source: chapter04/creatingminlayout.xml@ 4d2f293

xry111/usr-move
Last change on this file since 4d2f293 was 4d2f293, checked in by Xi Ruoyao <xry111@…>, 8 months ago

usr-move: show the note for ln -s at the first occurence of it

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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../general.ent">
5 %general-entities;
6]>
7
8<sect1 id="ch-tools-creatingminlayout">
9 <?dbhtml filename="creatingminlayout.html"?>
10
11 <title>Creating a limited directory layout in LFS filesystem</title>
12
13 <para>The first task performed in the LFS partition is to create a limited
14 directory hierarchy so that programs compiled in <xref
15 linkend="chapter-temporary-tools"/> (as well as glibc and libstdc++ in <xref
16 linkend="chapter-cross-tools"/>) may be installed in their final
17 location. This is needed so that those temporary programs be overwritten
18 when rebuilding them in <xref linkend="chapter-building-system"/>.</para>
19
20 <para>Create the required directory layout by running the following as
21 <systemitem class="username">root</systemitem>:</para>
22
23<screen revision="sysv"><userinput>mkdir -pv $LFS/{etc,var} $LFS{/usr,}/{bin,lib,sbin}
24
25case $(uname -m) in
26 x86_64) mkdir -pv $LFS/lib64 ;;
27esac</userinput></screen>
28
29<screen revision="systemd"><userinput>mkdir -pv $LFS/{etc,var} $LFS/usr/{bin,lib,sbin}
30
31for i in bin lib sbin; do
32 ln -sv usr/$i $LFS/$i
33done
34
35if [ $(uname -m) = x86_64 ]; then
36 mkdir -pv $LFS/usr/lib64
37 ln -sv usr/lib64 $LFS/lib64
38fi</userinput></screen>
39
40 <note revision="systemd">
41 <para>
42 The above command is correct. The <command>ln</command> command has
43 a few syntactic versions, so be sure to check
44 <command>info coreutils ln</command> and <filename>ln(1)</filename>
45 before reporting what you may think is an error.
46 </para>
47 </note>
48
49 <para>Programs in <xref linkend="chapter-temporary-tools"/> will be compiled
50 with a cross-compiler (more details in section <xref
51 linkend="ch-tools-toolchaintechnotes"/>). In order to separate this
52 cross-compiler from the other programs, it will be installed in a special
53 directory. Create this directory with:</para>
54
55<screen><userinput>mkdir -pv $LFS/tools</userinput></screen>
56
57</sect1>
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