How to install Virtualbox in Ubuntu properly?

Virtual Box is useful application for installing other operating systems inside your Linux installation without disturbing your hard disc. It is very easy to mange a guest OS using Virtual Box.

I prefer to use Virtual Box PUEL ( Personal Use and Evaluation License) edition. You can download from here,

http://www.virtualbox.org/wiki/Downloads

Choose a suitable version of Virtual Box for your Ubuntu. Download it and install by give a double click on it.

Next step is Open a terminal and give the following command,

sudo su

sudo usermod -a -G vboxusers username

Download and Install VirtualBox Extension Pack from same page.

It help to manage USB 2.0 devices with Virtual Box.

You can start Virtual Box  from Applications > System > Virtual Box

Note: If you get following error message "Virtual box kernel driver not installed" when you try to run Virutal box,

try the following commands.

sudo apt-get install linux-headers-`uname -r`

/etc/init.d/vboxdrv setup