I am tring to install VirtualBox. And I have some trouble.I went to the VirtualBox forum and see a post that intend to solve a similar problem with mine. I have this question "I have no output with command 'ls /usr/src | grep linux'. what should I do?"."The virtualBox linux kernel driver (vboxdrv) is either not loaded or there is a permission problem with /dev/vboxdrv. Please reinstall the kernel module by executing
/etc/init.d/vboxdrv setup" Balabala...etc.
Could you help me check it out? By the way ,I am using openSuSE 12.2, desktop, KDE if you ask. 64-bitopenSUSE 12.2 prerequisites should be installed first as well as a full update. It really depends on exactly what you are running, desktop, server, Etc.
For normal users it should be kernel-desktop-devel kernel-source kernel-syms gcc make
You should verify this with your Host OS forum to be sure.