Cara Install MongoDB Ubuntu 12.04

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10
echo 'deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen' | sudo tee /etc/apt/sources.list.d/mongodb.list
sudo apt-get update
sudo apt-get install mongodb-10gen
service mongodb start

Test mongodb apakah sudah runing dengan comand

mongo

Source : http://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu/