systemctl start mariadb systemctl status mariadb rpm -e --nodeps mariadb mariadb-server mariadb-libs rpm -Uvh http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm ###找你要的源 yum install mysql-community-server ln -s /usr/lib/systemd/system/mysqld.service /usr/lib/systemd/system/mariadb.service ln -s /etc/systemd/system/multi-user.target.wants/mysqld.service /etc/systemd/system/multi-user.target mysql_upgrade -u admin -p systemctl start mysqld.service mysql_upgrade -u admin -p