Install Ubiquiti mFi Controller on Ubuntu 12.04

Install MongoDB:

Import 10gen public GPG Key:
apt-key adv --keyserver keyserver.ubuntu.com --recv 7F0CEB10


Create the following sources file and add the mongodb repository:

echo 'deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen' | tee /etc/apt/sources.list.d/10gen.list
 
Reload your Repository:
apt-get update

Install mongodb-10gen:
apt-get install mongodb-10gen

Add Ubiquiti mFi Repository:
deb http://www.ubnt.com/downloads/mfi/distros/deb/precise precise ubiquiti

Add the GPG Key:
apt-key adv --keyserver keyserver.ubuntu.com --recv C0A52C50

Update sources and install mfi package:
apt-get update
apt-get install mfi