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authorBruce Dubbs <bdubbs@linuxfromscratch.org>2020-06-16 11:56:28 +0000
committerBruce Dubbs <bdubbs@linuxfromscratch.org>2020-06-16 11:56:28 +0000
commit675606bde2ba53946537b42a5aa576692a311621 (patch)
treeaf20c20ce3841c16b24d0b9903af6878a4a0f5a6 /chapter06/creatingdirs.xml
parent560065f976e371779928dbf8b9428217f3f57331 (diff)
parent1cd59612d00603c9ce773ad821a15d20bc4fa0b7 (diff)
Split Chapter 5 into three separate chapters.
Implement a new method of cross-building the LFS tool chain and other tools to simplify the method of isolating the new system from the original host. This will be the start of LFS-10.0. Move old trunk/BOOK to branches/old-trunk. git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11946 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
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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-system-creatingdirs">
- <?dbhtml filename="creatingdirs.html"?>
-
- <title>Creating Directories</title>
-
- <para>It is time to create some structure in the LFS file system. Create a
- standard directory tree by issuing the following commands:</para>
-
-<screen><userinput>mkdir -pv /{bin,boot,etc/{opt,sysconfig},home,lib/firmware,mnt,opt}
-mkdir -pv /{media/{floppy,cdrom},sbin,srv,var}
-install -dv -m 0750 /root
-install -dv -m 1777 /tmp /var/tmp
-mkdir -pv /usr/{,local/}{bin,include,lib,sbin,src}
-mkdir -pv /usr/{,local/}share/{color,dict,doc,info,locale,man}
-mkdir -v /usr/{,local/}share/{misc,terminfo,zoneinfo}
-mkdir -v /usr/libexec
-mkdir -pv /usr/{,local/}share/man/man{1..8}
-mkdir -v /usr/lib/pkgconfig
-
-case $(uname -m) in
- x86_64) mkdir -v /lib64 ;;
-esac
-
-mkdir -v /var/{log,mail,spool}
-ln -sv /run /var/run
-ln -sv /run/lock /var/lock
-mkdir -pv /var/{opt,cache,lib/{color,misc,locate},local}</userinput></screen>
-
- <para>Directories are, by default, created with permission mode 755, but
- this is not desirable for all directories. In the commands above, two
- changes are made&mdash;one to the home directory of user <systemitem
- class="username">root</systemitem>, and another to the directories for
- temporary files.</para>
-
- <para>The first mode change ensures that not just anybody can enter
- the <filename class="directory">/root</filename> directory&mdash;the
- same as a normal user would do with his or her home directory. The
- second mode change makes sure that any user can write to the
- <filename class="directory">/tmp</filename> and <filename
- class="directory">/var/tmp</filename> directories, but cannot remove
- another user's files from them. The latter is prohibited by the so-called
- <quote>sticky bit,</quote> the highest bit (1) in the 1777 bit mask.</para>
-
- <sect2>
- <title>FHS Compliance Note</title>
-
- <para>The directory tree is based on the Filesystem Hierarchy Standard
- (FHS) (available at <ulink
- url="https://refspecs.linuxfoundation.org/fhs.shtml"/>). The FHS also specifies
- the optional existence of some directories such as <filename
- class="directory">/usr/local/games</filename> and <filename
- class="directory">/usr/share/games</filename>. We create only the
- directories that are needed. However, feel free to create these
- directories. </para>
-
- </sect2>
-
-</sect1>