Percona Mysql 5.6.* Minor version upgrade

 Today i upgraded percona mysql version 5.6.46-86.2 to 5.6.51-91.0.

This was a minor version upgrade for testing purposes and below are the steps i have used on Centos 7.7

Before starting ensure you have a backup of database and backup of my.cnf (db config file).

Install Versions 5.6.46-86.2 on Centos

Before starting install percona repo using yum:

$yum install https://repo.percona.com/yum/percona-release-latest.noarch.rpm

To test the repo:

yum list | grep percona

Install Percona Mysql server based on your version requirement as below using yum:

1. yum -q install Percona-Server-server-56-5.6.46-rel86.2.1.el7 Percona-Server-client-56-5.6.46-rel86.2.1.el7 Percona-Server-shared-56-5.6.46-rel86.2.1.el7

the above should run nicely on the server and install the server as per the default setup on centos. 

Start the database using service mysqld start

2. Login to the server and create a few database 

mysql > create database test1;

mysql> create database test2;

mysql> create database test3;

3. Remove the above installed version using : 

  yum remove Percona-Server* (this should remove installed version and not the db related files)

4. Install the latest version or required version using below :

    yum install Percona-Server-server-56

 After successful completion start mysqld service : service mysqld start

This should bring up the service and you should be able to login

mysql > select @@version:

 5.6.51-91.0

mysql > show databases;

  information_schema

  mysql

  performance_schema

  test1

  test 2

  test3

We have successfully completed minor database version upgrade with this.