本文档主要讲述了GRUB的使用；GRUB 2 是源自于一个名为 PUPA 的项目，目的是建立下一代的 boot loader。GRUB 2 几乎是从零开始开始开发的，它和 GRUB Legacy 不同的地方有很多，例如支持 scr ipts、国际化语言、动态加载模块、带有 resuce 模式等等。-This document describes the use GRUB　GRUB 2 is derived from a project known as PUPA, aims to build the next generation of boot loader. GRUB 2 development started almost from scratch, it GRUB Legacy has a lot of different places, such as support for scr ipts, international language, dynamic load module, with a resuce mode and so on.