the GRUB manual

The GRand Unified Bootloader, version 0.90, 5 July 2001.

This is the documentation of GNU GRUB, the GRand Unified Bootloader, a flexible and powerful boot loader program for PCs.

This edition documents version 0.90.

• Introduction to GRUB
  • Overview
  • History of GRUB
  • GRUB features
  • The role of a boot loader
• Naming convention
• Installation
  • Creating a GRUB boot floppy
  • Installing GRUB natively
  • Installing GRUB using grub-install
• Booting
  • How to boot operating systems
    • How to boot an OS directly with GRUB
    • Load another boot loader to boot unsupported operating systems
  • Some caveats on OS-specific issues
    • GNU/Hurd
    • GNU/Linux
    • FreeBSD
    • NetBSD
    • OpenBSD
    • DOS/Windows
    • SCO UnixWare
• Configuration
• Downloading OS images from a network
  • How to set up your network
  • Booting from a network
• Using GRUB via a serial line
• Protecting your computer from cracking
• GRUB image files
• Filesystem syntax and semantics
  • How to specify devices
  • How to specify files
  • How to specify block lists
• GRUB's user interface
  • The flexible command-line interface
  • The simple menu interface
  • Editing a menu entry
  • The hidden menu interface
• The list of available commands
  • The list of commands for the menu only
    • default
    • fallback
    • hiddenmenu
    • timeout
    • title
  • The list of general commands
    • bootp
    • color
    • device
    • dhcp
    • hide
    • ifconfig
    • partnew
    • parttype
    • password
    • rarp
    • serial
    • setkey
    • terminal
    • tftpserver
    • unhide
  • The list of command-line and menu entry commands
    • blocklist
    • boot
    • cat
    • chainloader
    • cmp
    • configfile
    • debug
    • displayapm
    • displaymem
    • embed
    • find
    • fstest
    • geometry
    • halt
    • help
    • impsprobe
    • initrd
    • install
    • ioprobe
    • kernel
    • lock
    • makeactive
    • map
    • md5crypt
    • module
    • modulenounzip
    • pause
    • quit
    • reboot
    • read
    • root
    • rootnoverify
    • savedefault
    • setup
    • testload
    • testvbe
    • uppermem
    • vbeprobe
• Error messages reported by GRUB
  • Errors reported by the Stage 1
  • Errors reported by the Stage 1.5
  • Errors reported by the Stage 2
• Invoking the grub shell
  • Introduction into the grub shell
  • How to install GRUB via @command{grub}
  • The map between BIOS drives and OS devices
• Invoking grub-install
• Invoking grub-md5-crypt
• Invoking mbchk
• Frequently asked questions
• How to obtain and build GRUB
• Reporting bugs
• Where GRUB will go
• Hacking GRUB
  • The memory map of various components
  • Embedded variables in GRUB
  • The generic interface for filesystems
  • The generic interface for built-ins
  • The bootstrap mechanism used in GRUB
  • How to probe I/O ports used by INT 13H
  • How to detect all installed RAM
  • INT 13H disk I/O interrupts
  • The structure of Master Boot Record
  • The format of partition tables
  • Where and how you should send patches
• Index

This document was generated on 15 October 2001 using the texi2html translator version 1.54.