之前的多种方法比如修改menu.list之类的，在Ubuntu 11已经不能用了。不过11也提供了 一个非常简易的办法：打开终端，输入命令：sudo gedit /boot/grub/grub.cfg ，找到你想调整的系统菜单选项，剪切，粘贴...  

sudo cp /boot/grub/menu.lst /boot/grub/menu.lst_backup sudo gedit /boot/grub/menu.lstChange default=0 to default=whatever whatever here means the sequence of the OS you have in menu.lst ...  

Since last time I lost my Grub, I did not have time to fix it. So today when I got up, I finally decided to solve this problem. After ten minutes or so, I found it quite simple: 1. Find...