一不小心，把VirtualBox中的系统升级到13.04，重启后是黑屏，左上角有不停闪烁的光标，有补救的方法吗？
人生最曼妙的风景，竟是内心的淡定与从容！
It’s rare that Ubuntu doesn’t crash after a major version upgrade. Use livecd to fix it.
View startup log.
How did you upgrade?
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It’s rare that Ubuntu doesn’t crash after a major version upgrade. Use livecd to fix it.
View startup log.
How did you upgrade?