grub2 rescute模式下, 可以使用下面的命令启动
grub rescue> set prefix=(hd0,1)/boot/grub grub rescue> set root=(hd0,1) grub rescue> insmod normal grub rescue> normal grub rescue> insmod linux grub rescue> linux /boot/vmlinuz-3.13.0-29-generic root=/dev/sda1 grub rescue> initrd /boot/initrd.img-3.13.0-29-generic grub rescue> bootgrub rescue> se
