[f896e21c] | 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 |
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[35a5259] | 8 | <sect1 id="ch-system-systemd" role="wrap" revision="systemd">
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[cba2d4e] | 9 | <?dbhtml filename="systemd.html"?>
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[f896e21c] | 10 |
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| 11 | <sect1info condition="script">
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[cba2d4e] | 12 | <productname>systemd</productname>
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[f896e21c] | 13 | <productnumber>&systemd-version;</productnumber>
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| 14 | <address>&systemd-url;</address>
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| 15 | </sect1info>
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| 16 |
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[cba2d4e] | 17 | <title>Systemd-&systemd-version;</title>
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[f896e21c] | 18 |
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[cba2d4e] | 19 | <indexterm zone="ch-system-systemd">
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[1118b17] | 20 | <primary sortas="a-systemd">systemd</primary>
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[f896e21c] | 21 | </indexterm>
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| 22 |
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| 23 | <sect2 role="package">
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| 24 | <title/>
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| 25 |
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[1118b17] | 26 | <para>The systemd package contains programs for controlling the startup,
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[cba2d4e] | 27 | running, and shutdown of the system.</para>
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[f896e21c] | 28 |
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| 29 | <segmentedlist>
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| 30 | <segtitle>&buildtime;</segtitle>
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| 31 | <segtitle>&diskspace;</segtitle>
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| 32 |
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| 33 | <seglistitem>
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[6dfcfecc] | 34 | <seg>&systemd-fin-sbu;</seg>
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| 35 | <seg>&systemd-fin-du;</seg>
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[f896e21c] | 36 | </seglistitem>
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| 37 | </segmentedlist>
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| 38 | </sect2>
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| 39 |
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| 40 | <sect2 role="installation">
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[1118b17] | 41 | <title>Installation of systemd</title>
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[bc375da6] | 42 |
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[e193e357] | 43 |
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| 44 | <para>First, fix a security issue in systemd-coredump:</para>
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[1b11115] | 45 |
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| 46 | <screen><userinput remap="pre">patch -Np1 -i ../&systemd-upstream-patch;</userinput></screen>
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[e193e357] | 47 |
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[1b11115] | 48 |
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[87119fd] | 49 | <para>Remove two unneeded groups,
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| 50 | <systemitem class="groupname">render</systemitem> and
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| 51 | <systemitem class="groupname">sgx</systemitem>, from the default udev
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[896e77e] | 52 | rules:</para>
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| 53 |
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[1f201845] | 54 | <screen><userinput remap="pre">sed -i -e 's/GROUP="render"/GROUP="video"/' \
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[96fa6f2] | 55 | -e 's/GROUP="sgx", //' rules.d/50-udev-default.rules.in</userinput></screen>
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[896e77e] | 56 |
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[1118b17] | 57 | <para>Prepare systemd for compilation:</para>
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| 58 |
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[be00729f] | 59 | <screen><userinput remap="configure">mkdir -p build
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[04b2165] | 60 | cd build
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[fc199db] | 61 |
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[95906db] | 62 | meson --prefix=/usr \
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[06cdaed] | 63 | --buildtype=release \
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[95906db] | 64 | -Ddefault-dnssec=no \
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| 65 | -Dfirstboot=false \
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| 66 | -Dinstall-tests=false \
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| 67 | -Dldconfig=false \
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| 68 | -Dsysusers=false \
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| 69 | -Drpmmacrosdir=no \
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| 70 | -Dhomed=false \
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| 71 | -Duserdb=false \
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[ceebda5] | 72 | -Dman=false \
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[38de42d] | 73 | -Dmode=release \
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[77e340bc] | 74 | -Dpamconfdir=no \
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[d7e0db5] | 75 | -Ddocdir=/usr/share/doc/systemd-&systemd-version; \
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[fc199db] | 76 | ..</userinput></screen>
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[cba2d4e] | 77 |
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| 78 | <variablelist>
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[81ed05f] | 79 | <title>The meaning of the meson options:</title>
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[cba2d4e] | 80 |
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[06cdaed] | 81 | <varlistentry>
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| 82 | <term><parameter>--buildtype=release</parameter></term>
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| 83 | <listitem>
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| 84 | <para>This switch overrides the default buildtype
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[69854d2a] | 85 | (<quote>debug</quote>), which produces unoptimized
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[06cdaed] | 86 | binaries.</para>
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| 87 | </listitem>
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| 88 | </varlistentry>
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| 89 |
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[cba2d4e] | 90 | <varlistentry>
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[81ed05f] | 91 | <term><parameter>-Ddefault-dnssec=no</parameter></term>
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[cba2d4e] | 92 | <listitem>
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[81ed05f] | 93 | <para>This switch turns off the experimental DNSSEC support.</para>
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[cba2d4e] | 94 | </listitem>
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| 95 | </varlistentry>
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| 96 |
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| 97 | <varlistentry>
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[81ed05f] | 98 | <term><parameter>-Dfirstboot=false</parameter></term>
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[cba2d4e] | 99 | <listitem>
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[81ed05f] | 100 | <para>This switch prevents installation of systemd
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| 101 | services responsible for setting up the system for
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[69854d2a] | 102 | the first time. These are not useful in LFS, because
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[81ed05f] | 103 | everything is done manually.</para>
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[cba2d4e] | 104 | </listitem>
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| 105 | </varlistentry>
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| 106 |
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[e88a471b] | 107 | <varlistentry>
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| 108 | <term><parameter>-Dinstall-tests=false</parameter></term>
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| 109 | <listitem>
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| 110 | <para>This switch prevents installation of the compiled tests.</para>
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| 111 | </listitem>
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| 112 | </varlistentry>
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| 113 |
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[cba2d4e] | 114 | <varlistentry>
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[0d84af1] | 115 | <term><parameter>-Dldconfig=false</parameter></term>
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[cba2d4e] | 116 | <listitem>
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[0d84af1] | 117 | <para>This switch prevents installation of a systemd unit that runs
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[69854d2a] | 118 | <command>ldconfig</command> at boot; this is not useful for source
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| 119 | distributions such as LFS, and makes the boot time longer. Remove
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| 120 | this option to enable running <command>ldconfig</command> at boot.</para>
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[cba2d4e] | 121 | </listitem>
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| 122 | </varlistentry>
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| 123 |
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[1118b17] | 124 | <varlistentry>
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[81ed05f] | 125 | <term><parameter>-Dsysusers=false</parameter></term>
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[1118b17] | 126 | <listitem>
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| 127 | <para>This switch prevents installation of systemd
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| 128 | services responsible for setting up the
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| 129 | <filename>/etc/group</filename> and
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| 130 | <filename>/etc/passwd</filename> files. Both files
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[f09dd59] | 131 | were created in the previous chapter. This daemon is not useful
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[0a75d62] | 132 | on an LFS system since user accounts are manually created.</para>
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[cba2d4e] | 133 | </listitem>
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| 134 | </varlistentry>
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| 135 |
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[be00729f] | 136 | <varlistentry>
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| 137 | <term><parameter>-Drpmmacrosdir=no</parameter></term>
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| 138 | <listitem>
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| 139 | <para>This switch disables installation of RPM Macros
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[69854d2a] | 140 | for use with systemd, because LFS does not support RPM.</para>
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[be00729f] | 141 | </listitem>
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| 142 | </varlistentry>
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[d1fbbd0] | 143 |
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| 144 | <varlistentry>
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| 145 | <term><parameter>-D{userdb,homed}=false</parameter></term>
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| 146 | <listitem>
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[69854d2a] | 147 | <para>Remove two daemons with dependencies that do not fit
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| 148 | within the scope of LFS.</para>
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[d1fbbd0] | 149 | </listitem>
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| 150 | </varlistentry>
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| 151 |
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[ceebda5] | 152 | <varlistentry>
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| 153 | <term><parameter>-Dman=false</parameter></term>
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| 154 | <listitem>
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| 155 | <para>Prevent the generation of man pages to avoid extra
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| 156 | dependencies. We will install pre-generated man pages for systemd
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[69854d2a] | 157 | from a tarball.</para>
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[ceebda5] | 158 | </listitem>
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| 159 | </varlistentry>
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| 160 |
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[38de42d] | 161 | <varlistentry>
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| 162 | <term><parameter>-Dmode=release</parameter></term>
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| 163 | <listitem>
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| 164 | <para>Disable some features considered experimental by upstream.
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| 165 | </para>
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| 166 | </listitem>
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| 167 | </varlistentry>
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| 168 |
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[77e340bc] | 169 | <varlistentry>
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| 170 | <term><parameter>-Dpamconfdir=no</parameter></term>
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| 171 | <listitem>
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| 172 | <para>Prevent the installation of a PAM configuration file not
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| 173 | functional on LFS.</para>
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| 174 | </listitem>
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| 175 | </varlistentry>
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[cba2d4e] | 176 | </variablelist>
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| 177 |
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| 178 | <para>Compile the package:</para>
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| 179 |
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[69c4524] | 180 | <screen><userinput remap="make">ninja</userinput></screen>
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[f896e21c] | 181 |
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| 182 | <para>Install the package:</para>
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| 183 |
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[69c4524] | 184 | <screen><userinput remap="install">ninja install</userinput></screen>
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[cba2d4e] | 185 |
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[ceebda5] | 186 | <para>Install the man pages:</para>
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[cba2d4e] | 187 |
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[b4008bb] | 188 | <!-- Please make sure systemd man pages tarball has a common leading
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| 189 | component in the path. -->
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| 190 | <screen><userinput remap="install">tar -xf ../../systemd-man-pages-&systemd-man-version;.tar.xz --strip-components=1 -C /usr/share/man</userinput></screen>
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[a5c2803] | 191 |
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[cba2d4e] | 192 | <para>Create the <filename>/etc/machine-id</filename> file needed by
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[1118b17] | 193 | <command>systemd-journald</command>:</para>
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[053b206] | 194 |
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[15f0f21] | 195 | <screen><userinput remap="adjust">systemd-machine-id-setup</userinput></screen>
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[cba2d4e] | 196 |
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[69854d2a] | 197 | <para>Set up the basic target structure:</para>
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[0aaf6a31] | 198 |
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| 199 | <screen><userinput remap="adjust">systemctl preset-all</userinput></screen>
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| 200 |
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[5156c400] | 201 | <para>Disable two services for upgrading binary distros. They are useless for
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[69854d2a] | 202 | a basic Linux system built from source, and each one will report an error if
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[f99a7eb] | 203 | it's enabled but not configured:</para>
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| 204 |
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[5156c400] | 205 | <screen><userinput remap="adjust">systemctl disable systemd-sysupdate{,-reboot}</userinput></screen>
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[172185a9] | 206 |
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[a5c2803] | 207 | <!-- dev: 50-pid-max.conf is not removed in BLFS, so I commented the following out.
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| 208 | If it causes any trouble, we can add this back and also copy it into BLFS -->
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| 209 | <!--
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[0aaf6a31] | 210 | <para>Prevent systemd from resetting the maximum PID value which causes
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| 211 | some problems with packages and units in BLFS:</para>
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[d672ab7] | 212 |
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[d1fbbd0] | 213 | <screen><userinput remap="adjust">rm -f /usr/lib/sysctl.d/50-pid-max.conf</userinput></screen>
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[a5c2803] | 214 | -->
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[0aaf6a31] | 215 |
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[f896e21c] | 216 | </sect2>
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| 217 |
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[6dfcfecc] | 218 | <!-- - - - - - - - - - -->
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| 219 | <!-- Multilib - 32bit -->
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| 220 | <!-- - - - - - - - - - -->
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| 221 |
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[fd48baa] | 222 | <sect2 arch="ml_32,ml_all" role="installation">
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[b3f1ebb3] | 223 | <title>Installation of systemd - 32-bit</title>
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| 224 |
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| 225 | <para>Clean previous build:</para>
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| 226 |
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[6dfcfecc] | 227 | <screen><userinput remap="pre">rm -rf *</userinput></screen>
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[b3f1ebb3] | 228 |
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| 229 | <para>Create a symlink to work around missing xsltproc:</para>
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| 230 |
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[6dfcfecc] | 231 | <!-- screen><userinput remap="pre">ln -sf /tools/bin/true /usr/bin/xsltproc</userinput></screen -->
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| 232 | <screen><userinput remap="pre">ln -sf /bin/true /usr/bin/xsltproc</userinput></screen>
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[b3f1ebb3] | 233 |
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[6dfcfecc] | 234 | <!-- with cross-LFS we have util-linux in place:
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[b3f1ebb3] | 235 | <para>Because we have not yet installed the final version of Util-Linux,
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| 236 | create links to the libraries in the approprite location:</para>
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| 237 |
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| 238 | <screen><userinput remap="pre">for file in /tools/lib32/lib{blkid,mount,uuid}*; do
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| 239 | ln -sf $file /usr/lib32/
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| 240 | done</userinput></screen>
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[6dfcfecc] | 241 | -->
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[b3f1ebb3] | 242 |
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| 243 | <para>Prepare systemd for compilation:</para>
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| 244 |
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[0ebda11] | 245 | <screen><userinput remap="configure">PKG_CONFIG_PATH="/usr/lib32/pkgconfig" \
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[b3f1ebb3] | 246 | CC="gcc -m32 -march=i686" \
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| 247 | CXX="g++ -m32 -march=i686" \
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| 248 | LANG=en_US.UTF-8 \
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| 249 | meson --prefix=/usr \
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| 250 | --sysconfdir=/etc \
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| 251 | --localstatedir=/var \
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[0f46bd2] | 252 | --libdir=/usr/lib32 \
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[0ebda11] | 253 | -Drootlibdir=/usr/lib32 \
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[3c2b819] | 254 | -Dblkid=true \
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| 255 | -Ddefault-dnssec=no \
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| 256 | -Dfirstboot=false \
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| 257 | -Dinstall-tests=false \
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| 258 | -Dldconfig=false \
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| 259 | -Dsysusers=false \
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| 260 | -Db_lto=false \
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| 261 | -Drpmmacrosdir=no \
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| 262 | -Dhomed=false \
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| 263 | -Duserdb=false \
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| 264 | -Dman=false \
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| 265 | -Dmode=release \
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[b3f1ebb3] | 266 | ..</userinput></screen>
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| 267 |
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| 268 | <para>Compile the package:</para>
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| 269 |
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| 270 | <screen><userinput remap="make">LANG=en_US.UTF-8 ninja</userinput></screen>
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| 271 |
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| 272 | <para>Install the package:</para>
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| 273 |
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| 274 | <screen><userinput remap="install">LANG=en_US.UTF-8 DESTDIR=$PWD/DESTDIR ninja install
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[0ebda11] | 275 | cp -Rv DESTDIR/usr/lib32/* /usr/lib32
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[b3f1ebb3] | 276 | rm -rf DESTDIR
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| 277 | rm -f /usr/bin/xsltproc</userinput></screen>
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| 278 |
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[6dfcfecc] | 279 | </sect2><!-- m32 -->
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[b3f1ebb3] | 280 |
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[6dfcfecc] | 281 | <!-- - - - - - - - - - -->
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| 282 | <!-- Multilib - x32bit -->
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| 283 | <!-- - - - - - - - - - -->
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| 284 |
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[fd48baa] | 285 | <sect2 arch="ml_x32,ml_all" role="installation">
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[b3f1ebb3] | 286 | <title>Installation of systemd - x32-bit</title>
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| 287 |
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| 288 | <para>Clean previous build:</para>
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| 289 |
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[6dfcfecc] | 290 | <screen><userinput remap="pre">rm -rf *</userinput></screen>
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[b3f1ebb3] | 291 |
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| 292 | <para>Create a symlink to work around missing xsltproc:</para>
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| 293 |
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[6dfcfecc] | 294 | <screen><userinput remap="pre">ln -sf /bin/true /usr/bin/xsltproc</userinput></screen>
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[3c2b819] | 295 | <!--
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[b3f1ebb3] | 296 | <para>Fix an issue on x32:</para>
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| 297 |
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| 298 | <screen><userinput remap="pre">sed '/log_debug/s@PRI_TIMEX@PRIi64@' -i src/timesync/timesyncd-manager.c
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| 299 | sed '/long drift_freq;/s@long @int64_t @' -i src/timesync/timesyncd-manager.h</userinput></screen>
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[3c2b819] | 300 | -->
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[b3f1ebb3] | 301 | <para>Prepare systemd for compilation:</para>
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| 302 |
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[0ebda11] | 303 | <screen><userinput remap="configure">PKG_CONFIG_PATH="/usr/libx32/pkgconfig" \
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[b3f1ebb3] | 304 | CC="gcc -mx32" \
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| 305 | CXX="g++ -mx32" \
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| 306 | CFLAGS+="-Wno-error=shift-overflow" \
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| 307 | CXXFLAGS+="-Wno-error=shift-overflow" \
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| 308 | LANG=en_US.UTF-8 \
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| 309 | meson --prefix=/usr \
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| 310 | --sysconfdir=/etc \
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| 311 | --localstatedir=/var \
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[0f46bd2] | 312 | --libdir=/usr/libx32 \
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[0ebda11] | 313 | -Drootlibdir=/usr/libx32 \
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[3c2b819] | 314 | -Dblkid=true \
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| 315 | -Ddefault-dnssec=no \
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| 316 | -Dfirstboot=false \
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| 317 | -Dinstall-tests=false \
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| 318 | -Dldconfig=false \
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| 319 | -Dsysusers=false \
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| 320 | -Db_lto=false \
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| 321 | -Drpmmacrosdir=no \
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| 322 | -Dhomed=false \
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| 323 | -Duserdb=false \
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| 324 | -Dman=false \
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| 325 | -Dmode=release \
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[b3f1ebb3] | 326 | ..</userinput></screen>
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| 327 |
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| 328 | <para>Compile the package:</para>
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| 329 |
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| 330 | <screen><userinput remap="make">LANG=en_US.UTF-8 ninja</userinput></screen>
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| 331 |
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| 332 | <para>Install the package:</para>
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| 333 |
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| 334 | <screen><userinput remap="install">LANG=en_US.UTF-8 DESTDIR=$PWD/DESTDIR ninja install
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[3c2b819] | 335 | cp -Rv DESTDIR/usr/libx32/* /usr/libx32
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[b3f1ebb3] | 336 | rm -rf DESTDIR
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| 337 | rm -f /usr/bin/xsltproc</userinput></screen>
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| 338 |
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[6dfcfecc] | 339 | </sect2><!-- mx32 -->
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[b3f1ebb3] | 340 |
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[cba2d4e] | 341 | <sect2 id="contents-systemd" role="content">
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[1118b17] | 342 | <title>Contents of systemd</title>
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[f896e21c] | 343 |
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| 344 | <segmentedlist>
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| 345 | <segtitle>Installed programs</segtitle>
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| 346 | <segtitle>Installed libraries</segtitle>
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| 347 | <segtitle>Installed directories</segtitle>
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| 348 |
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| 349 | <seglistitem>
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[662f649] | 350 | <seg>busctl, coredumpctl, halt (symlink to systemctl),
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[78cc3be] | 351 | hostnamectl, init, journalctl, kernel-install, localectl, loginctl,
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[d7a9421] | 352 | machinectl, networkctl, oomctl, portablectl, poweroff (symlink to
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[78cc3be] | 353 | systemctl), reboot (symlink to systemctl), resolvconf (symlink to
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| 354 | resolvectl), resolvectl, runlevel (symlink to systemctl), shutdown
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| 355 | (symlink to systemctl), systemctl, systemd-analyze,
|
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[1118b17] | 356 | systemd-ask-password, systemd-cat, systemd-cgls, systemd-cgtop,
|
---|
[662f649] | 357 | systemd-creds, systemd-delta, systemd-detect-virt,
|
---|
[d7a9421] | 358 | systemd-dissect, systemd-escape, systemd-hwdb, systemd-id128,
|
---|
| 359 | systemd-inhibit, systemd-machine-id-setup,
|
---|
[78cc3be] | 360 | systemd-mount, systemd-notify, systemd-nspawn, systemd-path,
|
---|
[d1fbbd0] | 361 | systemd-repart, systemd-resolve (symlink to resolvectl), systemd-run,
|
---|
[d7a9421] | 362 | systemd-socket-activate, systemd-stdio-bridge, systemd-sysext,
|
---|
| 363 | systemd-tmpfiles, systemd-tty-ask-password-agent,
|
---|
| 364 | systemd-umount (symlink to systemd-mount),
|
---|
| 365 | telinit (symlink to systemctl), timedatectl, and udevadm</seg>
|
---|
[1118b17] | 366 | <seg>libnss_myhostname.so.2, libnss_mymachines.so.2,
|
---|
[78cc3be] | 367 | libnss_resolve.so.2, libnss_systemd.so.2,
|
---|
[d7a9421] | 368 | libsystemd.so, libsystemd-shared-&systemd-version;.so (in /usr/lib/systemd),
|
---|
[a840e59] | 369 | and libudev.so</seg>
|
---|
[59d90df] | 370 | <seg>/etc/binfmt.d, /etc/init.d, /etc/kernel, /etc/modules-load.d,
|
---|
[cba2d4e] | 371 | /etc/sysctl.d, /etc/systemd, /etc/tmpfiles.d, /etc/udev,
|
---|
[d7a9421] | 372 | /etc/xdg/systemd, /usr/lib/systemd, /usr/lib/udev, /usr/include/systemd,
|
---|
[d672ab7] | 373 | /usr/lib/binfmt.d, /usr/lib/environment.d, /usr/lib/kernel,
|
---|
| 374 | /usr/lib/modules-load.d, /usr/lib/sysctl.d, /usr/lib/systemd,
|
---|
[4ea78e0] | 375 | /usr/lib/tmpfiles.d,
|
---|
[1118b17] | 376 | /usr/share/doc/systemd-&systemd-version;, /usr/share/factory,
|
---|
| 377 | /usr/share/systemd, /var/lib/systemd, and /var/log/journal</seg>
|
---|
[f896e21c] | 378 | </seglistitem>
|
---|
| 379 | </segmentedlist>
|
---|
| 380 |
|
---|
| 381 | <variablelist>
|
---|
| 382 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
---|
| 383 | <?dbfo list-presentation="list"?>
|
---|
| 384 | <?dbhtml list-presentation="table"?>
|
---|
| 385 |
|
---|
[cba2d4e] | 386 | <varlistentry id="busctl">
|
---|
| 387 | <term><command>busctl</command></term>
|
---|
| 388 | <listitem>
|
---|
[6dfcfecc] | 389 | <para>Is used to introspect and monitor the D-Bus bus</para>
|
---|
[cba2d4e] | 390 | <indexterm zone="ch-system-systemd busctl">
|
---|
| 391 | <primary sortas="b-busctl">busctl</primary>
|
---|
| 392 | </indexterm>
|
---|
| 393 | </listitem>
|
---|
| 394 | </varlistentry>
|
---|
| 395 |
|
---|
[1118b17] | 396 | <varlistentry id="coredumpctl">
|
---|
| 397 | <term><command>coredumpctl</command></term>
|
---|
| 398 | <listitem>
|
---|
[6dfcfecc] | 399 | <para>Is used to retrieve coredumps from the systemd journal</para>
|
---|
[1118b17] | 400 | <indexterm zone="ch-system-systemd coredumpctl">
|
---|
| 401 | <primary sortas="b-coredumpctl">coredumpctl</primary>
|
---|
| 402 | </indexterm>
|
---|
| 403 | </listitem>
|
---|
| 404 | </varlistentry>
|
---|
| 405 |
|
---|
[cba2d4e] | 406 | <varlistentry id="halt">
|
---|
| 407 | <term><command>halt</command></term>
|
---|
| 408 | <listitem>
|
---|
| 409 | <para>Normally invokes <command>shutdown</command> with the
|
---|
| 410 | <parameter>-h</parameter> option, except when already in run-level 0,
|
---|
[69854d2a] | 411 | when it tells the kernel to halt the system; it notes in the
|
---|
[cba2d4e] | 412 | file <filename>/var/log/wtmp</filename> that the system is being
|
---|
[1118b17] | 413 | brought down</para>
|
---|
[cba2d4e] | 414 | <indexterm zone="ch-system-systemd halt">
|
---|
| 415 | <primary sortas="b-halt">halt</primary>
|
---|
| 416 | </indexterm>
|
---|
| 417 | </listitem>
|
---|
| 418 | </varlistentry>
|
---|
| 419 |
|
---|
| 420 | <varlistentry id="hostnamectl">
|
---|
| 421 | <term><command>hostnamectl</command></term>
|
---|
| 422 | <listitem>
|
---|
[6dfcfecc] | 423 | <para>Is used to query and change the system hostname and related
|
---|
[1118b17] | 424 | settings</para>
|
---|
[cba2d4e] | 425 | <indexterm zone="ch-system-systemd hostnamectl">
|
---|
| 426 | <primary sortas="b-hostnamectl">hostnamectl</primary>
|
---|
| 427 | </indexterm>
|
---|
| 428 | </listitem>
|
---|
| 429 | </varlistentry>
|
---|
| 430 |
|
---|
| 431 | <varlistentry id="init">
|
---|
| 432 | <term><command>init</command></term>
|
---|
| 433 | <listitem>
|
---|
[69854d2a] | 434 | <para>Is the first process to be started after the kernel has initialized
|
---|
| 435 | the hardware; <command>init</command> takes over the boot process and starts the
|
---|
| 436 | processes specified by its configuration files; in this case, it starts
|
---|
[4c8c128] | 437 | systemd</para>
|
---|
[cba2d4e] | 438 | <indexterm zone="ch-system-systemd init">
|
---|
| 439 | <primary sortas="b-init">init</primary>
|
---|
| 440 | </indexterm>
|
---|
| 441 | </listitem>
|
---|
| 442 | </varlistentry>
|
---|
| 443 |
|
---|
| 444 | <varlistentry id="journalctl">
|
---|
| 445 | <term><command>journalctl</command></term>
|
---|
| 446 | <listitem>
|
---|
[6dfcfecc] | 447 | <para>Is used to query the contents of the systemd journal</para>
|
---|
[cba2d4e] | 448 | <indexterm zone="ch-system-systemd journalctl">
|
---|
| 449 | <primary sortas="b-journalctl">journalctl</primary>
|
---|
| 450 | </indexterm>
|
---|
| 451 | </listitem>
|
---|
| 452 | </varlistentry>
|
---|
| 453 |
|
---|
| 454 | <varlistentry id="kernel-install">
|
---|
| 455 | <term><command>kernel-install</command></term>
|
---|
| 456 | <listitem>
|
---|
[6dfcfecc] | 457 | <para>Is used to add and remove kernel and initramfs images to and
|
---|
[69854d2a] | 458 | from /boot; in LFS, this is done manually</para>
|
---|
[cba2d4e] | 459 | <indexterm zone="ch-system-systemd kernel-install">
|
---|
| 460 | <primary sortas="b-kernel-install">kernel-install</primary>
|
---|
| 461 | </indexterm>
|
---|
| 462 | </listitem>
|
---|
| 463 | </varlistentry>
|
---|
| 464 |
|
---|
| 465 | <varlistentry id="localectl">
|
---|
| 466 | <term><command>localectl</command></term>
|
---|
| 467 | <listitem>
|
---|
[6dfcfecc] | 468 | <para>Is used to query and change the system locale and keyboard layout
|
---|
[1118b17] | 469 | settings</para>
|
---|
[cba2d4e] | 470 | <indexterm zone="ch-system-systemd localectl">
|
---|
| 471 | <primary sortas="b-localectl">localectl</primary>
|
---|
| 472 | </indexterm>
|
---|
| 473 | </listitem>
|
---|
| 474 | </varlistentry>
|
---|
| 475 |
|
---|
| 476 | <varlistentry id="loginctl">
|
---|
| 477 | <term><command>loginctl</command></term>
|
---|
| 478 | <listitem>
|
---|
[6dfcfecc] | 479 | <para>Is used to introspect and control the state of the systemd Login
|
---|
[1118b17] | 480 | Manager</para>
|
---|
[cba2d4e] | 481 | <indexterm zone="ch-system-systemd loginctl">
|
---|
| 482 | <primary sortas="b-loginctl">loginctl</primary>
|
---|
| 483 | </indexterm>
|
---|
| 484 | </listitem>
|
---|
| 485 | </varlistentry>
|
---|
| 486 |
|
---|
| 487 | <varlistentry id="machinectl">
|
---|
| 488 | <term><command>machinectl</command></term>
|
---|
| 489 | <listitem>
|
---|
[6dfcfecc] | 490 | <para>Is used to introspect and control the state of the systemd Virtual
|
---|
[cba2d4e] | 491 | Machine and Container Registration Manager</para>
|
---|
| 492 | <indexterm zone="ch-system-systemd machinectl">
|
---|
| 493 | <primary sortas="b-machinectl">machinectl</primary>
|
---|
| 494 | </indexterm>
|
---|
| 495 | </listitem>
|
---|
| 496 | </varlistentry>
|
---|
| 497 |
|
---|
[1118b17] | 498 | <varlistentry id="networkctl">
|
---|
| 499 | <term><command>networkctl</command></term>
|
---|
| 500 | <listitem>
|
---|
[d672ab7] | 501 | <para>Is used to introspect and configure the state of the network
|
---|
[6dfcfecc] | 502 | links configured by systemd-networkd</para>
|
---|
[1118b17] | 503 | <indexterm zone="ch-system-systemd networkctl">
|
---|
| 504 | <primary sortas="b-networkctl">networkctl</primary>
|
---|
| 505 | </indexterm>
|
---|
| 506 | </listitem>
|
---|
| 507 | </varlistentry>
|
---|
| 508 |
|
---|
[d7a9421] | 509 | <varlistentry id="oomctl">
|
---|
| 510 | <term><command>oomctl</command></term>
|
---|
| 511 | <listitem>
|
---|
| 512 | <para>Controls the systemd Out Of Memory daemon</para>
|
---|
| 513 | <indexterm zone="ch-system-systemd oomctl">
|
---|
| 514 | <primary sortas="b-oomctl">oomctl</primary>
|
---|
| 515 | </indexterm>
|
---|
| 516 | </listitem>
|
---|
| 517 | </varlistentry>
|
---|
| 518 |
|
---|
[78cc3be] | 519 | <varlistentry id="portablectl">
|
---|
| 520 | <term><command>portablectl</command></term>
|
---|
| 521 | <listitem>
|
---|
[6dfcfecc] | 522 | <para>Is used to attach or detach portable services from the local
|
---|
[78cc3be] | 523 | system</para>
|
---|
| 524 | <indexterm zone="ch-system-systemd portablectl">
|
---|
| 525 | <primary sortas="b-portablectl">portablectl</primary>
|
---|
| 526 | </indexterm>
|
---|
| 527 | </listitem>
|
---|
| 528 | </varlistentry>
|
---|
| 529 |
|
---|
[cba2d4e] | 530 | <varlistentry id="poweroff">
|
---|
| 531 | <term><command>poweroff</command></term>
|
---|
| 532 | <listitem>
|
---|
[6dfcfecc] | 533 | <para>Instructs the kernel to halt the system and switch off the computer
|
---|
[1118b17] | 534 | (see <command>halt</command>)</para>
|
---|
[cba2d4e] | 535 | <indexterm zone="ch-system-systemd poweroff">
|
---|
| 536 | <primary sortas="b-poweroff">poweroff</primary>
|
---|
| 537 | </indexterm>
|
---|
| 538 | </listitem>
|
---|
| 539 | </varlistentry>
|
---|
| 540 |
|
---|
| 541 | <varlistentry id="reboot">
|
---|
| 542 | <term><command>reboot</command></term>
|
---|
[f896e21c] | 543 | <listitem>
|
---|
[6dfcfecc] | 544 | <para>Instructs the kernel to reboot the system (see
|
---|
[1118b17] | 545 | <command>halt</command>)</para>
|
---|
[cba2d4e] | 546 | <indexterm zone="ch-system-systemd reboot">
|
---|
| 547 | <primary sortas="b-reboot">reboot</primary>
|
---|
[f896e21c] | 548 | </indexterm>
|
---|
| 549 | </listitem>
|
---|
| 550 | </varlistentry>
|
---|
| 551 |
|
---|
[78cc3be] | 552 | <varlistentry id="resolvconf">
|
---|
| 553 | <term><command>resolvconf</command></term>
|
---|
| 554 | <listitem>
|
---|
[6dfcfecc] | 555 | <para>Registers DNS server and domain configuration with
|
---|
[93058448] | 556 | <command>systemd-resolved</command></para>
|
---|
[78cc3be] | 557 | <indexterm zone="ch-system-systemd resolvconf">
|
---|
| 558 | <primary sortas="b-resolvconf">resolvconf</primary>
|
---|
| 559 | </indexterm>
|
---|
| 560 | </listitem>
|
---|
| 561 | </varlistentry>
|
---|
| 562 |
|
---|
| 563 | <varlistentry id="resolvectl">
|
---|
| 564 | <term><command>resolvectl</command></term>
|
---|
| 565 | <listitem>
|
---|
[6dfcfecc] | 566 | <para>Sends control commands to the network name resolution
|
---|
| 567 | manager, or resolves domain names, IPv4 and IPv6 addresses,
|
---|
[4c8c128] | 568 | DNS records, and services</para>
|
---|
[78cc3be] | 569 | <indexterm zone="ch-system-systemd resolvectl">
|
---|
| 570 | <primary sortas="b-resolvectl">resolvectl</primary>
|
---|
| 571 | </indexterm>
|
---|
| 572 | </listitem>
|
---|
| 573 | </varlistentry>
|
---|
| 574 |
|
---|
[cba2d4e] | 575 | <varlistentry id="runlevel">
|
---|
| 576 | <term><command>runlevel</command></term>
|
---|
[f896e21c] | 577 | <listitem>
|
---|
[6dfcfecc] | 578 | <para>Outputs the previous and the current run-level, as noted in the
|
---|
[edd83dc] | 579 | last run-level record in <filename>/run/utmp</filename></para>
|
---|
[cba2d4e] | 580 | <indexterm zone="ch-system-systemd runlevel">
|
---|
| 581 | <primary sortas="b-runlevel">runlevel</primary>
|
---|
[f896e21c] | 582 | </indexterm>
|
---|
| 583 | </listitem>
|
---|
| 584 | </varlistentry>
|
---|
| 585 |
|
---|
[cba2d4e] | 586 | <varlistentry id="shutdown">
|
---|
| 587 | <term><command>shutdown</command></term>
|
---|
[f896e21c] | 588 | <listitem>
|
---|
[d672ab7] | 589 | <para>Brings the system down in a safe and secure manner, signaling
|
---|
[6dfcfecc] | 590 | all processes and notifying all logged-in users</para>
|
---|
[cba2d4e] | 591 | <indexterm zone="ch-system-systemd shutdown">
|
---|
| 592 | <primary sortas="b-shutdown">shutdown</primary>
|
---|
[f896e21c] | 593 | </indexterm>
|
---|
| 594 | </listitem>
|
---|
| 595 | </varlistentry>
|
---|
| 596 |
|
---|
[cba2d4e] | 597 | <varlistentry id="systemctl">
|
---|
| 598 | <term><command>systemctl</command></term>
|
---|
[f896e21c] | 599 | <listitem>
|
---|
[6dfcfecc] | 600 | <para>Is used to introspect and control the state of the systemd system
|
---|
[1118b17] | 601 | and service manager</para>
|
---|
[cba2d4e] | 602 | <indexterm zone="ch-system-systemd systemctl">
|
---|
| 603 | <primary sortas="b-systemctl">systemctl</primary>
|
---|
| 604 | </indexterm>
|
---|
| 605 | </listitem>
|
---|
| 606 | </varlistentry>
|
---|
| 607 |
|
---|
| 608 | <varlistentry id="systemd-analyze">
|
---|
| 609 | <term><command>systemd-analyze</command></term>
|
---|
| 610 | <listitem>
|
---|
[69854d2a] | 611 | <para>Is used to analyze system startup performance,
|
---|
| 612 | as well as identify troublesome systemd units</para>
|
---|
[cba2d4e] | 613 | <indexterm zone="ch-system-systemd systemd-analyze">
|
---|
| 614 | <primary sortas="b-systemd-analyze">systemd-analyze</primary>
|
---|
| 615 | </indexterm>
|
---|
| 616 | </listitem>
|
---|
| 617 | </varlistentry>
|
---|
| 618 |
|
---|
| 619 | <varlistentry id="systemd-ask-password">
|
---|
| 620 | <term><command>systemd-ask-password</command></term>
|
---|
| 621 | <listitem>
|
---|
[6dfcfecc] | 622 | <para>Is used to query a system password or passphrase from the user,
|
---|
[69854d2a] | 623 | using a message specified on the Linux command line</para>
|
---|
[cba2d4e] | 624 | <indexterm zone="ch-system-systemd systemd-ask-password">
|
---|
| 625 | <primary sortas="b-systemd-ask-password">systemd-ask-password</primary>
|
---|
| 626 | </indexterm>
|
---|
| 627 | </listitem>
|
---|
| 628 | </varlistentry>
|
---|
| 629 |
|
---|
| 630 | <varlistentry id="systemd-cat">
|
---|
| 631 | <term><command>systemd-cat</command></term>
|
---|
| 632 | <listitem>
|
---|
[6dfcfecc] | 633 | <para>Is used to connect the STDOUT and STDERR outputs of a process
|
---|
[4c8c128] | 634 | with the systemd journal
|
---|
[cba2d4e] | 635 | </para>
|
---|
| 636 | <indexterm zone="ch-system-systemd systemd-cat">
|
---|
| 637 | <primary sortas="b-systemd-cat">systemd-cat</primary>
|
---|
| 638 | </indexterm>
|
---|
| 639 | </listitem>
|
---|
| 640 | </varlistentry>
|
---|
| 641 |
|
---|
| 642 | <varlistentry id="systemd-cgls">
|
---|
| 643 | <term><command>systemd-cgls</command></term>
|
---|
| 644 | <listitem>
|
---|
[1118b17] | 645 | <para>Recursively shows the contents of the selected Linux control
|
---|
| 646 | group hierarchy in a tree</para>
|
---|
[cba2d4e] | 647 | <indexterm zone="ch-system-systemd systemd-cgls">
|
---|
| 648 | <primary sortas="b-systemd-cgls">systemd-cgls</primary>
|
---|
| 649 | </indexterm>
|
---|
| 650 | </listitem>
|
---|
| 651 | </varlistentry>
|
---|
| 652 |
|
---|
| 653 | <varlistentry id="systemd-cgtop">
|
---|
| 654 | <term><command>systemd-cgtop</command></term>
|
---|
| 655 | <listitem>
|
---|
[1118b17] | 656 | <para>Shows the top control groups of the local Linux control group
|
---|
[69854d2a] | 657 | hierarchy, ordered by their CPU, memory and disk I/O loads</para>
|
---|
[cba2d4e] | 658 | <indexterm zone="ch-system-systemd systemd-cgtop">
|
---|
| 659 | <primary sortas="b-systemd-cgtop">systemd-cgtop</primary>
|
---|
| 660 | </indexterm>
|
---|
| 661 | </listitem>
|
---|
| 662 | </varlistentry>
|
---|
| 663 |
|
---|
[662f649] | 664 | <varlistentry id="systemd-creds">
|
---|
| 665 | <term><command>systemd-creds</command></term>
|
---|
[d7a9421] | 666 | <listitem>
|
---|
[9f0a642] | 667 | <para>Displays and processes credentials</para>
|
---|
[662f649] | 668 | <indexterm zone="ch-system-systemd systemd-creds">
|
---|
| 669 | <primary sortas="b-systemd-creds">systemd-creds</primary>
|
---|
[d7a9421] | 670 | </indexterm>
|
---|
| 671 | </listitem>
|
---|
| 672 | </varlistentry>
|
---|
| 673 |
|
---|
[cba2d4e] | 674 | <varlistentry id="systemd-delta">
|
---|
| 675 | <term><command>systemd-delta</command></term>
|
---|
| 676 | <listitem>
|
---|
[6dfcfecc] | 677 | <para>Is used to identify and compare configuration files in
|
---|
[69854d2a] | 678 | <filename class="directory">/etc</filename> that override the defaults
|
---|
| 679 | in <filename class="directory">/usr</filename></para>
|
---|
[cba2d4e] | 680 | <indexterm zone="ch-system-systemd systemd-delta">
|
---|
| 681 | <primary sortas="b-systemd-delta">systemd-delta</primary>
|
---|
| 682 | </indexterm>
|
---|
| 683 | </listitem>
|
---|
| 684 | </varlistentry>
|
---|
| 685 |
|
---|
| 686 | <varlistentry id="systemd-detect-virt">
|
---|
| 687 | <term><command>systemd-detect-virt</command></term>
|
---|
| 688 | <listitem>
|
---|
[6dfcfecc] | 689 | <para>Detects whether the system is being run in a virtual
|
---|
[4c8c128] | 690 | environment, and adjusts udev accordingly</para>
|
---|
[cba2d4e] | 691 | <indexterm zone="ch-system-systemd systemd-detect-virt">
|
---|
| 692 | <primary sortas="b-systemd-detect-virt">systemd-detect-virt</primary>
|
---|
| 693 | </indexterm>
|
---|
| 694 | </listitem>
|
---|
| 695 | </varlistentry>
|
---|
| 696 |
|
---|
[38de42d] | 697 | <varlistentry id="systemd-dissect">
|
---|
| 698 | <term><command>systemd-dissect</command></term>
|
---|
| 699 | <listitem>
|
---|
[4c8c128] | 700 | <para>Is used to inspect OS disk images</para>
|
---|
[38de42d] | 701 | <indexterm zone="ch-system-systemd systemd-dissect">
|
---|
| 702 | <primary sortas="b-systemd-dissect">systemd-dissect</primary>
|
---|
| 703 | </indexterm>
|
---|
| 704 | </listitem>
|
---|
| 705 | </varlistentry>
|
---|
| 706 |
|
---|
[1118b17] | 707 | <varlistentry id="systemd-escape">
|
---|
| 708 | <term><command>systemd-escape</command></term>
|
---|
| 709 | <listitem>
|
---|
[6dfcfecc] | 710 | <para>Is used to escape strings for inclusion in systemd unit
|
---|
[1118b17] | 711 | names</para>
|
---|
| 712 | <indexterm zone="ch-system-systemd systemd-escape">
|
---|
| 713 | <primary sortas="b-systemd-escape">systemd-escape</primary>
|
---|
| 714 | </indexterm>
|
---|
| 715 | </listitem>
|
---|
| 716 | </varlistentry>
|
---|
| 717 |
|
---|
| 718 | <varlistentry id="systemd-hwdb">
|
---|
| 719 | <term><command>systemd-hwdb</command></term>
|
---|
| 720 | <listitem>
|
---|
[6dfcfecc] | 721 | <para>Is used to manage the hardware database (hwdb)</para>
|
---|
[1118b17] | 722 | <indexterm zone="ch-system-systemd systemd-hwdb">
|
---|
| 723 | <primary sortas="b-systemd-hwdb">systemd-hwdb</primary>
|
---|
| 724 | </indexterm>
|
---|
| 725 | </listitem>
|
---|
| 726 | </varlistentry>
|
---|
| 727 |
|
---|
[78cc3be] | 728 | <varlistentry id="systemd-id128">
|
---|
| 729 | <term><command>systemd-id128</command></term>
|
---|
| 730 | <listitem>
|
---|
[69854d2a] | 731 | <para>Generates and prints id128 (UUID) strings</para>
|
---|
[78cc3be] | 732 | <indexterm zone="ch-system-systemd systemd-id128">
|
---|
| 733 | <primary sortas="b-systemd-id128">systemd-id128</primary>
|
---|
| 734 | </indexterm>
|
---|
| 735 | </listitem>
|
---|
| 736 | </varlistentry>
|
---|
| 737 |
|
---|
[cba2d4e] | 738 | <varlistentry id="systemd-inhibit">
|
---|
| 739 | <term><command>systemd-inhibit</command></term>
|
---|
| 740 | <listitem>
|
---|
[6dfcfecc] | 741 | <para>Is used to execute a program with a shutdown, sleep or idle
|
---|
| 742 | inhibitor lock taken, preventing an action such as a system shutdown
|
---|
[4c8c128] | 743 | until the process is completed</para>
|
---|
[cba2d4e] | 744 | <indexterm zone="ch-system-systemd systemd-inhibit">
|
---|
| 745 | <primary sortas="b-systemd-inhibit">systemd-inhibit</primary>
|
---|
| 746 | </indexterm>
|
---|
| 747 | </listitem>
|
---|
| 748 | </varlistentry>
|
---|
| 749 |
|
---|
| 750 | <varlistentry id="systemd-machine-id-setup">
|
---|
| 751 | <term><command>systemd-machine-id-setup</command></term>
|
---|
| 752 | <listitem>
|
---|
[6dfcfecc] | 753 | <para>Is used by system installer tools to initialize the machine ID
|
---|
[1118b17] | 754 | stored in <filename>/etc/machine-id</filename> at install time with a
|
---|
| 755 | randomly generated ID</para>
|
---|
[cba2d4e] | 756 | <indexterm zone="ch-system-systemd systemd-machine-id-setup">
|
---|
| 757 | <primary sortas="b-systemd-machine-id-setup">systemd-machine-id-setup</primary>
|
---|
| 758 | </indexterm>
|
---|
| 759 | </listitem>
|
---|
| 760 | </varlistentry>
|
---|
| 761 |
|
---|
[13c8b42] | 762 | <varlistentry id="systemd-mount">
|
---|
| 763 | <term><command>systemd-mount</command></term>
|
---|
| 764 | <listitem>
|
---|
[4c8c128] | 765 | <para>Is used to temporarily mount or automount disks</para>
|
---|
[13c8b42] | 766 | <indexterm zone="ch-system-systemd systemd-mount">
|
---|
| 767 | <primary sortas="b-systemd-mount">systemd-mount</primary>
|
---|
| 768 | </indexterm>
|
---|
| 769 | </listitem>
|
---|
| 770 | </varlistentry>
|
---|
| 771 |
|
---|
[cba2d4e] | 772 | <varlistentry id="systemd-notify">
|
---|
| 773 | <term><command>systemd-notify</command></term>
|
---|
| 774 | <listitem>
|
---|
[69854d2a] | 775 | <para>Is used by daemon scripts to notify the init system of status
|
---|
[1118b17] | 776 | changes</para>
|
---|
[cba2d4e] | 777 | <indexterm zone="ch-system-systemd systemd-notify">
|
---|
| 778 | <primary sortas="b-systemd-notify">systemd-notify</primary>
|
---|
| 779 | </indexterm>
|
---|
| 780 | </listitem>
|
---|
| 781 | </varlistentry>
|
---|
| 782 |
|
---|
| 783 | <varlistentry id="systemd-nspawn">
|
---|
| 784 | <term><command>systemd-nspawn</command></term>
|
---|
| 785 | <listitem>
|
---|
[69854d2a] | 786 | <para>Is used to run a command, or an entire OS, in a light-weight namespace
|
---|
[1118b17] | 787 | container</para>
|
---|
[cba2d4e] | 788 | <indexterm zone="ch-system-systemd systemd-nspawn">
|
---|
| 789 | <primary sortas="b-systemd-nspawn">systemd-nspawn</primary>
|
---|
| 790 | </indexterm>
|
---|
| 791 | </listitem>
|
---|
| 792 | </varlistentry>
|
---|
| 793 |
|
---|
[1118b17] | 794 | <varlistentry id="systemd-path">
|
---|
| 795 | <term><command>systemd-path</command></term>
|
---|
| 796 | <listitem>
|
---|
[6dfcfecc] | 797 | <para>Is used to query system and user paths</para>
|
---|
[1118b17] | 798 | <indexterm zone="ch-system-systemd systemd-path">
|
---|
| 799 | <primary sortas="b-systemd-path">systemd-path</primary>
|
---|
| 800 | </indexterm>
|
---|
| 801 | </listitem>
|
---|
| 802 | </varlistentry>
|
---|
| 803 |
|
---|
[d1fbbd0] | 804 | <varlistentry id="systemd-repart">
|
---|
| 805 | <term><command>systemd-repart</command></term>
|
---|
| 806 | <listitem>
|
---|
[6dfcfecc] | 807 | <para>Is used to grow and add partitions to a partition table when
|
---|
[69854d2a] | 808 | systemd is used with an OS image (e.g. a container)</para>
|
---|
[d1fbbd0] | 809 | <indexterm zone="ch-system-systemd systemd-repart">
|
---|
| 810 | <primary sortas="b-systemd-repart">systemd-repart</primary>
|
---|
| 811 | </indexterm>
|
---|
| 812 | </listitem>
|
---|
| 813 | </varlistentry>
|
---|
| 814 |
|
---|
[1118b17] | 815 | <varlistentry id="systemd-resolve">
|
---|
| 816 | <term><command>systemd-resolve</command></term>
|
---|
| 817 | <listitem>
|
---|
[6dfcfecc] | 818 | <para>Is used to resolve domain names, IPV4 and IPv6 addresses, DNS
|
---|
[1118b17] | 819 | resource records, and services</para>
|
---|
| 820 | <indexterm zone="ch-system-systemd systemd-resolve">
|
---|
| 821 | <primary sortas="b-systemd-resolve">systemd-resolve</primary>
|
---|
| 822 | </indexterm>
|
---|
| 823 | </listitem>
|
---|
| 824 | </varlistentry>
|
---|
| 825 |
|
---|
[cba2d4e] | 826 | <varlistentry id="systemd-run">
|
---|
| 827 | <term><command>systemd-run</command></term>
|
---|
| 828 | <listitem>
|
---|
[6dfcfecc] | 829 | <para>Is used to create and start a transient .service or a .scope
|
---|
[69854d2a] | 830 | unit and run the specified command in it; this is useful for
|
---|
[4c8c128] | 831 | validating systemd units</para>
|
---|
[cba2d4e] | 832 | <indexterm zone="ch-system-systemd systemd-run">
|
---|
| 833 | <primary sortas="b-systemd-run">systemd-run</primary>
|
---|
| 834 | </indexterm>
|
---|
| 835 | </listitem>
|
---|
| 836 | </varlistentry>
|
---|
| 837 |
|
---|
[13c8b42] | 838 | <varlistentry id="systemd-socket-activate">
|
---|
| 839 | <term><command>systemd-socket-activate</command></term>
|
---|
| 840 | <listitem>
|
---|
[6dfcfecc] | 841 | <para>Is used to listen on socket devices and launch a process upon
|
---|
[4c8c128] | 842 | a successful connection to the socket</para>
|
---|
[13c8b42] | 843 | <indexterm zone="ch-system-systemd systemd-socket-activate">
|
---|
| 844 | <primary sortas="b-systemd-socket-activate">systemd-socket-activate</primary>
|
---|
| 845 | </indexterm>
|
---|
| 846 | </listitem>
|
---|
| 847 | </varlistentry>
|
---|
| 848 |
|
---|
[d7a9421] | 849 | <varlistentry id="systemd-sysext">
|
---|
| 850 | <term><command>systemd-sysext</command></term>
|
---|
| 851 | <listitem>
|
---|
[871fd2f] | 852 | <para>Activates system extension images</para>
|
---|
[d7a9421] | 853 | <indexterm zone="ch-system-systemd systemd-sysext">
|
---|
| 854 | <primary sortas="b-systemd-sysext">systemd-sysext</primary>
|
---|
| 855 | </indexterm>
|
---|
| 856 | </listitem>
|
---|
| 857 | </varlistentry>
|
---|
| 858 |
|
---|
[cba2d4e] | 859 | <varlistentry id="systemd-tmpfiles">
|
---|
| 860 | <term><command>systemd-tmpfiles</command></term>
|
---|
| 861 | <listitem>
|
---|
[69854d2a] | 862 | <para>Creates, deletes, and cleans up volatile and temporary files and
|
---|
[1118b17] | 863 | directories, based on the configuration file format and location
|
---|
| 864 | specified in
|
---|
| 865 | <filename class="directory">tmpfiles.d</filename> directories</para>
|
---|
[cba2d4e] | 866 | <indexterm zone="ch-system-systemd systemd-tmpfiles">
|
---|
| 867 | <primary sortas="b-systemd-tmpfiles">systemd-tmpfiles</primary>
|
---|
| 868 | </indexterm>
|
---|
| 869 | </listitem>
|
---|
| 870 | </varlistentry>
|
---|
| 871 |
|
---|
[78cc3be] | 872 | <varlistentry id="systemd-umount">
|
---|
| 873 | <term><command>systemd-umount</command></term>
|
---|
| 874 | <listitem>
|
---|
[6dfcfecc] | 875 | <para>Unmounts mount points</para>
|
---|
[78cc3be] | 876 | <indexterm zone="ch-system-systemd systemd-umount">
|
---|
| 877 | <primary sortas="b-systemd-umount">systemd-umount</primary>
|
---|
| 878 | </indexterm>
|
---|
| 879 | </listitem>
|
---|
| 880 | </varlistentry>
|
---|
| 881 |
|
---|
[cba2d4e] | 882 | <varlistentry id="systemd-tty-ask-password-agent">
|
---|
| 883 | <term><command>systemd-tty-ask-password-agent</command></term>
|
---|
| 884 | <listitem>
|
---|
[d672ab7] | 885 | <para>Is used to list and/or process pending systemd password
|
---|
[6dfcfecc] | 886 | requests</para>
|
---|
[cba2d4e] | 887 | <indexterm zone="ch-system-systemd systemd-tty-ask-password-agent">
|
---|
| 888 | <primary sortas="b-systemd-tty-ask-password-agent">systemd-tty-ask-password-agent</primary>
|
---|
| 889 | </indexterm>
|
---|
| 890 | </listitem>
|
---|
| 891 | </varlistentry>
|
---|
| 892 |
|
---|
| 893 | <varlistentry id="telinit">
|
---|
| 894 | <term><command>telinit</command></term>
|
---|
| 895 | <listitem>
|
---|
[1118b17] | 896 | <para>Tells <command>init</command> which run-level to change
|
---|
| 897 | to</para>
|
---|
[cba2d4e] | 898 | <indexterm zone="ch-system-systemd telinit">
|
---|
| 899 | <primary sortas="b-telinit">telinit</primary>
|
---|
| 900 | </indexterm>
|
---|
| 901 | </listitem>
|
---|
| 902 | </varlistentry>
|
---|
| 903 |
|
---|
| 904 | <varlistentry id="timedatectl">
|
---|
| 905 | <term><command>timedatectl</command></term>
|
---|
| 906 | <listitem>
|
---|
[6dfcfecc] | 907 | <para>Is used to query and change the system clock and its settings
|
---|
[cba2d4e] | 908 | </para>
|
---|
| 909 | <indexterm zone="ch-system-systemd timedatectl">
|
---|
| 910 | <primary sortas="b-timedatectl">timedatectl</primary>
|
---|
[f896e21c] | 911 | </indexterm>
|
---|
| 912 | </listitem>
|
---|
| 913 | </varlistentry>
|
---|
| 914 |
|
---|
| 915 | <varlistentry id="udevadm">
|
---|
| 916 | <term><command>udevadm</command></term>
|
---|
| 917 | <listitem>
|
---|
[d672ab7] | 918 | <para>Is a generic udev administration tool which controls the udevd
|
---|
[69854d2a] | 919 | daemon, provides info from the udev hardware database, monitors
|
---|
[d672ab7] | 920 | uevents, waits for uevents to finish, tests udev configuration, and
|
---|
[6dfcfecc] | 921 | triggers uevents for a given device</para>
|
---|
[cba2d4e] | 922 | <indexterm zone="ch-system-systemd udevadm">
|
---|
[f896e21c] | 923 | <primary sortas="b-udevadm">udevadm</primary>
|
---|
| 924 | </indexterm>
|
---|
| 925 | </listitem>
|
---|
| 926 | </varlistentry>
|
---|
| 927 |
|
---|
[cba2d4e] | 928 | <varlistentry id="libsystemd">
|
---|
| 929 | <term><filename class="libraryfile">libsystemd</filename></term>
|
---|
[f896e21c] | 930 | <listitem>
|
---|
[6dfcfecc] | 931 | <para>Is the main systemd utility library</para>
|
---|
[cba2d4e] | 932 | <indexterm zone="ch-system-systemd libsystemd">
|
---|
| 933 | <primary sortas="c-libsystemd">libsystemd</primary>
|
---|
[f896e21c] | 934 | </indexterm>
|
---|
| 935 | </listitem>
|
---|
| 936 | </varlistentry>
|
---|
| 937 |
|
---|
| 938 | <varlistentry id="libudev">
|
---|
| 939 | <term><filename class="libraryfile">libudev</filename></term>
|
---|
| 940 | <listitem>
|
---|
[6dfcfecc] | 941 | <para>Is a library to access Udev device information</para>
|
---|
[cba2d4e] | 942 | <indexterm zone="ch-system-systemd libudev">
|
---|
[f896e21c] | 943 | <primary sortas="c-libudev">libudev</primary>
|
---|
| 944 | </indexterm>
|
---|
| 945 | </listitem>
|
---|
| 946 | </varlistentry>
|
---|
| 947 |
|
---|
| 948 | </variablelist>
|
---|
| 949 |
|
---|
| 950 | </sect2>
|
---|
| 951 |
|
---|
| 952 | </sect1>
|
---|