How to Install MongoDB on Ubuntu: Complete Guide

MongoDB is a popular NoSQL database known for its high performance, flexibility, and scalability. This guide walks you through the process of installing MongoDB on Ubuntu step-by-step.

Step 1: Update System Packages

Before installing any software, it’s essential to update your system’s package list. Run the following commands to ensure everything is up to date:

sudo apt-get update
sudo apt-get upgrade -y

This updates package information and upgrades installed packages to their latest versions.

Step 2: Import the MongoDB Public Key

To ensure the authenticity of the software, you need to import the GPG key used to sign the MongoDB packages. Use this command:

wget -qO - https://www.mongodb.org/static/pgp/server-6.0.asc | sudo apt-key add -

This imports the official MongoDB key. You should see an "OK" message confirming its success.

Step 3: Add MongoDB Repository

Next, you’ll need to add the MongoDB repository to your system's source list. Create a new repository file using the following command:

echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu $(lsb_release -cs)/mongodb-org/6.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-6.0.list

This step ensures that your system can locate the MongoDB installation packages.

Step 4: Update the Package List

After adding the repository, you’ll need to refresh the package list once more:

sudo apt-get update

This allows Ubuntu to recognize the new MongoDB packages.

Step 5: Install MongoDB

Now you’re ready to install MongoDB. Run the following command:

sudo apt-get install -y mongodb-org

This installs the latest stable version of MongoDB, along with its associated tools.

Step 6: Start and Enable MongoDB

Once the installation is complete, you’ll need to start MongoDB and enable it to launch on system boot. Run the following commands:

sudo systemctl start mongod
sudo systemctl enable mongod

• start: Starts the MongoDB service.
• enable: Ensures MongoDB runs automatically after a system reboot.

Step 7: Verify MongoDB Installation

To ensure MongoDB is running correctly, check the status of the service:

sudo systemctl status mongod

If everything is working properly, you’ll see an active (running) status.

Step 8: Test the MongoDB Connection

To test if MongoDB is installed correctly, enter the MongoDB shell by typing:

mongosh

Once inside, you can run simple commands like:

show dbs

This displays a list of databases. If you see output, the installation was successful.

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