我刚刚安装了 Ubuntu 12.10 以使用 Windows 8 双启动，但是每次我从 grub 菜单中选择 Ubuntu 时，它总是卡在这个错误并且无法启动：
Gave up waiting for root device. Common problems:
- Boot args (cat /proc/cmdline)
- Check rootdelay= (did the system wait long enough?)
- Check root= (did the system wait for the right device?)
- Missing modules (cat /proc/modules; ls /dev)
ALERT! /dev/disk/by-uuid/920903aa-762f-40d2-8126-87f4b0e6f975 does not exist. Dropping to a shell!
BusyBox v1.19.3 (Ubuntu 1:1.10.3-7ubuntu1.1) built-in shell (ash)
Enter 'help' for a lost of built-in commands.
(initramfs)
我尝试过boot-repair，但没有帮助，这是生成它的日志 …
boot ×1