香港服务器的ubuntu更新引导的方法：

1.使用快捷键【Ctrl+Alt+T】打开终端命令模式。

2.通过输入以下命令更新即可。

sudo update-grub #更新引导

运行结果如下：

Generating grub configuration file …

Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.

Found linux image: /boot/vmlinuz-3.13.0-24-generic

Found initrd image: /boot/initrd.img-3.13.0-24-generic

Found memtest86+ image: /memtest86+.elf

Found memtest86+ image: /memtest86+.bin

Found Windows 8 (loader) on /dev/sda1

done