Install Memgraph on Debian

Download Memgraph Debian Package

Downloaded the latest Memgraph Debian Package from the Memgraph Download Hub (opens in a new tab).

You can also use direct download links to get the latest Memgraph packages.

For example, for Debian 12:

sudo wget https://download.memgraph.com/memgraph/v2.20-0/debian-12/memgraph_2.21.0-1_amd64.deb

Install Memgraph

After downloading Memgraph as a Debian package, install it by running the following:

sudo dpkg -i /path-to/memgraph_<version>.deb

Troubleshooting

Unable to use sudo

If you encounter the following error:

-bash: sudo: command not found

Install sudo with:

apt update -y
apt install sudo -y

Unable to install the Memgraph package with dpkg

While running the following dpkg command:

dpkg -i /path-to/memgraph_<version>.deb

you may encounter errors that resemble the following:

dpkg: error processing package memgraph (--install): dependency problems -
leaving unconfigured Errors were encountered while processing: memgraph

These errors indicate that you don’t have all of the necessary dependencies installed. Before attempting to resolve these dependency issues, it's recommended to update your package lists to ensure you have the latest information about available packages. Run the following command:

sudo apt update

After updating the package lists, you can install the missing dependencies and finish the installation of Memgraph by issuing the following command:

sudo apt-get install -f

This command tells apt to fix broken dependencies; it will attempt to correct a system with broken dependencies in place.

Verify that Memgraph is running

To verify that Memgraph is running, run the following:

sudo journalctl --unit memgraph

If successful, you should receive an output similar to the following:

You are running Memgraph vX.X.X

If the Memgraph database instance is not running, you can start it explicitly:

sudo systemctl start memgraph

If you want the Memgraph database instance to start automatically on each startup, run the following command:

systemctl enable memgraph

You can also check the status of the Memgraph database instance by running:

sudo systemctl status memgraph

Troubleshooting

When you start a Memgraph instance, you may see the following list of notes in your terminal:

You are running Memgraph v1.4.0-community
 
NOTE: Please install networkx to be able to use graph_analyzer module. Using Python:
3.8.2 (default, Jul 16 2020, 14:00:26)
[GCC 9.3.0]
 
NOTE: Please install networkx to be able to use Memgraph NetworkX wrappers. Using Python:
3.8.2 (default, Jul 16 2020, 14:00:26)
[GCC 9.3.0]
 
NOTE: Please install networkx, numpy, scipy to be able to use proxied NetworkX algorithms. E.g., CALL nxalg.pagerank(...).
Using Python:
3.8.2 (default, Jul 16 2020, 14:00:26)
[GCC 9.3.0]
 
NOTE: Please install networkx to be able to use wcc module.
Using Python:
3.8.2 (default, Jul 16 2020, 14:00:26)
[GCC 9.3.0]

If you wish to work with built-in NetworkX modules in Memgraph, you need to install the following Python libraries:

• NumPy (opens in a new tab)
• SciPy (opens in a new tab)
• NetworkX (opens in a new tab)

For more information on how to install Python libraries in Linux, follow the Installing Packages guide (opens in a new tab). If you are not interested in working with query modules that depend on these libraries, you can ignore the warnings.

If you run into any troubles while installing Memgraph, contact us on Discord (opens in a new tab).

Connect to the database

To query the database from the console, you need to install mgconsole.

You can also connect to the database using one of the client libraries or visual-user interface Memgraph Lab.