[Tfug] Ubuntu Gutsy Compiling Kernel

[Andrew Ayre]

I'm running Ubuntu 7.10 Gutsy on my desktop PC and I want to patch the
kernel with RTAI. However my knowledge of patching and kernels is
limited... Here is what I tried:

I grabbed the Linux source from the Ubuntu gutsy repos and found it to
be 2.6.22.9. I built it and installed the package and it worked fine. I
used /boot/config-2.6.22-14-generic as the .config file.

Next I grabbed 2.6.22.9 from kernel.org. I built it in the same way and
installed the package. It works except Ethernet is broken. I again used
/boot/config-2.6.22-14-generic as the .config file.

In both cases I didn't configure the kernel - I simply built it.

So I am assuming that something was patched in the Ubuntu version to fix
some kind of problem.

eth0 appears to be ok, but there are no packets in or out.

Does anyone have any pointers on how do I find out what patch is missing
from my vanilla kernel? It seems Gutsy ships with 2.6.22.14, but nothing
beyond 9 is available from kernel.org. So I'm guessing the Ubuntu team
made a few revs of their own.

I posted on ubuntuforums.org but haven't received any replies on this.

thanks, Andy

-- 
Andy
PGP Key ID: 0x67090A54