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git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@3435 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
246 lines
7.0 KiB
XML
246 lines
7.0 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../general.ent">
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%general-entities;
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]>
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<chapter id="chapter-building-system" xreflabel="Chapter 6">
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<?dbhtml dir="chapter06"?>
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<title>Installing basic system software</title>
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<?dbhtml filename="chapter06.html"?>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="introduction.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="proc.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="chroot.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="changingowner.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="creatingdirs.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="createfiles.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="pwdgroup.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="makedev.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="kernel-headers.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="man-pages.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="glibc.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="readjusting.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="binutils.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="gcc.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="coreutils.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="zlib.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="mktemp.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="iana-etc.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="findutils.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="gawk.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="ncurses.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="vim.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="m4.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="bison.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="less.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="groff.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="sed.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="flex.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="gettext.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="net-tools.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="inetutils.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="perl.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="texinfo.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="autoconf.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="automake.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="bash.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="file.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="libtool.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="bzip2.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="diffutils.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="ed.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="kbd.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="e2fsprogs.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="grep.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="grub.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="gzip.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="man.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="make.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="modutils.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="patch.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="procinfo.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="procps.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="psmisc.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="shadow.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="sysklogd.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="sysvinit.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="tar.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="util-linux.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="gcc-2953.xml"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="aboutdebug.xml"/>
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<sect1 id="ch-system-strippingagain">
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<title>Stripping again</title>
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<?dbhtml filename="strippingagain.html"?>
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<para>If you are not a programmer and don't plan to do any debugging on your
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system software, you can shrink your system by about 200 MB by removing the
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debugging symbols from binaries and libraries. This causes no inconvenience
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other than not being able to debug the software fully any more.</para>
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<para>Most people who use the command mentioned below don't experience any
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problems. But it is easy to make a typo and render your new system unusable, so
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before running the strip command it is probably a good idea to make a backup of
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the current situation.</para>
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<para>If you are going to perform the stripping, special care is needed to
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ensure you're not running any of the binaries that are about to be stripped.
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If you're not sure whether you entered chroot with the command given in
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<xref linkend="ch-system-chroot"/>, then first exit from chroot:</para>
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<screen><userinput>logout</userinput></screen>
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<para>Then reenter it with:</para>
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<screen><userinput>chroot $LFS /tools/bin/env -i \
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HOME=/root TERM=$TERM PS1='\u:\w\$ ' \
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PATH=/bin:/usr/bin:/sbin:/usr/sbin \
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/tools/bin/bash --login</userinput></screen>
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<para>Now you can safely strip the binaries and libraries:</para>
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<screen><userinput>/tools/bin/find /{,usr/}{bin,lib,sbin} -type f \
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-exec /tools/bin/strip --strip-debug '{}' ';'</userinput></screen>
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<para>A large number of files will be reported as having their file format not
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recognized. These warnings can be safely ignored, they just mean that those
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files are scripts instead of binaries, no harm is done.</para>
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<para>If you are really tight on disk space, you may want to use
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<emphasis>--strip-all</emphasis> on the binaries in
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<filename>/{,usr/}{bin,sbin}</filename> to gain several more megabytes. But do
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<emphasis>not</emphasis> use this option on libraries: they would be
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destroyed.</para>
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</sect1>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="revisedchroot.xml"/>
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</chapter>
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