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第 9 章 GRUB 引导装载程序
When a computer with Red Hat Enterprise Linux is turned on, the operating system is loaded into memory by a special program called a boot loader. A boot loader usually exists on the system's primary hard drive (or other media device) and has the sole responsibility of loading the Linux kernel with its required files or (in some cases) other operating systems into memory.
9.1. 引导装载程序和系统架构
每个可以运行Red Hat Enterprise Linux的体系结构都使用不同引导装载程序。下表列出了不同体系结构所对应的引导装载程序：
表 9.1. 不同体系结构所使用的引导装载程序
| 体系结构 | 引导装载程序 |
|---|---|
| AMD® AMD64 | GRUB |
| IBM® eServer™ System i™ | OS/400® |
| IBM® eServer™ System p™ | YABOOT |
| IBM® System z® | z/IPL |
| IBM® System z® | z/IPL |
| Intel® Itanium™ | ELILO |
| x86 | GRUB |
本章讨论了 x86 体系结构下的Red Hat Enterprise Linux所包括的 GRUB 引导装载程序的命令和配置选项。