problem, 
these permission settings are lost upon reboot, which is most annoying. How 
can I make the change permanent?


On Sunday 07 May 2006 11:17, Gabriel Dragffy wrote:

> cdrecord
> -----------------------
> /usr/bin/X11/cdrecord: Warning: Running on Linux-2.6.12-10-686
>
> /usr/bin/X11/cdrecord: There are unsettled issues with Linux-2.5 and newer.
> /usr/bin/X11/cdrecord: If you have unexpected problems, please try
> Linux-2.4 or Solaris.
> /usr/bin/X11/cdrecord: Operation not permitted. WARNING: Cannot set
> RR-scheduler
> /usr/bin/X11/cdrecord: Permission denied. WARNING: Cannot set priority
> using setpriority().
> /usr/bin/X11/cdrecord: WARNING: This causes a high risk for buffer
> underruns. scsidev: '1,0,0'
> scsibus: 1 target: 0 lun: 0
> Error trying to open /dev/sg0 exclusively (Permission denied)... retrying
> in 1 second.
> Error trying to open /dev/sg0 exclusively (Permission denied)... retrying
> in 1 second.
> Error trying to open /dev/sg0 exclusively (Permission denied)... retrying
> in 1 second.
> Error trying to open /dev/sg0 exclusively (Permission denied)... retrying
> in 1 second.
> Error trying to open /dev/sg0 exclusively (Permission denied)... retrying
> in 1 second.
> Error trying to open /dev/sg0 exclusively (Permission denied)... retrying
> in 1 second.
> Error trying to open /dev/sg0 exclusively (Permission denied)... retrying
> in 1 second.
> Error trying to open /dev/sg0 exclusively (Permission denied)... retrying
> in 1 second.
> Error trying to open /dev/sg0 exclusively (Permission denied)... retrying
> in 1 second.
> Error trying to open /dev/sg0 exclusively (Permission denied)... retrying
> in 1 second.


> On Friday 05 May 2006 21:20, Gabriel Dragffy wrote:
> > I have been happily burning DVDs and CDs using K3b and my laptop's
> > burner. Recently the hardware has broken so I got an internal LiteOn DVD
> > burner (one for a desktop PC), and put it in an external USB housing. I
> > connect it and it is recognized and auto mounted as sd0 or whatever. It
> > works absolutely wonderfully for everything from reading a CD to writing
> > a DL DVD...  except oftentimes when I press the burn button in K3b it
> > tells me I don't have the permissions and I should correct it by running
> > K3b setup. So I run this and it doesn't really change any settings and so
> > K3b still gives me the same message. Even restarting the computer doesn't
> > solve it and sometimes if I tinker long enough it works again. I can
> > completely bypass the error by starting K3b as root, but I don't
> > particularly like this or even consider it a solution.
> >
> > Hoping someone can offer a better solution please?
> >
> > Regards,
> > Gabe