Ubuntu 13.04 安装 virtualbox

Install Virtualbox key

wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc -O- | sudo apt-key add -

add source

sudo sh -c 'echo "deb http://download.virtualbox.org/virtualbox/debian raring contrib" >> /etc/apt/sources.list.d/virtualbox.list'

sudo apt-get update

sudo apt-get install virtualbox 4.x