Ubuntu10.04 "No init found. Try passing init= bootarg"解决方案

在winxp中把ubuntu根分区调小了，结果从grub启动时出现以下类似错误：

mount: mounting /dev/disk/by-uuid/***************************** on /root
failed: Invalid argument
mount: mounting /sys on /root/sys failed: No such file or directory
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 file system doesn't have /sbin/init
No init found. Try passing init= bootarg

Busybox v1.13.3 (Ubuntu 1:1.13.3-1ubuntu7) built-in shell (ash)
Enter 'help' for a list of built-in commands
(initramfs) _

解决办法是：用livecd进入，然后fsck /dev/sda?(根分区位置)
国外ubuntu论坛上有个帖子，对这问题谈得非常好。