Job for mysqld.service failed because the control process exited with error code. See "systemctl status mysqld.service" and "journalctl -xe" for details. Ⅰ、服务器报错信息Ⅱ、报错原因Ⅲ、解决方案 Ⅰ、服务器报错信息 Ⅱ、报错原因 mysql的权限缺失。 Ⅲ、解决方案 跟着输入一下命令赋权就好了