Redirecting to /bin/systemctl start mysql.service Job for mysqld.service failed because the control
原因是Linux服务器在启动时么有自动将MySQL所在的磁盘挂载到对应的文件目录下
mount /dev/vdb1 /data
ln -s /data/mysql/mysql_3306/mysql.sock /tmp/mysql.sock
service mysql start
systemctl status mysql