Ubuntu9.04升级到9.10时出现错误，请求帮助

[dahan]

升级后要求重启。重启后很大一会不出现登陆界面，出现了这个提示：
Gave up waiting for root device.Common proplems:119174e3597
- Boot args (cat /proc/cmdline)
-check rootdeley= (did the system wait long enough?)
-check root =(did the system wait for the right devices?)
- Missing modules (cat /proc/modules;ls /dev)
ALERT! /dev/disk/by-uuid/104cfe2a-4369-4300-80b8-4119174e3597 does not exist.Dropping to a shell！

接下来就是个Shell了

[dahan]

我从昨晚11点就开始让它下载全面升级所需要的东西，总共1.6个多G到中午才搞定啊，谁知道根据提示让重启后就成了这样。