1、卸载原始mysql-lib
sudo rpm -e --nodeps mysql-libs-xx
2、yum安装mysql-server
sudo yum -y install mysql -server
ps：注意联网状态，和yum源/etc/yum.repos.d/xxx
更新软件 sudo yum update xxx
3、配置开机启动项
sudo chkconfig --list | grep mysql
sudo service mysqld start
sudo chkconfig mysqld on
4、配置
设置密码：
mysqladmin -u root password 'new-password'
进入mysql:
mysql -uroot -p
设置mysql连接权限
show databases;
use mysql;
grant all privileges on *.* to 'root'@'%' identified by 'root' with grant option;
select User,Host from user;
delete from user where Host !='%';
flush privileges;
quit;
sudo service mysqld restart