Just copy/paste this entire line into a terminal window…

sudo cd /usr/share/virtualbox/src/vboxhost && for file in `grep “autoconf.h” * -R| cut -f1 -d:`; do sed -i ‘s/^#\(\s*\)include <linux\/autoconf\.h>/#\1include <generated\/autoconf.h>/g’ $file; done

Then type;

sudo /etc/init.d/vboxdrv setup

The virtualbox driver should now compile.

The file “autoconf.h” has been moved in more recent kernels from <linux/autoconf.h>

Continue reading Problems with virtualbox 4.0.2 and linux kernel 2.6.38? Here’s a solution..