通过yum安装mysql
# yum install mariadb-server -y
# systemctl start mariadb.service
# systemctl enable mariadb.service
# mysql
如何设置mysql root密码
# mysql_secure_installation
#停止mysql并查看运行状态
systemctl stop mariadb.service
systemctl status mariadb.service
#将默认data存储路径修改为/data0下面，使用链接的方式
mkdir /data0/mysql /data0/mariadb
mv /var/lib/mysql/* /data0/mysql
mv /var/log/mariadb/* /data0/mariadb
rm -rf /var/lib/mysql /var/log/mariadb
ln -s /data0/mysql /var/lib/mysql
ln -s /data0/mariadb /var/log/mariadb
chown -R mysql:mysql /data0/mysql/ /data0/mariadb
