[mythtv-users] Nebula DVB-T problem after kernel update

[rob.mythtv at robertwillett.com]

Otto Kolsi wrote:
> This is not Myth problem.. I hope someone can still help.
>
> I had working Fedora Core 4 Myth installation with Nebula DVB-T card, 
> with kernel 2.6.14. I pretty much followed 
> <http://www.dtvforum.info/lofiversion/index.php/t13523.html> and got 
> Nebula card working nicely.
>
> Then I (stupid me) upgraded kernel to 2.6.15 with yum and booted the 
> machine couple times with the new kernel. After that Nebula doesn't work 
> anymore, with either kernel. DVB devices are there, kernel modules seem 
> to be right, card is recognized at boot, no errors in dmesg etc. But 
> e.g. 'scan' or 'dvbstream' won't work anymore.
>
> Can anyone give me a hint where to look? Does booting with new kernel 
> change devices, permissions, kernel modules or something else? Now that 
> I'm back using the previous kernel, should everything be like before the 
> upgrade (well, it isn't but anyway..)?
>
> Thanks,
>   
I have the same kernel and card and did exactly what you did.

I did have to manually add /dev/dvb/adaptor and also add in a new 
module. I did this with /etc/rc.local (I'm just getting it going so 
please don;t anybody bitch about it)

modprobe dvb-bt8xx
mkdir -p /dev/dvb/adapter0
mknod /dev/dvb/adapter0/audio0 c 250 1
mknod /dev/dvb/adapter0/ca0 c 250 6
mknod /dev/dvb/adapter0/demux0 c 250 4
mknod /dev/dvb/adapter0/dvr0 c 250 5
mknod /dev/dvb/adapter0/frontend0 c 250 3
mknod /dev/dvb/adapter0/net0 c 250 7
mknod /dev/dvb/adapter0/osd0 c 250 8
mknod /dev/dvb/adapter0/video0 c 250 0
chmod ugo+rw /dev/dvb/adapter0/*

mythbackend &

Let me know if this doesn't work.

To be honest, all I did was install FC4. I did yum upgrade, changed the 
atrpms to use the testing rpms. Added in the modprobe and dvb devices.

It just worked. I normally spend a week building, testing and rebuilding 
from source. I thought I'd try the yum approach and it did exactl what 
it was supposed ro

Rob.