How to start armitage on kali

root@Kali:~# service postgresql start
[ ok ] Starting PostgreSQL 9.1 database server: main.
root@Kali:~# service metasploit start
[ ok ] Starting Metasploit rpc server: prosvc.
[ ok ] Starting Metasploit web server: thin.
[ ok ] Starting Metasploit worker: worker.

root@Kali:~# armitage &