How To Install MariaDB on Ubuntu 18.04 / Ubuntu 16.04
MariaDB is a fork of the very popular MySQL database management system, and it is now considered as a full drop-in replacement for MySQL.
Install MariaDB on Ubuntu 18.04 / Ubuntu 16.04
You can install MariaDB in two ways, using either Ubuntu repository or Official MariaDB mirror.
Important Notes
Ubuntu 18.04 includes MariaDB 10.1 which the latest version for Ubuntu 18.04 in its main repository. So, we recommend using Ubuntu repository for MariaDB installation on Ubuntu 18.04
We recommend not installing MariaDB from Ubuntu repository on Ubuntu 16.04 as the version available in it is MariaDB 10.0 which is already the end of support.
Install MariaDB from Official MariaDB Mirror
MariaDB offers an official installer package for MariaDB v10.4. You can choose any one of the mirrors from the MariaDB downloads page to download it.
sudo apt-get update sudo apt-get install -y software-properties-common apt-transport-https ca-certificates
Add public signing key to your system.
sudo apt-key adv --fetch-keys 'https://mariadb.org/mariadb_release_signing_key.asc'
Use the add-apt-repository command to add MariaDB repository straight away.
### Ubuntu 18.04 ### sudo add-apt-repository 'deb [arch=amd64,arm64,ppc64el] https://sfo1.mirrors.digitalocean.com/mariadb/repo/10.4/ubuntu bionic main' ### Ubuntu 16.04 ### sudo add-apt-repository 'deb [arch=amd64,arm64,i386,ppc64el] https://sfo1.mirrors.digitalocean.com/mariadb/repo/10.4/ubuntu xenial main'
Now, install MariaDB using the following command.
sudo apt-get update sudo apt-get install -y mariadb-server mariadb-client
Use mysql_secure_installation to secure the installation of the MariaDB server.
Install MariaDB from Ubuntu Repository
Installing from the Ubuntu default repository is a straightforward way, but this may have a bit old version of MariaDB.
sudo apt-get update sudo apt-get install -y mariadb-server mariadb-client
Use mysql_secure_installation to secure the installation of the MariaDB server.
Perform the below steps only when you need to access MariaDB as MariaDB root user from external machines or other Unix logins, otherwise, skip below.
Login as MariaDB root user.
$ sudo mysql -u root -p
use mysql; update user set plugin='mysql_native_password' where user='root'; flush privileges; quit;
Now you can log in as the MariaDB root user without any problem.
Access MariaDB
To access the MariaDB instance, run the following command on the terminal.
sudo mysql -u root -p
Enter the password of the root user that you have set during the installation.
Once after entering the password, you would get the MariaDB shell.

Control MariaDB service
In case if you want to start/stop the MariaDB, you can use the following command.
sudo systemctl start mariadb sudo systemctl stop mariadb
Conclusion
That’s All. Please share your feedback in the comments section.