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68b56a3c33
The host distro may have an insane default for root_owner and/or root_perms in /etc/mke2fs.conf, so let's make it sane on our own. Note that MKE2FS_CONFIG=/dev/null makes mke2fs refuse to run so we cannot suppress the host mke2fs.conf.
64 lines
2.6 KiB
XML
64 lines
2.6 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/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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<sect1 id="ch-tools-creatingminlayout">
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<?dbhtml filename="creatingminlayout.html"?>
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<title>Creating a Limited Directory Layout in the LFS Filesystem</title>
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<para>In this section, we begin populating the LFS filesystem with the
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pieces that will constitute the final Linux system. The first step is to
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create a limited directory hierarchy, so that the programs compiled in <xref
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linkend="chapter-temporary-tools"/> (as well as glibc and libstdc++ in <xref
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linkend="chapter-cross-tools"/>) can be installed in their final
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location. We do this so those temporary programs will be overwritten when
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the final versions are built in <xref linkend="chapter-building-system"/>.</para>
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<para>At first, set the owner and permission mode of the
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<filename class='directory'>$LFS</filename> directory (i.e. the root
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directory in the newly created file system for the LFS system) to
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&root; and <literal>755</literal> in case the host distro has been
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configured to use a different default for <command>mkfs</command>:</para>
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<screen><userinput>chown root:root $LFS
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chmod 755 $LFS</userinput></screen>
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<para>Create the required directory layout by issuing the following commands as
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<systemitem class="username">root</systemitem>:</para>
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<screen><userinput>mkdir -pv $LFS/{etc,var} $LFS/usr/{bin,lib,sbin}
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for i in bin lib sbin; do
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ln -sv usr/$i $LFS/$i
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done
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case $(uname -m) in
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x86_64) mkdir -pv $LFS/lib64 ;;
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esac</userinput></screen>
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<para>Programs in <xref linkend="chapter-temporary-tools"/> will be compiled
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with a cross-compiler (more details can be found in section <xref
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linkend="ch-tools-toolchaintechnotes"/>). This cross-compiler will be installed
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in a special directory, to separate it from the other programs. Still acting as
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&root;, create that directory with this command:</para>
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<screen><userinput>mkdir -pv $LFS/tools</userinput></screen>
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<note>
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<para>
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The LFS editors have deliberately decided not to use a
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<filename class="directory">/usr/lib64</filename> directory. Several
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steps are taken to be sure the toolchain will not use it. If for any
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reason this directory appears (either because you made an error in
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following the instructions, or because you installed a binary package that
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created it after finishing LFS), it may break your system.
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You should always be sure this directory does not exist.
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</para>
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</note>
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</sect1>
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