mysqld permission denied 启动失败解决方式

[ERROR] [MY-013129] [Server] A message intended for a client cannot be sent there as
       no client-session is attached. Therefore, we're sending the information to the error-log instead: MY-000001 - Can
      't create/write to file '/var/run/mysqld/mysqld.pid' (OS errno 13 - Permission denied)

解决办法: chown -R mysql:mysql /var/run/mysqld

(code=exited, status=1/FAILURE)
Status: "SERVER_BOOTING"
Error: 13 (Permission denied)

解决方法: chown -R mysql:mysql /var/lib/mysql
或chown -R mysql:mysql ${mysql安装文件夹}