[d1ea8a45] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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| 7 | <!ENTITY systemd-download-http "http://www.freedesktop.org/software/systemd/">
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| 8 | <!ENTITY systemd-patch-download-http "http://www.linuxfromscratch.org/patches/downloads/systemd/">
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| 9 | ]>
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| 10 |
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| 11 | <sect1 id="systemd" xreflabel="Systemd">
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| 12 | <?dbhtml filename="systemd.html"?>
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| 13 |
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| 14 | <sect1info>
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| 15 | <othername>$LastChangedBy$</othername>
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| 16 | <date>$Date$</date>
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| 17 | </sect1info>
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| 18 |
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| 19 | <title>Systemd</title>
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| 20 |
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| 21 | <indexterm zone="systemd">
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| 22 | <primary sortas="a-systemd">systemd</primary>
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| 23 | </indexterm>
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| 24 |
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| 25 | <sect2 role="package">
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| 26 | <title>Introduction to systemd</title>
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| 27 |
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| 28 | <para>
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| 29 | Even though <application>systemd</application> was built in
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| 30 | LFS, there are some features provided by the package that
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| 31 | some BLFS packages need, but their dependencies didn't fit
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| 32 | into LFS.
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| 33 | </para>
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| 34 |
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| 35 | <para>
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| 36 | There are two reasons why <application>systemd</application>
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| 37 | needs to be rebuilt. Some packages require GUdev library to
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| 38 | be present in order to compile while others expect working
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| 39 | <command>systemd-logind</command> service in order to work
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| 40 | properly. To build the GUdev library, make sure that you have
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| 41 | installed first set of required dependencies. In order to get
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| 42 | <command>systemd-logind</command> to work properly, make sure
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| 43 | that you have installed second set of required dependencies.
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| 44 | </para>
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| 45 |
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| 46 | <para>
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| 47 | Unlike other packages in BLFS, there is no set version of
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| 48 | <application>systemd</application> in this page's title and
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| 49 | no set version specified for download. Version updates to
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| 50 | <application>systemd</application> make it possible that the
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| 51 | user's system may have a <application>systemd</application>
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| 52 | version different from the one in the current LFS book.
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| 53 | Therefore, users should use the version of
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| 54 | <application>systemd</application> that is currently
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| 55 | installed on their system.
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| 56 | </para>
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| 57 |
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| 58 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 59 | <itemizedlist spacing="compact">
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| 60 | <listitem>
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| 61 | <para>Systemd Download (HTTP): <ulink url="&systemd-download-http;"/></para>
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| 62 | </listitem>
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| 63 | <listitem>
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| 64 | <para>Systemd Patch Download (HTTP): <ulink url="&systemd-patch-download-http;"/></para>
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| 65 | </listitem>
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| 66 | </itemizedlist>
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| 67 |
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| 68 | <para>
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| 69 | Make sure you download the "compat" patch whose version matches
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| 70 | the <application>systemd</application> version you are building.
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| 71 | </para>
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| 72 |
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| 73 | <note>
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| 74 | <para>
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| 75 | If you are unsure which version needs to be downloaded, issue
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| 76 | <command>systemctl --version</command> in order to find out.
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| 77 | Some of the commands below might need the version information.
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| 78 | Issue the following command to store the
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| 79 | <application>systemd</application> version number into an
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| 80 | environment variable:
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| 81 | </para>
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| 82 |
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| 83 | <screen><userinput>export SYSTEMD_VERSION=$(systemctl --version | head -n1 | awk '{print $2}')</userinput></screen>
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| 84 | </note>
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| 85 |
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| 86 | <bridgehead renderas="sect3">systemd Dependencies</bridgehead>
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| 87 |
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| 88 | <bridgehead renderas="sect4">Required (GUdev)</bridgehead>
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| 89 | <para role="required">
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| 90 | <xref linkend="glib2"/> and
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| 91 | <xref linkend="gobject-introspection"/>
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| 92 | </para>
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| 93 |
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| 94 | <bridgehead renderas="sect4">Required (Logind)</bridgehead>
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| 95 | <para role="required">
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| 96 | <xref linkend="linux-pam"/>
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| 97 | </para>
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| 98 |
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| 99 | <bridgehead renderas="sect4">Recommended Runtime Dependency</bridgehead>
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| 100 | <para role="recommended">
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| 101 | <xref linkend="polkit"/>
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| 102 | </para>
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| 103 |
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| 104 | <bridgehead renderas="sect4">Optional</bridgehead>
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| 105 | <para role="optional">
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| 106 | <xref linkend="curl"/>,
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| 107 | <xref linkend="elfutils"/>,
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| 108 | <xref linkend="gnutls"/>,
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| 109 | <xref linkend="gtk-doc"/>,
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| 110 | <xref linkend="libgcrypt"/>,
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| 111 | <xref linkend="python3"/>,
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| 112 | <ulink url="https://code.google.com/p/cryptsetup/">cryptsetup</ulink>,
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| 113 | <ulink url="https://www.gnu.org/software/libmicrohttpd/">libmicrohttpd</ulink>,
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| 114 | <ulink url="http://fukuchi.org/works/qrencode/">libqrencode</ulink>,
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| 115 | <ulink url="http://sourceforge.net/projects/libseccomp/">libseccomp</ulink>, and
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| 116 | <ulink url="http://lxml.de/">lxml</ulink> (Python Module)
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| 117 | </para>
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| 118 |
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| 119 | <note>
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| 120 | <para>
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| 121 | In order to build the <application>systemd</application>
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| 122 | <application>Python</application> module, lxml package
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| 123 | needs to be installed for the corresponding
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| 124 | <application>Python</application> version (2 or 3).
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| 125 | Note that <command>configure</command> defaults to
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| 126 | <application>Python 2</application>. In order to build
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| 127 | the module for <application>Python 3</application>,
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| 128 | make sure you pass the <envar>PYTHON=python3</envar>
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| 129 | environment variable to the <command>configure</command>
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| 130 | command below.
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| 131 | </para>
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| 132 | </note>
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| 133 |
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| 134 | <bridgehead renderas="sect4">Optional (for rebuilding manual pages)</bridgehead>
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| 135 | <para role="optional">
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| 136 | <xref linkend="libxslt"/>,
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| 137 | <xref linkend="DocBook"/>, and
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| 138 | <xref linkend="docbook-xsl"/>
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| 139 | </para>
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| 140 |
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| 141 | <para condition="html" role="usernotes">User Notes:
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| 142 | <ulink url="&blfs-wiki;/systemd"/>
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| 143 | </para>
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| 144 | </sect2>
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| 145 |
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| 146 | <sect2 role="installation">
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| 147 | <title>Installation of systemd</title>
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| 148 |
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| 149 | <para>
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| 150 | First, apply the required patch:
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| 151 | </para>
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| 152 |
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| 153 | <screen><userinput>patch -Np1 -i ../systemd-${SYSTEMD_VERSION}-compat-1.patch</userinput></screen>
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| 154 |
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| 155 | <para>
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| 156 | Rebuild <application>systemd</application> by running the
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| 157 | following commands:
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| 158 | </para>
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| 159 |
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| 160 | <screen><userinput>./configure --prefix=/usr \
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| 161 | --sysconfdir=/etc \
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| 162 | --localstatedir=/var \
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| 163 | --with-rootprefix= \
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| 164 | --with-rootlibdir=/lib \
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| 165 | --enable-split-usr \
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| 166 | --docdir=/usr/share/doc/systemd-${SYSTEMD_VERSION} &&
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| 167 | make</userinput></screen>
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| 168 |
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| 169 | <note>
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| 170 | <para>
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| 171 | For the best results, make sure you run the testsuite from
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| 172 | a system that is booted by the same
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| 173 | <application>systemd</application> version you are rebuilding.
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| 174 | </para>
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| 175 | </note>
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| 176 |
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| 177 | <para>
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| 178 | To test the results, issue: <command>make -k check</command>.
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| 179 | </para>
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| 180 |
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| 181 | <warning>
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| 182 | <para>
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| 183 | Installing the package will override all files installed by
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| 184 | <application>systemd</application> in LFS. It is critical that
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| 185 | nothing uses either <application>systemd</application> or
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| 186 | <application>Udev</application> libraries or programs during
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| 187 | the installation phrase. Best way to achieve that is to do the
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| 188 | installation in the rescue mode. To switch to the rescue mode,
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| 189 | issue the following command as the
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[c32ea611] | 190 | <systemitem class="username">root</systemitem> user from a TTY:
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[d1ea8a45] | 191 | </para>
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| 192 |
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| 193 | <screen role="root"><userinput>systemctl start rescue.target</userinput></screen>
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| 194 | </warning>
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| 195 |
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| 196 | <para>
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| 197 | Now, as the <systemitem class="username">root</systemitem>
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| 198 | user:</para>
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| 199 |
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| 200 | <screen role="root"><userinput>make install</userinput></screen>
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| 201 |
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| 202 | <para>
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| 203 | Move the NSS myhostname library to <filename
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| 204 | class="directory">/lib</filename> by running the
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| 205 | following command as the <systemitem
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| 206 | class="username">root</systemitem> user:
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| 207 | </para>
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| 208 |
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| 209 | <screen role="root"><userinput>mv -v /usr/lib/libnss_myhostname.so.2 /lib</userinput></screen>
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| 210 |
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| 211 | <para>
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| 212 | Remove an unnecessary directory by running the
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| 213 | following command as the <systemitem
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| 214 | class="username">root</systemitem> user:
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| 215 | </para>
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| 216 |
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| 217 | <screen role="root"><userinput>rm -rfv /usr/lib/rpm</userinput></screen>
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| 218 |
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| 219 | <para>
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| 220 | Remove a reference to a non-existent group by running
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| 221 | the following command as the <systemitem
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| 222 | class="username">root</systemitem> user:
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| 223 | </para>
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| 224 |
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| 225 | <screen role="root"><userinput>sed -i "s:0775 root lock:0755 root root:g" /usr/lib/tmpfiles.d/legacy.conf</userinput></screen>
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| 226 |
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| 227 | </sect2>
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| 228 |
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| 229 | <sect2 role="configuration">
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| 230 | <title>Configuring systemd</title>
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| 231 |
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| 232 | <para>
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| 233 | If the <application>systemd</application> PAM module was built,
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| 234 | the <filename>/etc/pam.d/system-sesion</filename> file needs to
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| 235 | be modified and a new file needs to be created in order for
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| 236 | <command>systemd-logind</command> to work correctly. To accomplish
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| 237 | that, run the following commands as the <systemitem
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| 238 | class="username">root</systemitem> user:
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| 239 | </para>
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| 240 |
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| 241 | <screen role="root"><userinput>cat >> /etc/pam.d/system-session << "EOF"
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| 242 | <literal># Begin Systemd addition
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| 243 |
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| 244 | session required pam_loginuid.so
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| 245 | -session optional pam_systemd.so
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| 246 |
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| 247 | # End Systemd addition</literal>
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| 248 | EOF
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| 249 |
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| 250 | cat > /etc/pam.d/systemd-user << "EOF"
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| 251 | <literal># Begin /etc/pam.d/systemd-user
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| 252 |
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| 253 | account required pam_access.so
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| 254 | account include system-account
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| 255 |
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| 256 | session required pam_env.so
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| 257 | session required pam_limits.so
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| 258 | session include system-session
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| 259 |
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| 260 | auth required pam_deny.so
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| 261 | password required pam_deny.so
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| 262 |
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| 263 | # End /etc/pam.d/systemd-user</literal>
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| 264 | EOF</userinput></screen>
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| 265 |
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| 266 | <para>
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| 267 | At this point it would be a nice idea to reboot to
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| 268 | test if the reinstallation was sucessful.
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| 269 | </para>
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| 270 |
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| 271 | </sect2>
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| 272 |
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| 273 | <sect2 role="content">
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| 274 | <title>Contents</title>
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| 275 |
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| 276 | <para>
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| 277 | A list of the installed files, along with their short
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| 278 | descriptions can be found at
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| 279 | <ulink url="http://www.linuxfromscratch.org/lfs/view/systemd/chapter06/systemd.html#contents-systemd"/>.
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| 280 | </para>
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| 281 |
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| 282 | <para>
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| 283 | Below are listed newly installed libraries and directories
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| 284 | along with short descriptions.
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| 285 | </para>
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| 286 |
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| 287 | <segmentedlist>
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| 288 | <segtitle>Installed Programs</segtitle>
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| 289 | <segtitle>Installed Libraries</segtitle>
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| 290 | <segtitle>Installed Directories</segtitle>
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| 291 |
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| 292 | <seglistitem>
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| 293 | <seg>
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| 294 | None
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| 295 | </seg>
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| 296 | <seg>
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| 297 | libgudev-1.0.so and pam_systemd.so
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| 298 | (in <filename class="directory">/lib/security</filename>)
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| 299 | </seg>
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| 300 | <seg>
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| 301 | /usr/include/gudev-1.0 and
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| 302 | /usr/share/gtk-doc/html/gudev
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| 303 | </seg>
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| 304 | </seglistitem>
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| 305 | </segmentedlist>
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| 306 |
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| 307 | <variablelist>
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| 308 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 309 | <?dbfo list-presentation="list"?>
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| 310 | <?dbhtml list-presentation="table"?>
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| 311 |
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| 312 | <varlistentry id="libgudev-1.0">
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| 313 | <term><filename class="libraryfile">libgudev-1.0.so</filename></term>
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| 314 | <listitem>
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| 315 | <para>
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| 316 | is a GObject-based wrapper library for libudev.
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| 317 | </para>
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| 318 | <indexterm zone="systemd libgudev-1.0">
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| 319 | <primary sortas="c-libgudev-1.0">libgudev-1.0.so</primary>
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| 320 | </indexterm>
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| 321 | </listitem>
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| 322 | </varlistentry>
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| 323 |
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| 324 | <varlistentry id="pam_systemd">
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| 325 | <term><filename class="libraryfile">pam_systemd.so</filename></term>
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| 326 | <listitem>
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| 327 | <para>
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| 328 | is a PAM module used to register user sessions with the
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| 329 | <application>systemd</application> login manager,
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| 330 | <command>systemd-logind</command>.
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| 331 | </para>
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| 332 | <indexterm zone="systemd pam_systemd">
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| 333 | <primary sortas="c-pam_systemd">pam_systemd.so</primary>
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| 334 | </indexterm>
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| 335 | </listitem>
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| 336 | </varlistentry>
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| 337 |
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| 338 | </variablelist>
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| 339 |
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| 340 | </sect2>
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| 341 |
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| 342 | </sect1>
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