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/systemd-&systemd-version;.tar.xz">
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8 | <!ENTITY systemd-download-ftp " ">
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9 | <!ENTITY systemd-md5sum "eac4f9fc5bd18a0efc3fc20858baacf3">
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10 | <!ENTITY systemd-size "2.7 MB">
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11 | <!ENTITY systemd-buildsize "23 MB">
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12 | <!ENTITY systemd-time "0.3 SBU">
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13 | ]>
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14 |
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15 | <sect1 id="systemd" xreflabel="systemd">
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16 | <?dbhtml filename="systemd.html"?>
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17 |
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18 | <sect1info>
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19 | <othername>$LastChangedBy$</othername>
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20 | <date>$Date$</date>
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21 | </sect1info>
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22 |
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23 | <title>Systemd-&systemd-version;</title>
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24 |
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25 | <indexterm zone="systemd">
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26 | <primary sortas="a-systemd"></primary>
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27 | </indexterm>
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28 |
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29 | <sect2 role="package">
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30 | <title>Introduction to Systemd</title>
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31 |
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32 | <para>This part contains instructions on how to build systemd package with
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33 | more features and why some features are required.
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34 | </para>
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35 |
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36 | &lfs75_checked;
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37 |
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38 | <bridgehead renderas="sect3">Package Information</bridgehead>
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39 |
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40 |
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41 | <warning>
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42 | <para>
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43 | It is important that you use the _same_ version of systemd as it was used in LFS build.
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44 | </para>
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45 | </warning>
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46 |
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47 |
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48 | <itemizedlist spacing="compact">
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49 | <listitem>
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50 | <para>Download (HTTP): <ulink url="&systemd-download-http;"/></para>
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51 | </listitem>
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52 | <listitem>
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53 | <para>Download (FTP): <ulink url="&systemd-download-ftp;"/></para>
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54 | </listitem>
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55 | <listitem>
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56 | <para>Download MD5 sum: &systemd-md5sum;</para>
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57 | </listitem>
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58 | <listitem>
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59 | <para>Download size: &systemd-size;</para>
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60 | </listitem>
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61 | <listitem>
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62 | <para>Estimated disk space required: &systemd-buildsize;</para>
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63 | </listitem>
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64 | <listitem>
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65 | <para>Estimated build time: &systemd-time;</para>
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66 | </listitem>
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67 | </itemizedlist>
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68 |
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69 |
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70 | <bridgehead renderas="sect3">Systemd Dependencies</bridgehead>
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71 |
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72 | <bridgehead renderas="sect4">Required</bridgehead>
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73 | <para role="required">
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74 | <xref linkend="glib2"/>,
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75 | <xref linkend="gobject-introspection"/>, and
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76 | <xref linkend="linux-pam"/>
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77 | </para>
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78 |
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79 | <bridgehead renderas="sect4">Optional Dependencies</bridgehead>
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80 | <para role="optional">
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81 | <xref linkend="libgcrypt"/> (see note below)
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82 | </para>
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83 |
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84 | <bridgehead renderas="sect4">Optional for rebuilding manual pages</bridgehead>
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85 | <para role="optional">
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86 | <xref linkend="libxslt"/>,
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87 | <xref linkend="DocBook"/>,
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88 | <xref linkend="docbook-xsl"/>, and
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89 | <xref linkend="gtk-doc"/> (for rebuilding UDev API docs)
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90 | </para>
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91 |
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92 | <bridgehead renderas="sect4">Optional Runtime Dependencies</bridgehead>
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93 | <para role="optional">
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94 | <xref linkend="pciutils"/> and
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95 | <xref linkend="usbutils"/>
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96 | </para>
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97 |
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98 | <note>
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99 | <para>
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100 | Having the first two packages at build time results in:
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101 |
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102 | libgudev-1.0.so in /usr/lib, /usr/include/gudev-1.0 directory, GUdev-1.0.
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103 | {typelib,gir} GObject-Introspection bindings in /usr/lib/girepository-1.0
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104 | and /usr/share/gir-1.0 respectively.
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105 |
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106 | Since GLib2 has a dependency on Python, systemd Python bindings were also installed in:
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107 |
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108 | /usr/lib/python2.7/site-packages/systemd
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109 |
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110 | Having the Linux-PAM package at build time results in:
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111 |
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112 | pam_systemd.so in /lib/security, a PAM module used to register logins/logouts with systemd-logind component.
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113 |
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114 | This is required by anything that now requires ConsoleKit (desktops, mostly), as well as some other software.
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115 | </para>
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116 | </note>
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117 |
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118 | <para condition="html" role="usernotes">User Notes:
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119 | <ulink url="&blfs-wiki;/systemd"/></para>
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120 |
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121 | </sect2>
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122 |
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123 | <sect2 role="installation">
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124 |
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125 | <title>Installation of Systemd</title>
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126 |
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127 | <para>First, re-build systemd:</para>
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128 |
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129 | <screen><userinput>
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130 |
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131 | sed -i "s:blkid/::" $(grep -rl "blkid/blkid.h") &&
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132 | patch -Np1 -i ../systemd-&systemd-version;-compat-patch; &&
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133 |
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134 | ./configure --prefix=/usr \
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135 | --sysconfdir=/etc \
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136 | --localstatedir=/var \
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137 | --with-rootprefix= \
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138 | --with-rootlibdir=/lib \
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139 | --enable-split-usr \
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140 | --docdir=/usr/share/doc/systemd-&systemd-version; &&
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141 |
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142 | make</userinput></screen>
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143 |
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144 | <para>First prevent a few broken test cases from being run:</para>
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145 |
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146 | <screen><userinput>
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147 |
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148 | sed -i s:test/udev-test.pl::g Makefile</userinput></screen>
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149 |
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150 | <note>
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151 | <para>For full test coverage, the test suite should be run
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152 | from a system booted using systemd.
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153 | </para>
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154 | </note>
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155 |
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156 | <para>To test the results, issue: <command>make -k check</command>.</para>
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157 |
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158 | <warning>
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159 | <para>Installing the package will override all systemd components installed in LFS,
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160 | so it is advised that the re-installation is done in a rescue mode with no programs except basic
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161 | systemd ones running. To enter rescue mode with systemd, issue this as the <systemitem class="username">root</systemitem>
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162 | from a VT console:
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163 | </para>
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164 | </warning>
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165 |
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166 | <screen role="root">
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167 |
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168 | <userinput>systemctl start rescue.target</userinput></screen>
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169 |
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170 | <para>Now re-install as the <systemitem class="username">root</systemitem>
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171 | user:</para>
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172 |
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173 | <screen role="root">
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174 |
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175 | <userinput>make install</userinput></screen>
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176 |
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177 | <para>Move NSS myhostname library to <filename class="directory">/lib</filename>
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178 | as the <systemitem class="username">root</systemitem> user:</para>
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179 |
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180 | <screen role="root">
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181 |
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182 | <userinput>mv -v /usr/lib/libnss_myhostname.so.2 /lib</userinput></screen>
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183 |
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184 | <para>Remove an unnecessary directory as the as the <systemitem class="username">root</systemitem> user:</para>
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185 |
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186 | <screen role="root">
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187 |
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188 | <userinput>rm -rfv /usr/lib/rpm</userinput></screen>
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189 |
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190 | <para>Remove a reference to a non-existent group as the <systemitem class="username">root</systemitem> user:</para>
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191 |
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192 | <screen role="root">
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193 |
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194 | <userinput>sed -i "s:0775 root lock:0755 root root:g" /usr/lib/tmpfiles.d/legacy.conf</userinput></screen>
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195 |
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196 | <note>
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197 | <para> If libxslt was present, the man pages were also installed by make install.
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198 | If not, the old man pages will remain and there's no need to reinstall
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199 | them since the same version of systemd was used. The same goes for the sysv compatibility links.
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200 | </para>
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201 | </note>
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202 |
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203 | <warning>
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204 | <para>WARNING do NOT run the systemd-machine-id-setup command again,
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205 | UUID was generated once and as its name says,
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206 | it should be unique. Generating a new one might result in broken logs from
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207 | journald and who knows what else.
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208 | </para>
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209 | </warning>
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210 |
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211 | <note>
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212 | <para>If libgcrypt was present at build time, make sure you move both libgpg-error and
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213 | libgcrypt versioned libraries to /lib so that they are
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214 | available in case of separate /usr by
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215 | issuing the following commands as the <systemitem class="username">root</systemitem>
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216 | user:
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217 |
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218 | <screen role="root"><userinput>
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219 |
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220 | mv -v /usr/lib/libgcrypt.so.* /usr/lib/libgpg-error.so.* /lib &&
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221 | ln -sfv ../../lib/$(readlink /usr/lib/libgcrypt.so) /usr/lib/libgcrypt.so &&
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222 | ln -sfv ../../lib/$(readlink /usr/lib/libgpg-error.so) /usr/lib/libgpg-error.so</userinput></screen></para></note>
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223 |
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224 | <para>If the pam_systemd.so PAM module was built, the system-sesion
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225 | PAM file needs to be modified and a new file needs to be created in order
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226 | for systemd-logind to work correctly. Create the configuration file by
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227 | issuing the following commands as the <systemitem class="username">root</systemitem>
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228 | user:
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229 | </para>
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230 |
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231 | <screen role="root"><userinput>
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232 |
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233 | cat > /etc/pam.d/system-session << "EOF"
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234 | # Begin Systemd addition
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235 |
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236 | session optional pam_loginuid.so
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237 | session optional pam_systemd.so
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238 | # End Systemd addition
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239 | EOF &&
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240 |
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241 | cat > /etc/pam.d/systemd-user << "EOF"
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242 | # Begin /etc/pam.d/systemd-user
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243 |
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244 | account required pam_access.so
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245 | account include system-account
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246 |
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247 | session required pam_env.so
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248 | session required pam_limits.so
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249 | session include system-session
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250 |
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251 | auth required pam_deny.so
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252 | password required pam_deny.so
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253 |
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254 | # End /etc/pam.d/systemd-user
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255 | EOF</userinput></screen>
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256 |
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257 | <para>At this point it would be a nice idea to reboot, or rather restart the
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258 | systemd components in case of new dependencies as the <systemitem class="username">root</systemitem>
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259 | user:</para>
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260 |
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261 | <screen role="root">
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262 |
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263 | <userinput>systemctl daemon-reexec &&
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264 | systemctl restart systemd-logind systemd-journald systemd-udevd</userinput></screen>
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265 |
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266 | </sect2>
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267 |
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268 | <sect2 role="commands">
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269 | <title>Command Explanations</title>
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270 |
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271 | <para>
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272 | <parameter>--with-root*</parameter>: These switches ensure that core programs and
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273 | shared libraries are installed in the subdirectories
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274 | of the root partition.
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275 | </para>
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276 |
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277 | <para>
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278 | <parameter>--enable-split-usr</parameter>: This switch ensures that systemd will work on
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279 | systems where /bin, /lib and /sbin directories are not
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280 | symlinks to their /usr counterparts.
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281 | </para>
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282 |
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283 | </sect2>
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284 |
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285 | <sect2 role="content">
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286 | <title>Contents</title>
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287 |
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288 | <para>
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289 | A list of the installed files, along with their short descriptions can be
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290 | found at <ulink url="http://www.linuxfromscratch.org/lfs/view/&lfs-version;/chapter06/systemd.html#contents-systemd"/>.
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291 | </para>
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292 | </sect2>
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293 |
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294 | </sect1>
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