Re: Fwd: [Xen-users] mythbackend dvb cards...need some guidance...

["Tom Bishop" <bishoptf@xxxxxxxxx>]

I think you may be on to something, yes it works fine in dom0, but the kernel is not the same for a domU, I should have thought of this earlier....I will look at it tonight, sometimes you can't see the forest for the trees...

On 3/26/07, Mark Williamson <mark.williamson@xxxxxxxxxxxx> wrote:

Do you have the kernel / modules for the DVB adaptor installed in your domU?
The easiest way to get this is probably to make sure its the same kernel /
modules as the dom0 instance is using.

Did the DVB adaptor work correctly from dom0?

Can you post the dmesg output from booting the domU with the adaptor attached?
And the dmesg output from dom0?

Cheers,
Mark

On Monday 26 March 2007 14:30, Tom Bishop wrote:
>         1) The obvious question, does /dev/dvb/adapter0/frontend0 exist on
> your
>          filesystem? (I recently worked on a myth system that make
>          /dev/dvb0.frontend0 nodes, not the ones the software was
> expecting) If
>           not, run MAKEDEV dvb and try again... (if that works look into
> udev magic
>           to make it happen next time)
>
> /dev/dvb/adapter0/frontend0 does exist with the correct permissions.
>
>          2) Have you check dmesg/syslog to see if the driver is being
> loaded in
>          domU and what (if any) error messages there are?
>
> The only indication that I have is the error message when scanning,
> everything else looks good.
>
> On 3/25/07, Jac Kersing < j.kersing@xxxxxxxxxxx> wrote:
> > On Sun, 25 Mar 2007, Tom Bishop wrote:
> > > scandvb /usr/share/dvb-apps/atsc/us-ATSC-center-frequencies-8VSB
> > > scanning /usr/share/dvb-apps/atsc/us-ATSC-center-frequencies-8VSB
> > > using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> > > main:2247: FATAL: failed to open '/dev/dvb/adapter0/frontend0': 2 No
> >
> > such
> >
> > > file or directory
> >
> > 1) The obvious question, does /dev/dvb/adapter0/frontend0 exist on your
> > filesystem? (I recently worked on a myth system that make
> > /dev/dvb0.frontend0 nodes, not the ones the software was expecting) If
> > not, run MAKEDEV dvb and try again... (if that works look into udev magic
> > to make it happen next time)
> >
> > 2) Have you check dmesg/syslog to see if the driver is being loaded in
> > domU and what (if any) error messages there are?
> >
> > Regards,
> >
> > Jac
> >
> > ---
> >   Jac Kersing            Technical Consultant   The-Box Development
> >   j.kersing@xxxxxxxxxxx          CISSP           http://www.the-box.com

--
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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