How to Install MariaDB 10.4 on CentOS 7

3288
Share:
how-to-install-mariadb-10-4-on-centos-7

CentOS 7 actually comes with MariaDB, but the default version on upstream repositories are still using version 5.5. This article will guide you how to install the latest version of MariaDB (10.4 at the time of this writing).

Dump Databases

If you already have some databases on your existing MySQL/MariaDB installation, please back them up first. Here's my post explaining how to backup MySQL databases, but if you're in a hurry, the command to backup all databases is:

$ mysqldump --opt -u [uname] -p[pass] --all-databases > [backupfile.sql]

This process could take some time depends on the size of your existing databases.

Remove Existing MariaDB Installation

To remove existing MariaDB installation, type this command:

$ sudo yum remove mariadb-server

After pressing "Enter" and prompted for password, you should see something like this:

Loaded plugins: fastestmirror, langpacks
Resolving Dependencies
--> Running transaction check
---> Package mariadb-server.x86_64 1:5.5.60-1.el7_5 will be erased
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================================
Package Arch Version Repository Size
================================================================================================
Removing:
mariadb-server x86_64 1:5.5.60-1.el7_5 @base 58 M

Transaction Summary
================================================================================================
Remove 1 Package

Installed size: 58 M
Is this ok [y/N]: y

Just press "y" and "Enter". Your old MariaDB server installation will be removed from system. Now we're ready to continue with installation.

MariaDB 10.4 Installation

Adding the MariaDB YUM repository

First step is to configure yum to install from MariaDB Corporation's MariaDB Package Repository by using the MariaDB Package Repository setup script.

MariaDB Corporation provides a MariaDB Package Repository for several Linux distributions that use yum to manage packages. This repository contains software packages related to MariaDB Server, including the server itself, clients and utilities, client libraries, plugins, and Mariabackup. The MariaDB Package Repository setup script automatically configures your system to install packages from the MariaDB Package Repository.

To use the script, execute the following command:

$ curl -sS https://downloads.mariadb.com/MariaDB/mariadb_repo_setup | sudo bash

It will responds with something like this:

[info] Repository file successfully written to /etc/yum.repos.d/mariadb.repo.
[info] Adding trusted package signing keys...
[info] Succeessfully added trusted package signing keys.

The script will also install the GPG public keys used to verify the signature of MariaDB software packages. If you want to avoid that, then you can use the --skip-key-import option.

If you want to download the script, rather than executing it, then you can do so in the following way:

$ curl -O https://downloads.mariadb.com/MariaDB/mariadb_repo_setup

MariaDB Server and Client Installation

After we've added MariaDB repository, let's continue with installation itself. At your shell, type:

$ sudo yum install MariaDB-server MariaDB-client 

System will respond similar like this:

... some lines snipped

Dependencies Resolved

================================================================================================
 Package                    Arch        Version                         Repository         Size
================================================================================================
Installing:
 MariaDB-client             x86_64      10.4.6-1.el7.centos             mariadb-main       12 M
     replacing  mariadb.x86_64 1:5.5.60-1.el7_5
 MariaDB-compat             x86_64      10.4.6-1.el7.centos             mariadb-main      2.8 M
     replacing  mariadb-libs.x86_64 1:5.5.60-1.el7_5
 MariaDB-server             x86_64      10.4.6-1.el7.centos             mariadb-main       25 M
Installing for dependencies:
 MariaDB-common             x86_64      10.4.6-1.el7.centos             mariadb-main       81 k
 boost-program-options      x86_64      1.53.0-27.el7                   base              156 k
 galera-4                   x86_64      26.4.2-1.rhel7.el7.centos       mariadb-main      9.4 M

Transaction Summary
================================================================================================
Install  3 Packages (+3 Dependent packages)

Total download size: 49 M
Is this ok [y/d/N]: y

Just press "y" and "Enter". System will continue with MariaDB server and client installation.

Verify Installation

Let's verify that we've correctly installed MariaDB 10.4. At your shell, type:

$ mysql --version

You should see something like this:

mysql  Ver 15.1 Distrib 10.4.6-MariaDB, for Linux (x86_64) using readline 5.1

MariaDB configuration

Usually the first thing you would've done after MariaDB installation is setting up a password for unprotected superuser account. This is not the case now. But if you want to do it anyway, to set root password just type this command:

$ sudo mysql

Your terminal will change to MariaDB monitor. It's like a terminal where you can enter your SQL commands there. To set root password, enter this command:

MariaDB [(none)]> ALTER USER [email protected] IDENTIFIED VIA mysql_native_password USING PASSWORD("verysecret");

Change "verysecret" with your preferred password.

If you've forgotten your root password, no problem — you can still connect using sudo and change the password.

Add User

To add another user, supply these commands to your MariaDB monitor:

MariaDB [(none)]> CREATE USER 'adjie'@'localhost' IDENTIFIED BY 'verysecret';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON *.* TO 'adjie'@'localhost' WITH GRANT OPTION;
MariaDB [(none)]> FLUSH PRIVILEGES;

As usual, change "verysecret" with your preferred password.

Restore Databases

Although in most cases you should still see your existing database after upgrade to MariaDB 10.4, it's still possible that your databases wiped out. No worries, if you followed this guide exactly as it is, you should already have database backup. To restore your database using this command:

$ mysql -u [uname] -p[pass] < [backupfile.sql]

Final Words

I hope that you now know how to install MariaDB 10.4 on CentOS 7. If you run into any issues or have any feedback feel free to drop a comment below.

Tags
Share:

0 comment

Leave a reply

Your email address will not be published. Required fields are marked *