Sorry, wrong link in previous post.
https://launchpad.net/~alindt/+archive/ubuntu/xenial-backports-virtualbox
sudo add-apt-repository ppa:alindt/xenial-backports-virtualbox sudo apt-get update
Sorry, wrong link in previous post.
https:/ /launchpad. net/~alindt/ +archive/ ubuntu/ xenial- backports- virtualbox
sudo add-apt-repository ppa:alindt/ xenial- backports- virtualbox
sudo apt-get update