I have been testing VirtualBox OSE in Ubuntu, but found that every time a kernel upgrade comes out the VirtualBox kernel drivers are left out of the upgrade.
The solution is quite simply to add the “ose-source” modules for VirtualBox:
sudo apt-get install virtualbox-ose-source sudo module-assistant auto-install virtualbox-ose-source sudo /etc/init.d/vboxdrv start
Now every subsequent upgrade the “ose-source” will be included and the kernal drivers should be built automatically.