http://www.ubuntugeek.com/fix-for-cant-login-after-upgrading-from-ubuntu-13-04-to-ubuntu-13-10.html I had the same problem and found a thread elsewhere that solved the problem in a different way. As above, at the login screen use Cntrl+Alt+F1 to open…
背景介绍:同事的一台索尼的笔记本,安装XP.开机启动出现“Operating System Not Found”无法进系统 诊断: 初步判断硬盘故障.但听声音,没有异响. 开机按F2进入BIOS设置.发现没有认到硬盘. 于是判断硬盘没有接好.关机,取掉笔记本电池,拆开索尼笔记本后盖,拿掉硬盘接线. 更换一块硬盘,可以认到.表明主板没有损坏. 重新插拔原来硬盘,开机选择最后一次正确的配置,故障恢复,一切正常.…