MongoDB, Inc. released their newest version 2.6 of MongoDB at the end of May and the Ubuntu/Debian repositories still provide an older version. To install 2.6 follow this guide.

Register APT Repository

First, you have to add the public key of MongoDB, Inc. to your aptitude repository. You can do with the apt-key command.

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv 7F0CEB10  

Additionally, a MongoDB repository list file has to be created containing the route to MongoDB binaries.

Ubuntu

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

Debian

echo 'deb http://downloads-distro.mongodb.org/repo/debian-sysvinit dist 10gen' | sudo tee /etc/apt/sources.list.d/mongodb.list  

Install MongoDB

Before the newest version of MongoDB is installable, update your aptitude repository index.

sudo apt-get update  

Now you can install MongoDB and required packages on your system.

sudo apt-get install mongodb-org  

Install a specific version of MongoDB and its dependent packages, in this case 2.6.2:

sudo apt-get install mongodb-org=2.6.2 mongodb-org-server=2.6.2 mongodb-org-shell=2.6.2 mongodb-org-mongos=2.6.2 mongodb-org-tools=2.6.2  

This previous command installs the defined version. If you want to install another version than 2.6.2, change the 2.6.2 to the your required version.

Start/Stop MongoDB Service

The MongoDB system service starts automatically after installation.

By default, MongoDB stores data into the /data/db (on Windows C:\data\db) folder of your system. You can specify the storage path by adding the dbpath variable to the start command.

sudo mongod --dbpath /server/dbdata/mongodb  

Additionally, the MongoDB system process starts by default on Port 27017. To change it, add the port variable to the server start command

sudo mongod --port 2345  

Check Installation

You can verify the installation with this command:

mongo --version

# shell output
MongoDB shell version: 2.6.2  

---

Find further information about the mongodb process, ports and many more in the MongoDB docs.