From iFixWiki

MongoDB is a database used to manage and create databases.

Useful commands[edit]

Completely uninstall MongoDB[edit]

If you've messed up your MongoDB installation and want to completely uninstall use these commands[1]:

  1. sudo service mongod stop
  2. sudo apt-get purge mongodb-org*
  3. sudo rm -r /var/log/mongodb
  4. sudo rm -r /var/lib/mongodb


MongoDB fails to start[edit]

When running the command sudo systemctl status mongod the MongoDB server will fail to start with the message (code=exited, status=62)


Attempt to repair the MongoDB installation by running the command:

sudo mongod --repair

If this command fails and it shows the error Data directory /data/db not found create the directory using this command:

sudo mkdir -p /data/db

Then restart mongodb:

  1. sudo systemctl stop mongod
  2. sudo systemctl start mongod
  3. sudo systemctl status mongod

MongoDB fails to start immediately after installation[edit]

When running the command sudo systemctl start mongod an error will appear saying:

Failed to start mongod.service: Unit mongod.service not found.


Enter the command:

sudo systemctl enable mongod

This will link the service and allow it to start.