Upgrading from the earlier MySQL RPM Format to Yum Repos

The packages that are available in the yum repos contain a number of enhancements over the RPM packages that are available from dev.mysql.com.
Norvald blogged on some of these enhancements earlier. Today I wanted to walk through a safe upgrade path, as they are not quite compatible with each-other.

My Existing Installation

To start with, the packages I have installed came from “Red Hat Enterprise Linux 6 / Oracle Linux 6 (x86, 64-bit), RPM Bundle” on dev.mysql.com. You can check which packages you have installed with:

[root@localhost ~]# rpm -qa | grep -i mysql

Uninstalling and Installing Yum repos

I recommend first running yum update before removing, and then installing the new repo:

yum update
yum localinstall http://repo.mysql.com/mysql-community-release-el6-3.noarch.rpm

After this step, stop MySQL (note the missing d in the dev.mysql.com packages):

service mysql stop

Now with yum shell it’s possible to uninstall the existing packages (listed in ‘my existing installation’ above) and install the replacement packages from the yum repo in one step:

yum shell
 > remove MySQL-shared MySQL-devel MySQL-test MySQL-server MySQL-client MySQL-shared-compat MySQL-embedded
 > install mysql-server mysql-libs mysql-libs-compat
 > run
 > quit

Here was the summary output from my yum session:

 Package                                     Arch                   Version                      Repository                                                 Size
 mysql-community-libs                        x86_64                 5.6.14-3.el6                 mysql-community                                           1.8 M
 mysql-community-libs-compat                 x86_64                 5.6.14-3.el6                 mysql-community                                           1.6 M
 mysql-community-server                      x86_64                 5.6.14-3.el6                 mysql-community                                            51 M
 MySQL-client                                x86_64                 5.6.14-1.el6                 @/MySQL-client-5.6.14-1.el6.x86_64                         81 M
 MySQL-devel                                 x86_64                 5.6.14-1.el6                 @/MySQL-devel-5.6.14-1.el6.x86_64                          19 M
 MySQL-embedded                              x86_64                 5.6.14-1.el6                 @/MySQL-embedded-5.6.14-1.el6.x86_64                      432 M
 MySQL-server                                x86_64                 5.6.14-1.el6                 @/MySQL-server-5.6.14-1.el6.x86_64                        235 M
 MySQL-shared                                x86_64                 5.6.14-1.el6                 @/MySQL-shared-5.6.14-1.el6.x86_64                        8.4 M
 MySQL-shared-compat                         x86_64                 5.6.14-1.el6                 @/MySQL-shared-compat-5.6.14-1.el6.x86_64                  11 M
 MySQL-test                                  x86_64                 5.6.14-1.el6                 @/MySQL-test-5.6.14-1.el6.x86_64                          318 M
Installing for dependencies:
 mysql-community-client                      x86_64                 5.6.14-3.el6                 mysql-community                                            18 M
 mysql-community-common                      x86_64                 5.6.14-3.el6                 mysql-community                                           296 k
Transaction Summary
Install       5 Package(s)
Remove        7 Package(s)

MySQL should now be installed from the yum packages. You just have two more steps to complete – start it, and configure it on boot:

service mysqld start # note the added 'd'
chkconfig mysqld on

Your original /etc/my.cnf is even saved. You can compare it to /etc/my.cnf.rpmnew if you would like to consider switching to the new one.
Still having problems? I recommend heading to the MySQL Forums. There is a section dedicated to Install & Repo help.