Kernel driver not installed (rc=-1908) - VirtualBox startup error

Got the "Kernel driver not installed (rc=-1908)" error while trying to power-up my Win virtualbox on Ubuntu today. I had upgraded my kernel a few weeks back and looks like the virtualbox kernel driver needs to be reloaded. The fix: instalk dkms and run vboxdrv setup as below:

sudo apt-get install dkms
sudo /etc/init.d/vboxdrv setup

#$ sudo /etc/init.d/vboxdrv setup

 * Stopping VirtualBox kernel modules                                                                                            [ OK ] 

 * Uninstalling old VirtualBox DKMS kernel modules                                                                  [ OK ] 

 * Trying to register the VirtualBox kernel modules using DKMS                                               [ OK ] 

 * Starting VirtualBox kernel modules                                                                                               [ OK ]