Re: [LAU] RealTime Kernel for openSUSE 10.3 x86_64

On Wednesday 17 October 2007, Rui Nuno Capela wrote:
> > The default kernel and kernel source packages have both moved on to
> > 2.6.22.9-0.4 - so if I install the RT kernel, I will not be able to
> > install the NVidia driver for it.
> >
> > I am now trying to downgrade the kernel and sources to the original
> > shipped version so I can try the RT version.  Does anyone have any advice
> > that might help?
>
> Interesting :) have a look up here:
>   http://www.rncbc.org/drupal/node/38

Hmm

Well downgrading the kernel was partly successful - i.e. I got back to version
2.6.22.5-31, installed the sources and re-installed the NVidia driver. I
then managed to install the NVidia driver against the default kernel.

I then managed to install the kernel-rt package, and once again booted into
text mode.

Sadly, installing the NVidia module once again failed - basically the same
message as with 10.2

ERROR: The kernel header file
  '/lib/modules/2.6.22.5-31-rt/build/include/linux/version.h' does not
  exist. The most likely reason for this is that the kernel source files
  in '/lib/modules/2.6.22.5-18-rt/build' have not been configured.

I've done some digging:

/lib/modules/2.6.22.5-31-rt/build is a symlink to
                 /usr/src/linux-2.6.22.5-31-obj/x86_64/rt

This directory contains only a single file called Module.symvers (matching
kernel-rt and kernel-source installed.

I've gone back to the updated kernel, and successfully re-installed the NVidia
driver - so I evidently have correctly configured sources. Looking at
/usr/src/linux-2.6.22.5-31-obj/x86_64, there are directories for default, xen
and debug, and they each contain version.h - but there is no rt/ folder.

I'm not a coder, so all I have to go on is logic - but it appears to me that
the kernel-source package does not include the necessary files for a realtime
kernel.

Is there any way that these files can be generated without rebuilding the
kernel?

-- 
David Haggett
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