SELinux Understanding

[Nigel Henry]

On Monday 15 October 2007 21:06, Bruno Wolff III wrote:
> On Mon, Oct 15, 2007 at 19:35:17 +0200,
>
>   Nigel Henry <cave.dnb at tiscali.fr> wrote:
> > Just one last unreproducible problem. This time involving udev, and the
> > ordering of video devices. My TV PCI card uses /dev/video0, and the USB
> > webcam /dev/video1. At least that is the order in which I installed them
> > (TV card first, and some time later the webcam) , and on non udev kernels
> > they are ordered that way each time I bootup. The only proviso I put on
> > this, is that the original kernel installed when I installed Fedora 7, is
> > also a udev one, and unless it's just coincidence the video devices are
> > always ordered correctly. The later udev using kernels are always hit and
> > miss, and that's both on Fedora, and Debian installs. Sometimes the TV
> > card is /dev/video0, sometimes it's /dev/video1, and the same for the
> > webcam. It's a bit like throwing a slice of buttered bread up into to
> > air, and seeing how it lands. Buttered side up? It's anybodies guess, and
> > totally unreproducible. Murphy's law says it will always end up with the
> > buttered side on the carpet.
>
> You can make rules to create files based on the device IDs that may help
> solve the problem you are having. You can probably use the device IDs or
> the rule names to control which device gets which /dev/video? name if you
> really need to use those specific names. I don't know enough about udev to
> suggest specific solutions, just to suggest that there probably is a
> solution.

Yes. I'm working on resolving that problem, but was mainly commenting on the 
problem of getting reproducible errors as per Karls suspected SELinux 
problem.

Thanks for the reply.

Nigel.