Upgrade MySQL from 5.1 to 5.5 on CentOS 6.x

Check installed version of mysql

rpm -qa | grep mysql

Enable the remi repository by modifying the enabled flag in the repo file:

vi /etc/yum.repos.d/remi.repo

After that, perform upgrade and verify new version. (several methods included below…)

yum -y update mysql*
rpm -qa | grep mysql
mysql --version
mysql -u root -p


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