直接装mariadb
安装yum install -y mariadb-server
启动systemctl start mariadb.service
添加开机自启动systemctl enable mariadb.service
设置root密码登mysql_secure_installation
开root权限
mysql -u root -p
use mysql;select User,authentication_string,Host from user;
GRANT ALL PRIVILEGES ON . TO 'root'@'%' IDENTIFIED BY 'root';flush privileges;
exit;