Virtualbox 5.0, Ubuntu 14.04

Virtualbox 5.0, Ubuntu 14.04:
1. wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc -O- | sudo apt-key add -
2. sudo sh -c 'echo "deb http://download.virtualbox.org/virtualbox/debian trusty contrib" >> /etc/apt/sources.list.d/virtualbox.list'
3. sudo apt-get update
4. sudo apt-get install virtualbox-5.0
5. Oracle VM VirtualBox Extension Pack (https://www.virtualbox.org/wiki/Downloads)
6. sudo apt-get install dkms
7. sudo apt-get install gnome-system-tools
8. Users and Groups > Manage Groups > vboxusers > Properties > OK.