ubuntu 启动失败：target filesystem doesn't have requested /sbin/init

Ubuntu系统强制按电源键关机之后再重新启动失败，提示：

Killed

Mount: mounting /dev on /root/dev failed :no such file or directory

Mount: mounting /sys on /root/sys failed :no such file or directory

Mount: mounting /proc on /root/proc failed :no such file or directory

Target filesystem doesn’t have requested /sbin/init

No init found. Try passing init=bootarg

BusyBox v1.15.3 (Ubuntu 1:1.15.3-ubuntu5)built-in shell (ash)

Enter ‘help’ for a list of built-in commands.

(initramfs)_

 解决方法：

用live cd（U盘，光盘，其他硬盘等）启动ubuntu系统，使用fsck命令对硬盘进行修复即可。