Ubuntu 15.04 Installation MongoDB 3.x

Not in the official MongoDB documentation, but is actually feasible and requires the following steps

1. Install key

Apt-key adv--keyserver hkp://keyserver.ubuntu.com:80--recv 7F0CEB10

2. Add a source

echo "Deb Http://repo.mongodb.org/apt/debian wheezy/mongodb-org/3.0 main" | sudo tee/etc/apt/sources.list.d/mongodb-org-3.0.list

3. Update the source

Apt-get Update

4. Installing MongoDB

Apt-get Install mongodb-org

5. Check the status

# systemctl Status Mongod
mongod.service-lsb:an object/document-oriented database
   loaded:loaded (/etc/init. D/mongod)
   active:active (running) since six 2015-10-03 11:35:34 CST; 2min 8s ago
     Docs:man:systemd-sysv-generator ( 8)
   CGroup:/system.slice/mongod.service
           └─3365/usr/bin/mongod--config/etc/mongod.conf

October 03 11:35:33 dean-aspire-s3-391 systemd[1]: Starting Lsb:an object/document-oriented Database ...
October 11:35:33 dean-aspire-s3-391 mongod[3358]: * Starting database Mongod
October 11:35:34 dean-aspire-s3-391 mongod[ 3358]: ... done.
October 11:35:34 dean-aspire-s3-391 systemd[1]: Started lsb:an object/document-oriented database.

The installation was successful.