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chroot 妙用

同学的机器出问题了,开机总出"Kernel panic",估计是内核有问题,但是grub是好的,因为Windows还可以进去。

一开始有个想法,就是用LiveCD启动,然后用aptitude更新,不过考虑到它应该会把文件写在临时的/里,而不是硬盘里,所以本质上不起作用。

后来那个同学Google到了chroot命令,恰好满足了这个要求,这时只要把硬盘mount进来,然后chroot过去,最后aptitude更新一下,ok了!

神奇的chroot,为什么之前没发现?

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