Hello all.

I use virtualbox for every experiment i do, and i need to use kernel-2.6.27 in my laptop because of my intel wireless card. So, using gentoo, i get an error when compiling virtualbox-modules using the 2.6.27 kernel.

Here is a quick fix for it.

(as root)

copy the vbox-kernel-module-src-1.6.4.tar.bz2 in /usr/portage/distfiles to some where else. Uncompress the file

tar -jxvf vbox-kernel-module-src-1.6.4.tar.bz2

A vboxdrv directory will be created. Enter the new directory

cd vboxdrv

Now, backup the following files (the paths will always be having vboxdrv as the main):

  1. SUPDRV.h
  2. linux/SUPDrv-linux.c

Edit SUPDRV.h and remove the line that contais include <asm/semaphore.h> (Line 104)

(…)

#   include <linux/string.h>
#   include <linux/spinlock.h>
#   include <linux/slab.h>
#   if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
#       include <linux/semaphore.h>
#   else /* older kernels */
#       include <asm/semaphore.h>
#   endif /* older kernels */
//#   include <asm/semaphore.h> << - Coment out or remove this line
#   include <linux/timer.h>

(…)

Now, edit linux/SUPDrv-linux.c and change the following line (line 1331)

smp_call_function(VBoxDrvLinuxGipResumePerCpu, pDevExt, 0 /*retry*/, 1 /* wait */);

to
smp_call_function(VBoxDrvLinuxGipResumePerCpu, pDevExt, 1 /* wait */);

Save and rebuild the module

Since we are in gentoo, we have two options

  1. Doing things at Gentoo Way (the prefered method)
  2. We build the kernel module

The Gentoo Way

The Gentoo way involves compressing the file, putting it in /usr/portage/distfiles, rebuilding the Manifest and emerging virtualbox-modules.

Compress the vboxdrv directory (we’ll change the filename later):

tar -jcvf vboxdrv.tar.bz2 vboxdrv

Removing the old file (the one without the changes) and copying it to /usr/portage/distfiles

rm -f /usr/portage/distfiles/vbox-kernel-module-src-1.6.4.tar.bz2

cp ~/vboxdrv.tar.bz2 /usr/portage/distfiles

cd /usr/portage/distfiles

mv vboxdrv.tar.bz2 vbox-kernel-module-src-1.6.4.tar.bz2

Now, we have the new module renamed and almost ready for emerge. We need to go to /usr/portage/app-emulation/virtualbox-modules and re-digest the ebuild (the checksum of the file has changed)

cd /usr/portage/app-emulation/virtualbox-modules

rm -f Manifest

ebuild virtualbox-modules-1.6.4.ebuild digest

Now, we need to remove the temporary directory that portage uses to compile the module.

rm -rf /var/tmp/portage/app-emulation

now, just emerge it

emerge -av virtualbox-modules

and everything should work

 

Building the Kernel Module

After the change, in the vboxdrv directory just type:

make

make install

modprobe vboxdrv

Now, we have a working vboxdrv with kernel 2.6.27

Somethings of this solution have been taking from ubuntu forums