[TriLUG] Installing kernel module -- missing headers/broken symlink

[David A. Cafaro]

You may be able to solve your headaches by installing the kernel source
rpm.  Example:

rpm -ivh kernel-source-2.4.9.21.i386.rpm

and 

rpm -ivh kernel-headers-2.4.9-21.i386.rpm (if not installed)

And this should give you everything you may need to compile kernel
modules.  You'll have to find the rpm's since I don't think those are
the versions that come on the CD and I didn't seem them on the Redhat
mirror that I checked (they skipped up to the 2.4.18-24 kernel they sent
out for all RH 7.x releases). 

Cheers,
David

On Tue, 2003-03-11 at 07:00, Steven Hilton wrote:
> I'm trying to intall the USB Quickcam Video Camera driver, online at 
> http://qce-ga.sourceforge.net. The READE is pretty straightforward, but
> I think there may be something wrong with my installation.
> 
> I'm running RH 7.2. I do not know C. I know very little about "kernel
> stuff" :-)
> 
> Running make on the driver makefile bombs out early, reporting:
> 
> quickcam.c:1:12: /lib/modules/2.4.9-21/build/include/linux/config.h: No
> such file or directory
> 
> which is true enough.
> 
> I find that the "build" part that path is a broken symlink on my system:
> 
> 
> [root at jefferson 2.4.9-21]# pwd
> /lib/modules/2.4.9-21
> [root at jefferson 2.4.9-21]# ls -al
> total 248
> drwxr-xr-x    4 root     root         4096 Mar 12  2002 .
> drwxr-xr-x    3 root     root         4096 Feb 22  2002 ..
> lrwxrwxrwx    1 root     root           31 Feb  7  2002 build ->
> ../../../usr/src/linux-2.4.9-21
> [...]
> 
> There is no 'linux.*' directory under /usr/src.
> 
> However, there *is* a '/usr/include/linux' directory, and it has all the
> needed kernal header files. Looks like, anyway.
> 
> So my question is two-fold:
> 1) Why would the /usr/src/linux* directories be missing?
> and 
> 2) Can I just do this to solve my problem?
> 
> cd /lib/modules/2.4.9-21
> ln -f -s /usr/include/linux/ build
> 
> Or would that be a Bad Idea? 
> Barring that, what is the preferable course of action? 
> 
> I also tried to intall the alsa sound drivers recenly, and IIRC it
> failed to install for the same reasons.
> 
> Thanks for any input.
> 
> 
> -- 
> Steven Hilton <mshiltonj at libertystorm.com>
> 
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