Installing MongoDB 4.2 on Ubuntu | A Step-by-Step Guide

MongoDB is a popular NoSQL database that offers a flexible and scalable solution for managing unstructured data. Installing MongoDB 4.2 on Ubuntu is a straightforward process, but it requires a few steps to ensure a smooth setup. In this guide, we’ll walk through the process of installing MongoDB 4.2 on Ubuntu and provide tips for configuring and verifying the installation.

Update Package Repository

Before installing MongoDB, it’s essential to update the package repository on your Ubuntu system to ensure you have access to the latest versions of software packages:

sudo apt update

Import MongoDB GPG Key

Next, import the MongoDB GPG key to ensure the authenticity of the MongoDB packages:

wget -qO – https://www.mongodb.org/static/pgp/server-4.2.asc | sudo apt-key add –

Add MongoDB Repository

Add the MongoDB repository to your system’s list of package sources:

echo “deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.2 multiverse” | sudo tee /etc/apt/sources.list.d/mongodb-org-4.2.list

Install MongoDB

Now, install MongoDB 4.2 using the following apt command:

sudo apt install -y mongodb-org

This command installs the MongoDB package along with its dependencies.

Start MongoDB Service

After the installation is complete, start the MongoDB service using the systemctl command:

sudo systemctl start mongod

Verify MongoDB Installation

You can verify that MongoDB is running correctly by checking its status with systemctl:

sudo systemctl status mongod

If MongoDB is running, you should see an active (running) status indication.

Enable MongoDB Service

To ensure that MongoDB starts automatically every time your system boots, enable the MongoDB service:

sudo systemctl enable mongod

Access MongoDB Shell

You can access the MongoDB shell to interact with the database by running the following command:

mongo

This command connects you to the MongoDB instance running on your local system.

Frequently Asked Questions (FAQ)

Can I install MongoDB 4.2 on versions of Ubuntu other than Bionic (18.04)?

Yes, MongoDB provides repositories for different versions of Ubuntu. Simply replace “bionic” in the repository URL with the codename of your Ubuntu version.

How can I uninstall MongoDB from my Ubuntu system?

To uninstall MongoDB, you can use the apt command with the purge option to remove the MongoDB package and its configuration files:

sudo apt purge mongodb-org

Is it necessary to add the MongoDB GPG key before installing MongoDB?

Adding the MongoDB GPG key ensures the authenticity of the MongoDB packages and helps prevent the installation of malicious software. It is recommended to import the GPG key before installing MongoDB.

Conclusion

By following these steps, you can install MongoDB 4.2 on your Ubuntu system and start working with this powerful NoSQL database. Remember to periodically check for updates and security patches to keep your MongoDB installation secure and up to date.