Grammar and spelling updates

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@9146 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
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Bruce Dubbs 2010-01-09 07:15:55 +00:00
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-->
<listitem>
<para>2009-12-10</para>
<itemizedlist>
<listitem>
<para>[bdubbs] Grammar and spelling updates from
Chris Staub. Fixes
<ulink url="&lfs-ticket-root;2548">#2548</ulink>.</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>2010-01-03</para>
<itemizedlist>

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<!ENTITY version "SVN-20100103">
<!ENTITY releasedate "January 3, 2010">
<!ENTITY version "SVN-20100110">
<!ENTITY releasedate "January 10, 2010">
<!ENTITY copyrightdate "1999-2010"><!-- jhalfs needs a literal dash, not &ndash; -->
<!ENTITY milestone "7.0">
<!ENTITY generic-version "development"> <!-- Use "development", "testing", or "x.y[-pre{x}]" -->

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<title>LFS Target Architectures</title>
<para>The primary target architecture of LFS is the 32-bit Intel CPU. If you
<para>The primary target architecture of LFS is the 32-bit Intel CPU. If you
have not built an LFS system before, you should probably start with that
target. The 32-bit architecture is the most widely supported Linux system and
target. The 32-bit architecture is the most widely supported Linux system and
is most compatible with both open source and proprietary software.</para>
<para>On the other hand, the instructions in this book are known to work, with
some modifications, with both Power PC and 64-bit AMD/Intel CPUs. To build a
system that utilizes these CPUs, the main prerequisite in addition to those on
the next few pages, is an existing system such as an earlier LFS system,
Ubuntu, Red Hat/Fedora, SuSE, or other distribution that targets the system
that you have. Also note that a 32-bit system can be installed and used as a
host system on a 64-bit AMD/Intel system.</para>
some modifications, with both Power PC and 64-bit AMD/Intel CPUs. To build a
system that utilizes one of these CPUs, the main prerequisite, in addition to
those on the next few pages, is an existing Linux system such as an earlier LFS
installation, Ubuntu, Red Hat/Fedora, SuSE, or other distribution that targets
the architecture that you have. Also note that a 32-bit distribution can be
installed and used as a host system on a 64-bit AMD/Intel computer.</para>
<para>Some other facts about a 64-bit systems need to be added here. When
<para>Some other facts about a 64-bit systems need to be added here. When
compared to a 32-bit system, the sizes of executable programs are slightly
larger and the execution speeds are only slightly faster. For example, in a
larger and the execution speeds are only slightly faster. For example, in a
test build of LFS-6.5 on a Core2Duo CPU based system, the following statistics
were measured:</para>
@ -39,16 +39,16 @@ minimal. Of course, if you have more than 4GB of RAM or want to manipulate
data that exceeds 4GB, the advantages of a 64-bit system are substantial.</para>
<para>The default 64-bit build that results from LFS is considered a "pure"
64-bit system. That is, it supports 64-bit executables only. Building a
"multi-lib" system requires building many applications twice, once for a 32-bit
system and once for a 64-bit system. Currently this is not directly supported
in the book, but is under consideration for a future release. In the meantime,
64-bit system. That is, it supports 64-bit executables only. Building a
"multi-lib" system requires compiling many applications twice, once for a 32-bit
system and once for a 64-bit system. Currently this is not directly supported
in the book, but is under consideration for a future release. In the meantime,
you can refer to the <ulink url="http://trac.cross-lfs.org/">Cross Linux From
Scratch</ulink> project for this advanced topic.</para>
<para>There is one last comment about 64-bit systems. There are some packages
<para>There is one last comment about 64-bit systems. There are some packages
that cannot currently be built in a "pure" 64-bit system or require specialized
build instructions. Generally, these packages have some embedded 32-bit
build instructions. Generally, these packages have some embedded 32-bit
specific assembly language instructions that fail when building on a 64-bit
system. Examples include the <ulink
url="http://www.linuxfromscratch.org/blfs/view/svn/">Beyond Linux From Scratch

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<listitem>
<para><ulink url="http://www.unix.org/single_unix_specification">The
Single UNIX Specification Version 3 (POSIX)</ulink>. Note:
Free registratration is required.</para>
Free registration is required.</para>
</listitem>
<listitem>
<para><ulink url="http://www.pathname.com/fhs/pub/fhs-2.3.html">Filesystem
@ -49,7 +49,7 @@
<para>Creating a complete LFS system capable of passing the LSB
certifications tests is possible, but not without many additional packages
that are beyond the scope of LFS. Most of these additional packages have
intallation instructions in BLFS. </para>
installation instructions in BLFS. </para>
<variablelist>
<bridgehead renderas="sect3">Packages supplied by LFS needed to

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<para>As stated earlier, the goal of LFS is to build a complete and usable
foundation-level system. This includes all packages needed to replicate
itself while providing a relativly minimal base from which to customize
itself while providing a relatively minimal base from which to customize
a more complete system based on the choices of the user. This does not
mean that LFS is the smallest system possible. Several important packages
are included that are not strictly required. The lists below document the
@ -50,14 +50,14 @@
<para>Binutils</para>
<para>This package package contains a linker, an assembler, and other
tools for handling object files. </para>
tools for handling object files.</para>
</listitem>
<listitem>
<para>Bison</para>
<para>This package contains the GNU version of yacc (Yet Another
Compiler Compiler) needed to build several other LFS programs.
Compiler Compiler) needed to build several other LFS programs.
</para>
</listitem>
@ -102,7 +102,7 @@
<para>E2fsprogs</para>
<para>This package contains the utilities for handling the ext2, ext3
and ext4 file systems. These are the most common and thouroughly
and ext4 file systems. These are the most common and thoroughly
tested file systems that Linux supports.</para>
</listitem>
@ -239,7 +239,7 @@
<para>Less</para>
<para>This package contains a very nice text file viewer that
allows scolling up or down when viewing a file.
allows scrolling up or down when viewing a file.
</para>
</listitem>
@ -329,7 +329,7 @@
<para>Perl</para>
<para>This package is an interpreter for the runtime language
PERL. </para>
PERL.</para>
</listitem>
<listitem>
@ -436,8 +436,8 @@
<listitem>
<para>Vim</para>
<para>This package an editor. It was chosen because its compatibility
with the classic vi editor and its huge number of powerful
<para>This package contains an editor. It was chosen because of its
compatibility with the classic vi editor and its huge number of powerful
capabilities. An editor is a very personal choice for
many users and any other editor could be substituted if desired.
</para>