# wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm

# rpm -ivh mysql-community-release-el7-5.noarch.rpm

# yum install mysql-community-server

 

成功安装之后重启mysql服务

 # service mysqld restart

初次安装mysql是root账户是没有密码的

设置密码的方法

 # mysql -u root

mysql > set password for 'root'@'localhost' = password('your password');

 

搞定，简单粗暴