Install VirtualBox 4.0 (Stable) In Ubuntu, Via Repository

VirtualBox 4.0 has been released today. We've already covered what's new in VirtualBox 4.0 when the first beta came out so check out that post or the changelog for more info.

 

As you probably know, starting with VirtualBox 4.0 some features are now available separately, in an extension pack. Here are the step-by-step instructions on installing both VirtualBox and the Extensions Pack in Ubuntu.