AlmaLinux 9 with cPanel: MySQL 8 to MariaDB 10.11 Guide

AlmaLinux 9 with cPanel: MySQL 8 to MariaDB 10.11 Guide

Important Notice for New Installations with MySQL 8

Transitioning from MySQL 8.0 to MariaDB 10.11 on a New cPanel & WHM Server

If you’ve recently installed cPanel and it defaulted to MySQL 8, but you wish to switch to MariaDB 10.11, ensure your server is new with no pre-existing databases before proceeding. This change is experimental and not supported officially.

Warning: This migration method is entirely experimental and unsupported. Please refrain from contacting cPanel support for issues related to this guide.

If you initially forgot to set your preferred database in /root/cpanel_profile/cpanel.config during your recent installations of cPanel & WHM, here’s a guide allowing a seamless switch from the default MySQL to MariaDB 10.11:

Step-by-Step Guide to Migrate from MySQL 8.0 to MariaDB 10.11

As the root user, start by removing MySQL 8.0:

dnf -y remove mysql-community-*

Next, completely remove the MySQL data directory:

rm -rf /var/lib/mysql

Update the desired SQL version in the cPanel configuration:

sed -i 's/mysql-version=8.0/mysql-version=10.11/g' /var/cpanel/cpanel.config

Begin the MariaDB installation with this API command:

whmapi1 start_background_mysql_upgrade version=10.11

To monitor the installation progress:

tail -f /var/cpanel/logs/mysql_upgrade.YYYYMMDD-HHMMSS/unattended_background_upgrade.log

After installation, check the MySQL version to verify the update:

mysql -V

Customizing MySQL or MariaDB Version During Initial cPanel Setup

To set a specific database version during the initial installation of cPanel, follow these steps:

Adjust the RPM Installation Preferences:

echo "mysql-server=mysql-version=10.11" > /etc/cpanel_mysql_installation.profile

Database Version Options:

# For MySQL 8
mysql-version=8.0

# For MariaDB 10.6
mysql-version=10.6

# For MariaDB 10.5
mysql-version=10.5

# For MariaDB 10.11
mysql-version=10.11

cPanel Installation Overview on AlmaLinux

For a detailed walkthrough of installing cPanel on AlmaLinux, refer to cPanel’s official installation guide.

Prerequisites for AlmaLinux 9:

Before installing, ensure your system is updated:

sudo dnf update -y

Update /etc/resolv.conf:

# Google DNS
nameserver 8.8.8.8
nameserver 8.8.4.4

# Cloudflare DNS
nameserver 1.1.1.1
nameserver 1.0.0.1

Then download and run the cPanel installation script:

cd /home
curl -o latest -L https://securedownloads.cpanel.net/latest
sh latest

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