mirage-os deploy environment virtualbox ubuntu 16.2 server xen hypervisor mirage app dev environment brew install opam opam init opam install mirage References https://mirage.io/wiki/install http://www.skjegstad.com/blog/2015/01/19/mirageos-xen-virtualbox/ https://askubuntu.com/questions/775762/how-do-you-copy-paste-between-mac-osx-and-ubuntuserver-14-04-inside-virtualbox