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Initial stab at Mach-style partition names, LBA mode, and documentation.
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\input texinfo @c -*-texinfo-*-
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@setfilename grub.info
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@include version.texi
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@dircategory Kernel
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@direntry
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* GRUB: (grub). The GRand Unified Bootloader.
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@end direntry
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@ifinfo
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Copyright @copyright{} 1996 Erich Boleyn
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Copyright @copyright{} 1999 Free Software Foundation, Inc.
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Permission is granted to make and distribute verbatim copies of
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this manual provided the copyright notice and this permission notice
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are preserved on all copies.
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@ignore
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Permission is granted to process this file through TeX and print the
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results, provided the printed document carries a copying permission
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notice identical to this one except for the removal of this paragraph
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(this paragraph not being relevant to the printed manual).
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@end ignore
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Permission is granted to copy and distribute modified versions of this
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manual under the conditions for verbatim copying, provided also that
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the entire resulting derived work is distributed under the terms of a
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permission notice identical to this one.
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Permission is granted to copy and distribute translations of this manual
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into another language, under the above conditions for modified versions.
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@end ifinfo
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@c @setchapternewpage odd
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@settitle GRUB Manual
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@titlepage
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@finalout
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@title The GRUB Manual
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@author Gordon Matzigkeit
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@page
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@vskip 0pt plus 1filll
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Copyright @copyright{} 1996 Erich Boleyn
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Copyright @copyright{} 1999 Free Software Foundation, Inc.
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Permission is granted to make and distribute verbatim copies of
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this manual provided the copyright notice and this permission notice
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are preserved on all copies.
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Permission is granted to copy and distribute modified versions of this
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manual under the conditions for verbatim copying, provided also that
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the entire resulting derived work is distributed under the terms of a
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permission notice identical to this one.
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Permission is granted to copy and distribute translations of this manual
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into another language, under the above conditions for modified versions.
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@end titlepage
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@node Top
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@top GRUB
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This file documents GNU GRUB, the Grand Unified Bootloader. This
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edition documents version @value{VERSION}.
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@menu
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* Introduction:: Capturing the spirit of GRUB.
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@detailmenu
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--- The Detailed Node Listing ---
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Introduction
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* History:: From maggot to house fly.
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* Features:: How GRUB is different.
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* Role of a bootloader:: Judging a system by its bootloader.
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@end detailmenu
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@end menu
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@node Introduction
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@chapter Introduction
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Briefly, a @dfn{bootloader} is the first software program that runs when
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a computer starts. It is responsible for loading and transferring
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control to the operating system @dfn{kernel} software (such as the Linux
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or Hurd kernels). The kernel, in turn, initializes the rest of the
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operating system (usually GNU).
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@menu
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* History:: From maggot to house fly.
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* Features:: How GRUB is different.
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* Role of a bootloader:: Judging a system by its bootloader.
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@end menu
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@node History
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@section History of GRUB
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GRUB originated in 1995 when Erich Boleyn was trying to boot the GNU
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Hurd with the University of Utah's Mach 4 microkernel (now known as GNU
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Mach). Erich and Brian Ford designed the Multiboot Standard (FIXME
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xref), because they were determined not to add to the large number of
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mutually-incompatible PC boot methods.
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Erich then began modifying the FreeBSD bootloader so that it would
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understand Multiboot. He quickly realized that it would be a lot easier
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to write his own bootloader from scratch than to keep working on the
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FreeBSD bootloader, and so GRUB was born.
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Erich added many features to GRUB, but other priorities prevented him
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from keeping up with the demands of its quickly-expanding user base. In
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1999, Gordon Matzigkeit adopted GRUB as an official GNU package, and
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opened its development by making the latest sources available via
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anonymous CVS.@footnote{The repository is
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@code{:pserver:anoncvs@@anoncvs.gnu.org:/gd/gnu/anoncvsroot}, module
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@code{grub}. Just hit return when prompted for a password.}
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@node Features
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@section GRUB features
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technical.html: why another bootloader?
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@node Role of a bootloader
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@section The role of a bootloader
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The following is a quotation from Gordon Matzigkeit, a GRUB fanatic:
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@quotation
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Some people like to acknowlege both the operating system and kernel when
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they talk about their computers, so they might say they use
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``GNU/Linux'' or ``GNU/Hurd''. Other people seem to think that the
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kernel is the most important part of the system, so they like to call
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their GNU operating systems ``Linux systems.''
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I, personally, believe that this is a grave injustice, because the
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@emph{bootloader} is the most important software of all. So, I used to
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refer to the above systems as either ``LILO''@footnote{The LInux LOader,
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a bootloader that everybody uses, but nobody likes.} or ``GRUB''
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systems.
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Unfortunately, nobody ever understood what I was talking about; now I
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just use the word ``GNU'' as a pseudonym for GRUB.
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So, if you ever hear people talking about their alleged ``GNU'' systems,
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remember that they are actually paying homage to the best bootloader
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around@dots{} GRUB!
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@end quotation
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We, the GRUB maintainers, do not (usually) encourage Gordon's level of
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fanaticism, but it helps to remember that bootloaders deserve careful
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design. We hope at least that you enjoy using GNU GRUB as much as we
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did writing it.
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@chapter Using
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@section using.html
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@chapter Boot scripts
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@section commands.txt
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@chapter Disk partitions
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@chapter Filesystems
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@section filesystem.txt
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@chapter Troubleshooting
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@section errors.html
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@chapter Multiboot
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@section boot-proposal.html
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@chapter Implementation
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@section technical.html
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@section embedded_data.txt
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@section PC_patitioning.txt
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@bye
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