source: BOOK/boot/common/creatingdirs.xml @ 0de816f8

Last change on this file since 0de816f8 was 0de816f8, checked in by Chris Staub <chris@…>, 13 years ago

Copied the modified 'creating dirs' section from CLFS 2.0 over to trunk

  • Property mode set to 100644
File size: 2.7 KB
1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
3  "" [
4  <!ENTITY % general-entities SYSTEM "../../general.ent">
5  %general-entities;
8<sect1 id="ch-boot-creatingdirs">
9  <?dbhtml filename="creatingdirs.html"?>
11  <title>Creating Directories</title>
13  <para os="a">It is time to create some structure in the LFS file system. Create a
14  standard directory tree by issuing the following commands:</para>
16<screen><userinput>mkdir -pv ${LFS}/{bin,boot,dev,etc/opt,home,lib,mnt,opt}
17mkdir -pv ${LFS}/{proc,media/{floppy,cdrom},sbin,srv,sys,var}
18install -dv -m 0750 ${LFS}/root
19install -dv -m 1777 ${LFS}{/var,}/tmp
20mkdir -pv ${LFS}/usr/{,local/}{bin,include,lib,sbin,src}
21mkdir -pv ${LFS}/usr/{,local/}share/{doc,info,locale,man}
22mkdir -v  ${LFS}/usr/{,local/}share/{misc,terminfo,zoneinfo}
23mkdir -pv ${LFS}/usr/{,local/}share/man/man{1..8}
24for dir in ${LFS}/usr{,/local}; do
25  ln -sv share/{man,doc,info} $dir
27mkdir -v ${LFS}/var/{lock,log,mail,run,spool}
28mkdir -pv ${LFS}/var/{opt,cache,lib/{misc,locate},local}</userinput></screen>
30  <para os="b">Directories are, by default, created with permission mode 755,
31  but this is not desirable for all directories. In the commands above,
32  two changes are made&mdash;one to the home directory of user
33  <systemitem class="username">root</systemitem>, and another to the
34  directories for temporary files.</para>
36  <para os="c">The first mode change ensures that not just anybody can enter
37  the <filename class="directory">${LFS}/root</filename> directory&mdash;the
38  same as a normal user would do with his or her home directory. The
39  second mode change makes sure that any user can write to the
40  <filename class="directory">${LFS}/tmp</filename> and
41  <filename class="directory">${LFS}/var/tmp</filename> directories, but
42  cannot remove another user's files from them. The latter is prohibited
43  by the so-called <quote>sticky bit,</quote> the highest bit (1) in the
44  1777 bit mask.</para>
46  <sect2 os="d">
47    <title>FHS Compliance Note</title>
49    <para>The directory tree is based on the Filesystem Hierarchy Standard
50    (FHS) (available at <ulink url=""/>). In
51    addition to the tree created above, this standard stipulates the
52    existence of <filename class="directory">/usr/local/games</filename>
53    and <filename class="directory">/usr/share/games</filename>. The FHS
54    is not precise as to the structure of the <filename
55    class="directory">/usr/local/share</filename> subdirectory, so we
56    create only the directories that are needed. However, feel free to
57    create these directories if you prefer to conform more strictly to
58    the FHS.</para>
60  </sect2>
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