whereis mysql
yum remove mysql-libs
yum clean dbcache
wget http://repo.mysql.com/mysql-community-release-el6-5.noarch.rpm
rpm -ivh mysql-community-release-el6-5.noarch.rpm
yum install mysql-community-server
service mysqld start
mysql -uroot
use mysql;
update user set password=PASSWORD("YOUR_PASSWORD") where user='root';
flush privileges;
quit
mysql -uroot -p