How to upgrade MySQL & MariaDB on Linux Cloud Servers

2020-06-29 By Sam 19439 Views linux mysql mariadb development

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MySQL & MariaDB are open-source relational database management systems and are possible to use in most Linux distributions. It uses SQL (Structured Query Language) to manage its data.

This guide outlines the basic steps required to upgrade MySQL and MariaDB on Linux systems.

To upgrade MySQL 5.6 to 5.7 on CentOS 7

Check the current version of MySQL on the server.
```
# mysql --version
```
Before initiating the upgrade, take the full backup of all databases that exist on the server with the below command.
```
# mysqldump -u root -p --all-databases > /tmp/all-database.sql
```
Enter the root password and then the all-database.sql will be created under /tmp directory:
Stop MySQL service with the below command.
```
# systemctl stop mysqld
```
Now create the backup of the current MySQL data with the below command.
```
# cp -r /var/lib/mysql /var/lib/mysql.backup
```
Download the MySQL RPM which needs to upgrade. Here downloading the MySQL 5.7 RPM to /tmp directory with the below command.
```
# wget http://repo.mysql.com/mysql57-community-release-el7.rpm -P /tmp/
```
List the /tmp directory on the server to verify whether it downloaded.
```
# cd /tmp/

# ll | grep mysql
```
Now need to remove the MySQL-Community RPM that contains the current version of MySQL 5.6.
```
# yum remove mysql-community-release
```

Install the recently downloaded MySQL 5.7 RPM/

# rpm -ivh /tmp/mysql57-community-release-el7.rpm

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Update the MySQL repository to the recently installed 5.7.
```
# yum update mysql
```
Now restart the MySQL service and check the version with the below commands.
```
# systemctl restart mysqld

# mysql --version
```
Here from the last image, you can verify that the MySQL service upgraded from 5.6 to 5.7.

To upgrade MySQL 5.7 to 8.0 on Ubuntu/Debian

Check the current version of the MySQL on the server
```
# mysql --version
```
Before initiating the upgrade, take the full backup of all databases that exist on the server with the below command.
```
# mysqldump -u root -p --all-databases > /tmp/all-database.sql
```
Enter the root password and then the all-database.sql will be created under /tmp directory:
Stop MySQL service with the below command.
```
# systemctl stop mysql.service
```
Now create the backup of the current MySQL data with the below command.
```
# cp -r /var/lib/mysql /var/lib/mysql.backup
```

Now download the MySQL APT repository.

# wget https://repo.mysql.com//mysql-apt-config_0.8.14-1_all.deb

upgradedb14

Then add the MySQL APT repository to the server’s software repository list with the below command.
```
# dpkg -i mysql-apt-config_0.8.14-1_all.deb
```
The below screens will get and select the MySQL Server & Cluster option and press enter.

Now select the mysql-8.0 and press OK.

Click on the below-mentioned OK to finish.

Then will get the below message.
Now update the server and install the latest MySQL using the below commands.
```
# apt-get update

# apt-get install mysql-server
```
Now restart the MySQL service and check the version with the below commands.
```
# systemctl restart mysql.service

# mysql --version
```
Here from the last image, you can verify that the MySQL service upgraded from 5.7 to 8.0.

To upgrade MariaDB 5.5 to 10.1 on CentOS 7

Check the current version of the MariaDB on the server and Enter the MariaDB root password.
```
# mysqladmin -u root -p version
```
Before initiating the upgrade, take the full backup of all databases that exist on the server with the below command.
```
# mysqldump -u root -p --all-databases > /tmp/all-database.sql
```
Enter the MariaDB root password and then the all-database.sql will be created under /tmp directory.
Stop MariaDB service with the below command.
```
# systemctl stop mariadb
```
Now create the backup of the current MariaDB data with the below command.
```
# cp -r /var/lib/mysql /var/lib/mysql.backup
```

Now need to add the latest MariaDB 10.1 repo for CentOS 7 distributions. For that add the following text in /etc/yum.repos.d/MariaDB10.repo with the text editor vi.

# MariaDB 10.1 CentOS repository list - created 2016-01-18 09:58 UTC

# http://mariadb.org/mariadb/repositories/

[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.1/centos7-amd64
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1

upgradedb26

Now remove the current MariaDB 5.5 from the server with the below command.
```
# yum remove mariadb-server mariadb mariadb-libs
```
Then remove the repository cache with the below command.
```
# yum clean all
```
Now proceed with the Installation MariaDB 10.1.
```
# yum install MariaDB-server MariaDB-client
```
Once the installation is completed, start and enable MariaDB.
```
# systemctl start mariadb

# systemctl enable mariadb
```
Now run the below command to check the new version of MariaDB.
```
# mysqladmin -u root -p version
```
Enter the MariaDB root password.
Here from the last image, you can verify that the MariaDB server upgraded from 5.5 to 10.1.

To upgrade MariaDB 10.1 to 10.5 on Ubuntu/Debian

Run the below command to check the current version of the MariaDB on the server and Enter the MariaDB root password.
```
# mysqladmin -u root -p version
```
Before initiating the upgrade, take the full backup of all databases that exist on the server with the below command.
```
# mysqldump -u root -p --all-databases > /tmp/all-database.sql
```
Enter the MariaDB root password and then the all-database.sql will be created under /tmp directory:
Stop MariaDB service with the below command.
```
# systemctl stop mariadb
```
Now create the backup of the current MariaDB data with the below command.
```
# cp -r /var/lib/mysql /var/lib/mysql.backup
```

Now run the below commands to add the MariaDB PPA on the server.

# apt-get install software-properties-common

upgradedb36

# apt-key adv --fetch-keys 'https://mariadb.org/mariadb_release_signing_key.asc'

upgradedb37

# add-apt-repository 'deb [arch=amd64,arm64,ppc64el] http://mirrors.supportex.net/mariadb/repo/10.5/ubuntu bionic main'

upgradedb38

NOTE: Replace ubuntu bionic with your distribution name and release.

Now remove the current MariaDB 10.1 from the server with the below command.
```
# apt remove mariadb-server
```
Then remove the repository cache with the below command.
```
# apt-get clean all
```
Now proceed with the Installation MariaDB 10.5
```
# apt-get install mariadb-server
```
Once the installation is completed, start and enable MariaDB.
```
# systemctl start mariadb

# systemctl enable mariadb
```
Now run the below command to check the new version of MariaDB.
```
# mysqladmin -u root -p version
```
Enter the MariaDB root password.
Here from the last image, you can verify that the MariaDB server upgraded from 10.1 to 10.5.

How to upgrade MySQL & MariaDB on Linux Cloud Servers

To upgrade MySQL 5.6 to 5.7 on CentOS 7

To upgrade MySQL 5.7 to 8.0 on Ubuntu/Debian

To upgrade MariaDB 5.5 to 10.1 on CentOS 7

To upgrade MariaDB 10.1 to 10.5 on Ubuntu/Debian

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