17 Oct
2007
17 Oct
'07
1:34 p.m.
On Wed, October 17, 2007 16:04, David Haggett wrote:
On Wednesday 17 October 2007, Rui Nuno Capela wrote:
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?
that is exactly the issue.
the contents in /usr/src/linux-obj/$ARCH/rt directory is incomplete and
afaict not being made available in any package spec.
iow it is not being supplied in the kernel-source.$ARCH.rpm where
ARCH=(i386|x86_64|...) and that is why i had to build it "by-hand" the
whole kernel-rt from kernel-source.src.rpm as opensuse would do it.
that was my brute-force way of generating those missing files needed for
building external kernel modules, of which nvidia is just one common
example.
btw my mini-howto also mentions the url for the updated
kernel-source-2.6.22.9-0.4.src.rpm, just in case you did not notice.
cheers
--
rncbc aka Rui Nuno Capela
rncbc(a)rncbc.org
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