报错:

Warning: mysqld.service changed on disk. Run 'systemctl daemon-reload' to reload units.

 警告：磁盘上的mysqld.service已更改。运行“systemctl daemon-reload”重新加载单位。根据提示执行“systemctl daemon-reload”即可

解决办法:

　　根据提示执行“systemctl daemon-reload”即可