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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY % general-entities SYSTEM "../general.ent">
%general-entities;
]>
<sect1 id="ch-tools-creatingminlayout">
<?dbhtml filename="creatingminlayout.html"?>
<title>Creating a limited directory layout in LFS filesystem</title>
<para>In this section, we begin populating the LFS filesystem with the
pieces that will constitute the final Linux system. The first step is to
create a limited directory hierarchy, so that the programs compiled in <xref
linkend="chapter-temporary-tools"/> (as well as glibc and libstdc++ in <xref
linkend="chapter-cross-tools"/>) can be installed in their final
location. We do this so those temporary programs will be overwritten when
the final versions are built in <xref linkend="chapter-building-system"/>.</para>
<para>Create the required directory layout by issuing the following commands as
<systemitem class="username">root</systemitem>:</para>
<screen><userinput>mkdir -pv $LFS/{etc,var} $LFS/usr/{bin,lib,sbin}
for i in bin lib sbin; do
ln -sv usr/$i $LFS/$i
done
case $(uname -m) in
x86_64) mkdir -pv $LFS/lib64 ;;
esac</userinput></screen>
<para>Programs in <xref linkend="chapter-temporary-tools"/> will be compiled
with a cross-compiler (more details can be found in section <xref
linkend="ch-tools-toolchaintechnotes"/>). This cross-compiler will be installed
in a special directory, to separate it from the other programs. Still acting as
&root;, create that directory with this command:</para>
<screen><userinput>mkdir -pv $LFS/tools</userinput></screen>
<note>
<para>
LFS editors have deliberately decided not to use a
<filename class="directory">/usr/lib64</filename> directory. Several
steps are taken so that the toolchain does not use it. If for any
reason this directory appears (either because you made an error in
following the instructions, or because you install a binary package that
creates it after finishing LFS), it may break the instructions given in
the book. You should often ensure that this directory is non-existent.
</para>
</note>
</sect1>
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