This document provides instructions for upgrading from MySQL 5.0 to MySQL 5.6. It recommends making a complete backup before performing a manual upgrade which involves shutting down the existing server, removing old packages, installing new packages from Oracle, and running mysql_upgrade. Important details on incompatible changes between versions can be found in the MySQL manual. The second section provides step-by-step instructions for installing MySQL 5.6 RPM packages and restarting the service, along with notes on resolving errors.

1. MySQL 5.6 installation and upgradation. Step by step
configuration instructions.
******************************************************************
A MySQL server package (mysql­server­5.0.77­4.el5_5.4) is installed.
The current MySQL server package is provided by a different
vendor (CentOS) than MySQL AB, Sun Microsystems, Inc., or Oracle and/or its affiliates.
Some files may be installed to different locations, including log
files and the service startup script in /etc/init.d/.
Upgrading directly from MySQL 5.0 to MySQL 5.6 may not
be safe in all cases. A manual dump and restore using mysqldump is
recommended. It is important to review the MySQL manual's Upgrading
section for version­specific incompatibilities.
A manual upgrade is required.
­ Ensure that you have a complete, working backup of your data and my.cnf files.
­ Shut down the MySQL server cleanly
­ Remove the existing MySQL packages. Usually this command will
list the packages you should remove:
rpm ­qa | grep ­i '^mysql­'
You may choose to use 'rpm ­­nodeps ­ev <package­name>' to remove
the package which contains the mysqlclient shared library. The
library will be reinstalled by the MySQL­shared­compat package.
­ Install the new MySQL packages supplied by Oracle and/or its affiliates
­ Ensure that the MySQL server is started
­ Run the 'mysql_upgrade' program
This is a brief description of the upgrade process. Important details
can be found in the MySQL manual, in the Upgrading section.
******************************************************************
Mysql 5.6 RPM Installation steps
[root@test45 /]#rpm ­ivh MySQL­server­5.6.13­1.linux_glibc2.5.x86_64.rpm
[root@test45 /]#rpm ­ivh MySQL­client­5.6.13­1.linux_glibc2.5.x86_64.rpm
[root@test45 /]# rpm ­ivh MySQL­devel­5.6.13­1.linux_glibc2.5.x86_64.rpm
[root@test45 /]#service mysql restart

2. Note :­ if you get below error then
Starting MySQL ERROR! Couldn't find MySQL server (/var/lib/bin/mysqld_safe)
Starting MySQL ERROR! Couldn't find MySQL server (/var/lib/bin/mysqld_safe)
[root@test45 mysql]# service mysql restart
Shutting down MySQL.. SUCCESS!
Starting MySQL ERROR! Couldn't find MySQL server (/var/lib/bin/mysqld_safe)
[root@test45 mysql]# mkdir /var/lib/bin
[root@test45 mysql]# service mysql restart
ERROR! MySQL server PID file could not be found!
Starting MySQL ERROR! Couldn't find MySQL server (/var/lib/bin/mysqld_safe)
[root@test45 /]# find -name mysqlmanager
[root@test45 /]# find -name mysqld_safe
./usr/bin/mysqld_safe
[root@test45 /]# cp ./usr/bin/mysqld_safe /var/lib/bin/.
[root@test45 mysql]# service mysql restart
ERROR! MySQL server PID file could not be found!
Starting MySQL.. SUCCESS!
[root@test45 /]# service mysql status
SUCCESS! MySQL running (5697)
[root@test45 /]# rm -rf /usr/local/mysql/var/[MyNAS].pid
[root@test45 /]# !se
service mysql status
SUCCESS! MySQL running (5697)
Note:­ In Mysql5.6 A random root password has been set. You will find it in
'/root/.mysql_secret'.
#vim /root/.mysql_secret
Reset root password
#mysqladmin ­u root ­p'MUZOV9do' password *******
P@w@n Kumar