Linux服务器意外关机，开机提示一下信息:an error occurred during the file system check.

解决方法，root密码 执行 fdisk -l    查看磁盘 
(Repair filesystem)# fdisk -l   根据看到的磁盘依次修复 ，例如: 
(Repair filesystem)#fsck -y /dev/sda1 
(Repair filesystem)#fsck -y /dev/sda2 
(Repair filesystem)#fsck -y /dev/sda3 
(Repair filesystem)#fsck -y /dev/sda4