building external modules

[Gary Peck]

Ok, filed in bugzilla:

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=117645

gary

On Thu, Mar 04, 2004 at 08:10:57PM -0800, Gary Peck wrote:
> On Thu, Mar 04, 2004 at 09:48:58PM +0100, Dumas Patrice wrote:
> > Since the kernel is 2.6, I have trouble compiling and installing an external 
> > module. I could only compile the driver as root.
> 
> Yeah, I've noticed the same problem. I keep meaning to bugzilla it, but
> haven't gotten around to it yet. In the meantime, here's my notes on how
> to compile modules as a normal user:
> 
> > And before I compile it I had to do the following as root:
> > 
> > * edit the Makefile in /usr/src/kernel-2.6.... and remove 'custom' from the
> >   EXTRAVERSION. Otherwise it isn't installed at the right place.
> > * run 
> >   make oldconfig
> >   make prepare
> 
> As of the 2.6 kernel, you don't need kernel-source installed to compile
> kernel modules (which is what it looks like you're doing). The kernel
> package now contains all necessary files.
> 
> > If I try to compile as a user, I get
> > [pat at localhost driver]$ make
> > make  -C /usr/src/linux SUBDIRS=/home/pat/src/eagleusb/driver modules
> > make[1]: Entering directory `/opt/fc2t/usr/src/linux-2.6.3-1.118'
> >   HOSTCC  scripts/modpost.o
> > cc1 : Permission non accordée : ouverture du fichier de dépendances
> > scripts/.modpost.o.d
> > make[2]: *** [scripts/modpost.o] Erreur 1
> > make[1]: *** [scripts] Erreur 2
> > make[1]: Leaving directory `/opt/fc2t/usr/src/linux-2.6.3-1.118'
> > make: *** [eagle-usb.ko] Erreur 2
> 
> Even though you should only need the kernel package, the current Fedora
> one is missing some files. Specifically, all the actual executables are
> there, but some of the intermediate files are missing. This triggers
> make to try and rebuild them. Do this as a workaround (assuming kernel
> version 2.6.3-1.118) while logged in as root:
> 
> sed -ie 's/^always/#always/' \
>     /lib/modules/2.6.3-1.118/build/scripts/Makefile \
>     /lib/modules/2.6.3-1.118/build/scripts/genksyms/Makefile
> 
> Some timestamps are also messed up:
> 
> touch -r `ls -t /lib/modules/2.6.3-1.118/build/scripts/split-include \
>     /lib/modules/2.6.3-1.118/build/include/linux/autoconf.h \
>     /lib/modules/2.6.3-1.118/build/include/config/MARKER | head -1` \
>     /lib/modules/2.6.3-1.118/build/include/config/MARKER
> touch -r /lib/modules/2.6.3-1.118/build/arch/i386/kernel/asm-offsets.s \
>     /lib/modules/2.6.3-1.118/build/include/asm-i386/asm_offsets.h
> 
> And last but not least, I had to do the following, though I'm not sure
> if this is necessary for all external modules, or just the one I was
> building:
> 
> ln -s /dev/null /lib/modules/2.6.3-1.118/build/.__modpost.cmd
> 
> After the above commands, you should be able to build modules as a
> normal user.
> 
> gary
> 
>