mongoDB

MongoDB only provides packages for 64-bit long-term support Ubuntu releases. Currently, this means 12.04 LTS (Precise Pangolin) and 14.04 LTS (Trusty Tahr).

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv EA312927
# Ubuntu 12.04
echo "deb http://repo.mongodb.org/apt/ubuntu precise/mongodb-org/3.2 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.2.list
# Ubuntu 14.04
echo "deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.2 multiverse" 

sudo apt-get update
sudo apt-get install -y mongodb-org
sudo service mongod start

MongoDB provides officially supported packages in their own repository. This repository contains the following packages:

• mongodb-org A metapackage that will automatically install the four component packages listed below.
• mongodb-org-server Contains the mongod daemon and associated configuration and init scripts.
• mongodb-org-mongos Contains the mongos daemon.
• mongodb-org-shell Contains the mongo shell.
• mongodb-org-tools Contains the following MongoDB tools: mongoimport bsondump, mongodump, mongoexport, mongofiles, mongooplog, mongoperf, mongorestore, mongostat, and mongotop.

These packages conflict with the mongodb, mongodb-server, and mongodb-clients packages provided by Ubuntu.

To prevent unintended upgrades, pin the package. To pin the version of MongoDB at the currently installed version, issue the following command sequence:

echo "mongodb-org hold" | sudo dpkg --set-selections
echo "mongodb-org-server hold" | sudo dpkg --set-selections
echo "mongodb-org-shell hold" | sudo dpkg --set-selections
echo "mongodb-org-mongos hold" | sudo dpkg --set-selections
echo "mongodb-org-tools hold" | sudo dpkg --set-selections

The MongoDB instance stores its data files in /var/lib/mongodb and its log files in /var/log/mongodb by default, and runs using the mongodb user account. You can specify alternate log and data file directories in /etc/mongod.conf.