3.6通过面板安全重启之后 mysql无法启动

3.6通过面板安全重启之后 mysql无法启动，请问怎么办。各种方法都试了，无法启动。

Last login: Tue Apr 11 10:23:47 2017 from 113.102.224.69
[root@VM_205_88_centos ~]# ./mysql.server  start
-bash: ./mysql.server: No such file or directory
[root@VM_205_88_centos ~]# mysql.server  start
-bash: mysql.server: command not found
[root@VM_205_88_centos ~]# service mysqld start
Starting MySQL. ERROR! The server quit without updating PID file (/www/server/data/VM_205_88_centos.pid).
[root@VM_205_88_centos ~]# service mysqld restart
ERROR! MySQL server PID file could not be found!
Starting MySQL. ERROR! The server quit without updating PID file (/www/server/data/VM_205_88_centos.pid).
[root@VM_205_88_centos ~]# service mysqld restart
ERROR! MySQL server PID file could not be found!
Starting MySQL. ERROR! The server quit without updating PID file (/www/server/data/VM_205_88_centos.pid).
[root@VM_205_88_centos ~]# service mysqld start
Starting MySQL. ERROR! The server quit without updating PID file (/www/server/data/VM_205_88_centos.pid).
[root@VM_205_88_centos ~]#

检查硬盘内存空间是否占用满了
检查/www/server/data这个目录和/www/server/mysql这个目录权限是否是mysql权限
检查/etc/my.cnf这个配置文件是否存在

或者分析错误日志
cat /www/server/data/*.err

河妖 发表于 2017-4-11 14:32
检查硬盘内存空间是否占用满了
检查/www/server/data这个目录和/www/server/mysql这个目录权限是否是mysql ...

1和3都检测过了没问题
mysql权限请问怎么设置，我是小白。

进ssh 输入ll /www/server/data