how to install mongoDB

1. insert into key from url to get mongDB key
#sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10

2.modify the apt source.ist
#echo 'deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen' | sudo tee /etc/apt/sources.list.d/mongodb.list

3. update the repository
#sudo apt-get update

4. install mongoDB
#sudo apt-get install mongodb-10gen

5.testing the mongoDB
#mongo