The currently accepted answer works, but will install an outdated version of Mongo.
The Mongo documentation states that: MongoDB only provides packages for Ubuntu 12.04 LTS (Precise Pangolin) and 14.04 LTS (Trusty Tahr). However, These packages may work with other Ubuntu releases.
So, to get the lastest stable Mongo (3.0
), use this (the different step is the second one):
apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10
echo "deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb.list
apt-get update
apt-get install mongodb-org
Hope this helps.
I would like to add that as a previous step, you must check your GNU/Linux Distro Release, which will construct the Repo list url. For me, as I am using this:
DISTRIB_CODENAME=rafaela
DISTRIB_DESCRIPTION="Linux Mint 17.2 Rafaela"
NAME="Ubuntu"
VERSION="14.04.2 LTS, Trusty Tahr"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 14.04.2 LTS"
The original 2nd step:
"Create a list file for MongoDB": "echo "deb http://repo.mongodb.org/apt/ubuntu "$(lsb_release -sc)"/mongodb-org/3.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.0.list"
Didn't work as intended because it generated an incorrect Repo url. Basically, it put the distribution codename "rafaela" within the url repo which doesn't exist. You can check the Repo url at your package manager under Software Sources, Additional Repositories.
What I did was to browse the site:
http://repo.mongodb.org/apt/ubuntu/dists/
And I found out that for Ubuntu, "trusty" and "precise" are the only web folders available, not "rafaela".
Solution: Open as root the file 'mongodb-org-3.1.list' or 'mongodb.list' and replace "rafaela" or your release version for the corresponding version (for me it was: "trusty"), save the changes and continue with next steps. Also, your package manager can let you change easily the repo url as well.
Hope it works for you.! ---