[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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| 34 | <seg>&systemd-ch6-sbu;</seg>
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| 35 | <seg>&systemd-ch6-du;</seg>
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| 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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[b7b0eea] | 42 | <!--
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[777b5cb] | 43 | <para>First, apply a patch to fix various bugs since the release
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| 44 | of systemd-243.</para>
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[70dcd88] | 45 |
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[87b22cad] | 46 | <screen><userinput remap="pre">patch -Np1 -i ../systemd-&systemd-version;-consolidated_fixes-2.patch</userinput></screen>
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[b7b0eea] | 47 | -->
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[70dcd88] | 48 |
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[81ed05f] | 49 | <para>Create a symlink to work around missing xsltproc:</para>
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| 50 |
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[92c9489] | 51 | <screen><userinput remap="pre">ln -sf /tools/bin/true /usr/bin/xsltproc</userinput></screen>
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[e88a471b] | 52 |
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[fc199db] | 53 | <para>Set up the man pages:</para>
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| 54 |
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[f7cea72] | 55 | <screen><userinput remap="pre">tar -xf ../systemd-man-pages-&systemd-version;.tar.xz</userinput></screen>
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[1118b17] | 56 |
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[e88a471b] | 57 | <para>Remove tests that cannot be built in chroot:</para>
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| 58 |
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[c06f49a] | 59 | <screen><userinput remap="pre">sed '179,$ d' -i src/resolve/meson.build</userinput></screen>
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[b55310e] | 60 |
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[896e77e] | 61 | <para>Remove an unneeded group,
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| 62 | <systemitem class="groupname">render</systemitem>, from the default udev
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| 63 | rules:</para>
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| 64 |
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[b7b0eea] | 65 | <screen><userinput remap="pre">sed -i 's/GROUP="render", //' rules.d/50-udev-default.rules.in</userinput></screen>
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[896e77e] | 66 |
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[1118b17] | 67 | <para>Prepare systemd for compilation:</para>
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| 68 |
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[c556e59] | 69 | <screen><userinput remap="configure">mkdir -p build
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[04b2165] | 70 | cd build
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[fc199db] | 71 |
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[f878deb] | 72 | LANG=en_US.UTF-8 \
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| 73 | meson --prefix=/usr \
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| 74 | --sysconfdir=/etc \
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| 75 | --localstatedir=/var \
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| 76 | -Dc_args=-Wno-format-overflow \
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| 77 | -Dblkid=true \
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| 78 | -Dbuildtype=release \
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| 79 | -Ddefault-dnssec=no \
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| 80 | -Dfirstboot=false \
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| 81 | -Dinstall-tests=false \
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| 82 | -Dkmod-path=/bin/kmod \
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| 83 | -Dldconfig=false \
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| 84 | -Dmount-path=/bin/mount \
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| 85 | -Drootprefix= \
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| 86 | -Drootlibdir=/lib \
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| 87 | -Dsplit-usr=true \
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| 88 | -Dsulogin-path=/sbin/sulogin \
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| 89 | -Dsysusers=false \
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| 90 | -Dumount-path=/bin/umount \
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| 91 | -Db_lto=false \
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| 92 | -Drpmmacrosdir=no \
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| 93 | -Dhomed=false \
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| 94 | -Duserdb=false \
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| 95 | -Dman=true \
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[fc199db] | 96 | ..</userinput></screen>
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[cba2d4e] | 97 |
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| 98 | <variablelist>
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[81ed05f] | 99 | <title>The meaning of the meson options:</title>
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[cba2d4e] | 100 |
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[f878deb] | 101 | <varlistentry>
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| 102 | <term><parameter>-Dc_args=-Wno-format-overflow</parameter></term>
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| 103 | <listitem>
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| 104 | <para>The defaults flags passed to gcc contain
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| 105 | <parameter>-Werror=format-overflow</parameter>, which generates
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| 106 | an error with GCC 10. Passing this parameter prevents the error
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| 107 | from occuring.</para>
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| 108 | </listitem>
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| 109 | </varlistentry>
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| 110 |
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[cba2d4e] | 111 | <varlistentry>
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[81ed05f] | 112 | <term><parameter>-D*-path=*</parameter></term>
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[cba2d4e] | 113 | <listitem>
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[81ed05f] | 114 | <para>These switches provide location of binaries needed by
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| 115 | systemd at runtime that have not yet been installed, or who's
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| 116 | pkgconfig files are currently only in
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| 117 | <filename>/tools/lib/pkgconfig</filename>.</para>
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[cba2d4e] | 118 | </listitem>
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| 119 | </varlistentry>
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| 120 |
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| 121 | <varlistentry>
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[81ed05f] | 122 | <term><parameter>-Ddefault-dnssec=no</parameter></term>
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[cba2d4e] | 123 | <listitem>
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[81ed05f] | 124 | <para>This switch turns off the experimental DNSSEC support.</para>
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[cba2d4e] | 125 | </listitem>
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| 126 | </varlistentry>
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| 127 |
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| 128 | <varlistentry>
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[81ed05f] | 129 | <term><parameter>-Dfirstboot=false</parameter></term>
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[cba2d4e] | 130 | <listitem>
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[81ed05f] | 131 | <para>This switch prevents installation of systemd
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| 132 | services responsible for setting up the system for
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| 133 | the first time. They are not useful for LFS because
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| 134 | everything is done manually.</para>
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[cba2d4e] | 135 | </listitem>
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| 136 | </varlistentry>
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| 137 |
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[e88a471b] | 138 | <varlistentry>
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| 139 | <term><parameter>-Dinstall-tests=false</parameter></term>
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| 140 | <listitem>
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| 141 | <para>This switch prevents installation of the compiled tests.</para>
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| 142 | </listitem>
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| 143 | </varlistentry>
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| 144 |
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[cba2d4e] | 145 | <varlistentry>
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[0d84af1] | 146 | <term><parameter>-Dldconfig=false</parameter></term>
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[cba2d4e] | 147 | <listitem>
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[0d84af1] | 148 | <para>This switch prevents installation of a systemd unit that runs
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| 149 | <command>ldconfig</command> at boot, which is not useful for source
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| 150 | distributions such as LFS and makes the boot time longer. Remove it
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| 151 | if the described feature is desired.</para>
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[cba2d4e] | 152 | </listitem>
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| 153 | </varlistentry>
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| 154 |
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| 155 | <varlistentry>
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[81ed05f] | 156 | <term><parameter>-Droot*</parameter></term>
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[cba2d4e] | 157 | <listitem>
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[81ed05f] | 158 | <para>These switches ensure that core programs and
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| 159 | shared libraries are installed in the subdirectories
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| 160 | of the root partition.</para>
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[1118b17] | 161 | </listitem>
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| 162 | </varlistentry>
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| 163 |
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| 164 | <varlistentry>
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[81ed05f] | 165 | <term><parameter>-Dsplit-usr=true</parameter></term>
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[1118b17] | 166 | <listitem>
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[81ed05f] | 167 | <para>This switch ensures that systemd will work on
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| 168 | systems where /bin, /lib and /sbin directories are not
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| 169 | symlinks to their /usr counterparts.</para>
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[1118b17] | 170 | </listitem>
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| 171 | </varlistentry>
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| 172 |
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| 173 | <varlistentry>
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[81ed05f] | 174 | <term><parameter>-Dsysusers=false</parameter></term>
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[1118b17] | 175 | <listitem>
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| 176 | <para>This switch prevents installation of systemd
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| 177 | services responsible for setting up the
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| 178 | <filename>/etc/group</filename> and
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| 179 | <filename>/etc/passwd</filename> files. Both files
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[0d84af1] | 180 | were created earlier in this chapter.</para>
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[cba2d4e] | 181 | </listitem>
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| 182 | </varlistentry>
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| 183 |
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[c556e59] | 184 | <varlistentry>
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| 185 | <term><parameter>-Drpmmacrosdir=no</parameter></term>
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| 186 | <listitem>
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| 187 | <para>This switch disables installation of RPM Macros
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| 188 | for use with systemd because LFS does not support RPM.</para>
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| 189 | </listitem>
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| 190 | </varlistentry>
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[c06f49a] | 191 |
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| 192 | <varlistentry>
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| 193 | <term><parameter>-D{userdb,homed}=false</parameter></term>
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| 194 | <listitem>
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| 195 | <para>Remove two daemons that have dependencies that do not fit
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| 196 | the scope of LFS.</para>
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| 197 | </listitem>
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| 198 | </varlistentry>
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| 199 |
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[cba2d4e] | 200 | </variablelist>
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| 201 |
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| 202 | <para>Compile the package:</para>
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| 203 |
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[fc199db] | 204 | <screen><userinput remap="make">LANG=en_US.UTF-8 ninja</userinput></screen>
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[81ed05f] | 205 | <!--
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| 206 | <para>To test the package, execute the following command:</para>
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[f896e21c] | 207 |
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[81ed05f] | 208 | <screen><userinput remap="test">LANG=en_US.UTF-8 ninja test</userinput></screen>
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| 209 | -->
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[f896e21c] | 210 | <para>Install the package:</para>
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| 211 |
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[81ed05f] | 212 | <screen><userinput remap="install">LANG=en_US.UTF-8 ninja install</userinput></screen>
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[cba2d4e] | 213 |
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[c556e59] | 214 | <para>Remove an unnecessary symbolic link:</para>
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| 215 |
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| 216 | <screen><userinput remap="install">rm -f /usr/bin/xsltproc</userinput></screen>
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| 217 |
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[cba2d4e] | 218 | <para>Create the <filename>/etc/machine-id</filename> file needed by
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[1118b17] | 219 | <command>systemd-journald</command>:</para>
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[053b206] | 220 |
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[15f0f21] | 221 | <screen><userinput remap="adjust">systemd-machine-id-setup</userinput></screen>
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[cba2d4e] | 222 |
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[8a0d39ee] | 223 | <para>Setup the basic target structure:</para>
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| 224 |
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| 225 | <screen><userinput remap="adjust">systemctl preset-all</userinput></screen>
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[777b5cb] | 226 |
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| 227 | <para>Disable a service that is known to cause problems with systems that
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| 228 | use a network configuration other than what is provided by
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| 229 | systemd-networkd:</para>
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| 230 | <!-- Observed halting startup with dhcpcd handling the primary NIC -->
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| 231 |
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| 232 | <screen><userinput remap="adjust">systemctl disable systemd-time-wait-sync.service</userinput></screen>
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| 233 |
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| 234 | <para>Prevent systemd from resetting the maximum PID value which causes
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| 235 | some problems with packages and units in BLFS:</para>
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[c06f49a] | 236 |
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| 237 |
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| 238 | <screen><userinput remap="adjust">rm -f /usr/lib/sysctl.d/50-pid-max.conf</userinput></screen>
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[777b5cb] | 239 |
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[f18ed3d] | 240 | <!--
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[4a7709f] | 241 | <para>Prevent systemd from creating <filename>/run/nologin</filename>
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[4a18f0bd] | 242 | to allow unprivileged user logins without
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[9220470] | 243 | <application>systemd-logind</application>:</para>
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| 244 |
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[4a18f0bd] | 245 | <screen><userinput remap="adjust">rm -f /usr/lib/tmpfiles.d/systemd-nologin.conf</userinput></screen>
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[f18ed3d] | 246 | -->
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[f896e21c] | 247 | </sect2>
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| 248 |
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[cba2d4e] | 249 | <sect2 id="contents-systemd" role="content">
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[1118b17] | 250 | <title>Contents of systemd</title>
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[f896e21c] | 251 |
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| 252 | <segmentedlist>
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| 253 | <segtitle>Installed programs</segtitle>
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| 254 | <segtitle>Installed libraries</segtitle>
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| 255 | <segtitle>Installed directories</segtitle>
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| 256 |
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| 257 | <seglistitem>
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[78cc3be] | 258 | <seg>bootctl, busctl, coredumpctl, halt (symlink to systemctl),
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| 259 | hostnamectl, init, journalctl, kernel-install, localectl, loginctl,
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| 260 | machinectl, networkctl, portablectl, poweroff (symlink to
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| 261 | systemctl), reboot (symlink to systemctl), resolvconf (symlink to
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| 262 | resolvectl), resolvectl, runlevel (symlink to systemctl), shutdown
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| 263 | (symlink to systemctl), systemctl, systemd-analyze,
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[1118b17] | 264 | systemd-ask-password, systemd-cat, systemd-cgls, systemd-cgtop,
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| 265 | systemd-delta, systemd-detect-virt, systemd-escape, systemd-hwdb,
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[78cc3be] | 266 | systemd-id128, systemd-inhibit, systemd-machine-id-setup,
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| 267 | systemd-mount, systemd-notify, systemd-nspawn, systemd-path,
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[c06f49a] | 268 | systemd-repart, systemd-resolve (symlink to resolvectl), systemd-run,
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[78cc3be] | 269 | systemd-socket-activate, systemd-stdio-bridge, systemd-tmpfiles,
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| 270 | systemd-tty-ask-password-agent, systemd-umount (symlink to
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| 271 | systemd-mount), telinit (symlink to systemctl), timedatectl, and
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| 272 | udevadm</seg>
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[1118b17] | 273 | <seg>libnss_myhostname.so.2, libnss_mymachines.so.2,
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[78cc3be] | 274 | libnss_resolve.so.2, libnss_systemd.so.2,
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| 275 | libsystemd.so, libsystemd-shared-&systemd-version;.so (in /lib/systemd),
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[a840e59] | 276 | and libudev.so</seg>
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[cba2d4e] | 277 | <seg>/etc/binfmt.d, /etc/init.d, /etc/kernel, /etc/modules-load.d,
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| 278 | /etc/sysctl.d, /etc/systemd, /etc/tmpfiles.d, /etc/udev,
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| 279 | /etc/xdg/systemd, /lib/systemd, /lib/udev, /usr/include/systemd,
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| 280 | /usr/lib/binfmt.d, /usr/lib/kernel, /usr/lib/modules-load.d,
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| 281 | /usr/lib/sysctl.d, /usr/lib/systemd, /usr/lib/tmpfiles.d,
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[1118b17] | 282 | /usr/share/doc/systemd-&systemd-version;, /usr/share/factory,
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| 283 | /usr/share/systemd, /var/lib/systemd, and /var/log/journal</seg>
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[f896e21c] | 284 | </seglistitem>
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| 285 | </segmentedlist>
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| 286 |
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| 287 | <variablelist>
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| 288 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 289 | <?dbfo list-presentation="list"?>
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| 290 | <?dbhtml list-presentation="table"?>
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| 291 |
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[cba2d4e] | 292 | <varlistentry id="bootctl">
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| 293 | <term><command>bootctl</command></term>
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| 294 | <listitem>
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[0d84af1] | 295 | <para>Used to query the firmware and boot manager settings</para>
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[cba2d4e] | 296 | <indexterm zone="ch-system-systemd bootctl">
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| 297 | <primary sortas="b-bootctl">bootctl</primary>
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| 298 | </indexterm>
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| 299 | </listitem>
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| 300 | </varlistentry>
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| 301 |
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| 302 | <varlistentry id="busctl">
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| 303 | <term><command>busctl</command></term>
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| 304 | <listitem>
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[1118b17] | 305 | <para>Used to introspect and monitor the D-Bus bus</para>
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[cba2d4e] | 306 | <indexterm zone="ch-system-systemd busctl">
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| 307 | <primary sortas="b-busctl">busctl</primary>
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| 308 | </indexterm>
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| 309 | </listitem>
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| 310 | </varlistentry>
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| 311 |
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[1118b17] | 312 | <varlistentry id="coredumpctl">
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| 313 | <term><command>coredumpctl</command></term>
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| 314 | <listitem>
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[3553330] | 315 | <para>Used to retrieve coredumps from the systemd journal</para>
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[1118b17] | 316 | <indexterm zone="ch-system-systemd coredumpctl">
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| 317 | <primary sortas="b-coredumpctl">coredumpctl</primary>
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| 318 | </indexterm>
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| 319 | </listitem>
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| 320 | </varlistentry>
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| 321 |
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[cba2d4e] | 322 | <varlistentry id="halt">
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| 323 | <term><command>halt</command></term>
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| 324 | <listitem>
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| 325 | <para>Normally invokes <command>shutdown</command> with the
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| 326 | <parameter>-h</parameter> option, except when already in run-level 0,
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| 327 | then it tells the kernel to halt the system; it notes in the
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| 328 | file <filename>/var/log/wtmp</filename> that the system is being
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[1118b17] | 329 | brought down</para>
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[cba2d4e] | 330 | <indexterm zone="ch-system-systemd halt">
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| 331 | <primary sortas="b-halt">halt</primary>
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| 332 | </indexterm>
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| 333 | </listitem>
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| 334 | </varlistentry>
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| 335 |
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| 336 | <varlistentry id="hostnamectl">
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| 337 | <term><command>hostnamectl</command></term>
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| 338 | <listitem>
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[1118b17] | 339 | <para>Used to query and change the system hostname and related
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| 340 | settings</para>
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[cba2d4e] | 341 | <indexterm zone="ch-system-systemd hostnamectl">
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| 342 | <primary sortas="b-hostnamectl">hostnamectl</primary>
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| 343 | </indexterm>
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| 344 | </listitem>
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| 345 | </varlistentry>
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| 346 |
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| 347 | <varlistentry id="init">
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| 348 | <term><command>init</command></term>
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| 349 | <listitem>
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| 350 | <para>The first process to be started when the kernel has initialized
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[0d84af1] | 351 | the hardware which takes over the boot process and starts all
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| 352 | processes according to its configuration files</para>
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[cba2d4e] | 353 | <indexterm zone="ch-system-systemd init">
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| 354 | <primary sortas="b-init">init</primary>
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| 355 | </indexterm>
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| 356 | </listitem>
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| 357 | </varlistentry>
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| 358 |
|
---|
| 359 | <varlistentry id="journalctl">
|
---|
| 360 | <term><command>journalctl</command></term>
|
---|
| 361 | <listitem>
|
---|
[0d84af1] | 362 | <para>Used to query the contents of the systemd journal</para>
|
---|
[cba2d4e] | 363 | <indexterm zone="ch-system-systemd journalctl">
|
---|
| 364 | <primary sortas="b-journalctl">journalctl</primary>
|
---|
| 365 | </indexterm>
|
---|
| 366 | </listitem>
|
---|
| 367 | </varlistentry>
|
---|
| 368 |
|
---|
| 369 | <varlistentry id="kernel-install">
|
---|
| 370 | <term><command>kernel-install</command></term>
|
---|
| 371 | <listitem>
|
---|
[1118b17] | 372 | <para>Used to add and remove kernel and initramfs images to and
|
---|
| 373 | from /boot</para>
|
---|
[cba2d4e] | 374 | <indexterm zone="ch-system-systemd kernel-install">
|
---|
| 375 | <primary sortas="b-kernel-install">kernel-install</primary>
|
---|
| 376 | </indexterm>
|
---|
| 377 | </listitem>
|
---|
| 378 | </varlistentry>
|
---|
| 379 |
|
---|
| 380 | <varlistentry id="localectl">
|
---|
| 381 | <term><command>localectl</command></term>
|
---|
| 382 | <listitem>
|
---|
[1118b17] | 383 | <para>Used to query and change the system locale and keyboard layout
|
---|
| 384 | settings</para>
|
---|
[cba2d4e] | 385 | <indexterm zone="ch-system-systemd localectl">
|
---|
| 386 | <primary sortas="b-localectl">localectl</primary>
|
---|
| 387 | </indexterm>
|
---|
| 388 | </listitem>
|
---|
| 389 | </varlistentry>
|
---|
| 390 |
|
---|
| 391 | <varlistentry id="loginctl">
|
---|
| 392 | <term><command>loginctl</command></term>
|
---|
| 393 | <listitem>
|
---|
[1118b17] | 394 | <para>Used to introspect and control the state of the systemd Login
|
---|
| 395 | Manager</para>
|
---|
[cba2d4e] | 396 | <indexterm zone="ch-system-systemd loginctl">
|
---|
| 397 | <primary sortas="b-loginctl">loginctl</primary>
|
---|
| 398 | </indexterm>
|
---|
| 399 | </listitem>
|
---|
| 400 | </varlistentry>
|
---|
| 401 |
|
---|
| 402 | <varlistentry id="machinectl">
|
---|
| 403 | <term><command>machinectl</command></term>
|
---|
| 404 | <listitem>
|
---|
[1118b17] | 405 | <para>Used to introspect and control the state of the systemd Virtual
|
---|
[cba2d4e] | 406 | Machine and Container Registration Manager</para>
|
---|
| 407 | <indexterm zone="ch-system-systemd machinectl">
|
---|
| 408 | <primary sortas="b-machinectl">machinectl</primary>
|
---|
| 409 | </indexterm>
|
---|
| 410 | </listitem>
|
---|
| 411 | </varlistentry>
|
---|
| 412 |
|
---|
[1118b17] | 413 | <varlistentry id="networkctl">
|
---|
| 414 | <term><command>networkctl</command></term>
|
---|
| 415 | <listitem>
|
---|
| 416 | <para>Used to introspect the state of the network links as seen by
|
---|
| 417 | systemd-networkd</para>
|
---|
| 418 | <indexterm zone="ch-system-systemd networkctl">
|
---|
| 419 | <primary sortas="b-networkctl">networkctl</primary>
|
---|
| 420 | </indexterm>
|
---|
| 421 | </listitem>
|
---|
| 422 | </varlistentry>
|
---|
| 423 |
|
---|
[78cc3be] | 424 | <varlistentry id="portablectl">
|
---|
| 425 | <term><command>portablectl</command></term>
|
---|
| 426 | <listitem>
|
---|
| 427 | <para>Used to attach or detach portable services from the local
|
---|
| 428 | system</para>
|
---|
| 429 | <indexterm zone="ch-system-systemd portablectl">
|
---|
| 430 | <primary sortas="b-portablectl">portablectl</primary>
|
---|
| 431 | </indexterm>
|
---|
| 432 | </listitem>
|
---|
| 433 | </varlistentry>
|
---|
| 434 |
|
---|
[cba2d4e] | 435 | <varlistentry id="poweroff">
|
---|
| 436 | <term><command>poweroff</command></term>
|
---|
| 437 | <listitem>
|
---|
| 438 | <para>Tells the kernel to halt the system and switch off the computer
|
---|
[1118b17] | 439 | (see <command>halt</command>)</para>
|
---|
[cba2d4e] | 440 | <indexterm zone="ch-system-systemd poweroff">
|
---|
| 441 | <primary sortas="b-poweroff">poweroff</primary>
|
---|
| 442 | </indexterm>
|
---|
| 443 | </listitem>
|
---|
| 444 | </varlistentry>
|
---|
| 445 |
|
---|
| 446 | <varlistentry id="reboot">
|
---|
| 447 | <term><command>reboot</command></term>
|
---|
[f896e21c] | 448 | <listitem>
|
---|
[cba2d4e] | 449 | <para>Tells the kernel to reboot the system (see
|
---|
[1118b17] | 450 | <command>halt</command>)</para>
|
---|
[cba2d4e] | 451 | <indexterm zone="ch-system-systemd reboot">
|
---|
| 452 | <primary sortas="b-reboot">reboot</primary>
|
---|
[f896e21c] | 453 | </indexterm>
|
---|
| 454 | </listitem>
|
---|
| 455 | </varlistentry>
|
---|
| 456 |
|
---|
[78cc3be] | 457 | <varlistentry id="resolvconf">
|
---|
| 458 | <term><command>resolvconf</command></term>
|
---|
| 459 | <listitem>
|
---|
| 460 | <para>Register DNS server and domain configuration with
|
---|
[93058448] | 461 | <command>systemd-resolved</command></para>
|
---|
[78cc3be] | 462 | <indexterm zone="ch-system-systemd resolvconf">
|
---|
| 463 | <primary sortas="b-resolvconf">resolvconf</primary>
|
---|
| 464 | </indexterm>
|
---|
| 465 | </listitem>
|
---|
| 466 | </varlistentry>
|
---|
| 467 |
|
---|
| 468 | <varlistentry id="resolvectl">
|
---|
| 469 | <term><command>resolvectl</command></term>
|
---|
| 470 | <listitem>
|
---|
| 471 | <para>Send control commands to the network name resolution
|
---|
| 472 | manager, or resolve domain names, IPv4 and IPv6 addresses,
|
---|
| 473 | DNS records, and services.</para>
|
---|
| 474 | <indexterm zone="ch-system-systemd resolvectl">
|
---|
| 475 | <primary sortas="b-resolvectl">resolvectl</primary>
|
---|
| 476 | </indexterm>
|
---|
| 477 | </listitem>
|
---|
| 478 | </varlistentry>
|
---|
| 479 |
|
---|
[cba2d4e] | 480 | <varlistentry id="runlevel">
|
---|
| 481 | <term><command>runlevel</command></term>
|
---|
[f896e21c] | 482 | <listitem>
|
---|
[cba2d4e] | 483 | <para>Reports the previous and the current run-level, as noted in the
|
---|
[1118b17] | 484 | last run-level record in <filename>/var/run/utmp</filename></para>
|
---|
[cba2d4e] | 485 | <indexterm zone="ch-system-systemd runlevel">
|
---|
| 486 | <primary sortas="b-runlevel">runlevel</primary>
|
---|
[f896e21c] | 487 | </indexterm>
|
---|
| 488 | </listitem>
|
---|
| 489 | </varlistentry>
|
---|
| 490 |
|
---|
[cba2d4e] | 491 | <varlistentry id="shutdown">
|
---|
| 492 | <term><command>shutdown</command></term>
|
---|
[f896e21c] | 493 | <listitem>
|
---|
[cba2d4e] | 494 | <para>Brings the system down in a secure way, signaling all processes
|
---|
[1118b17] | 495 | and notifying all logged-in users</para>
|
---|
[cba2d4e] | 496 | <indexterm zone="ch-system-systemd shutdown">
|
---|
| 497 | <primary sortas="b-shutdown">shutdown</primary>
|
---|
[f896e21c] | 498 | </indexterm>
|
---|
| 499 | </listitem>
|
---|
| 500 | </varlistentry>
|
---|
| 501 |
|
---|
[cba2d4e] | 502 | <varlistentry id="systemctl">
|
---|
| 503 | <term><command>systemctl</command></term>
|
---|
[f896e21c] | 504 | <listitem>
|
---|
[1118b17] | 505 | <para>Used to introspect and control the state of the systemd system
|
---|
| 506 | and service manager</para>
|
---|
[cba2d4e] | 507 | <indexterm zone="ch-system-systemd systemctl">
|
---|
| 508 | <primary sortas="b-systemctl">systemctl</primary>
|
---|
| 509 | </indexterm>
|
---|
| 510 | </listitem>
|
---|
| 511 | </varlistentry>
|
---|
| 512 |
|
---|
| 513 | <varlistentry id="systemd-analyze">
|
---|
| 514 | <term><command>systemd-analyze</command></term>
|
---|
| 515 | <listitem>
|
---|
[1118b17] | 516 | <para>Used to determine system boot-up performance of the current
|
---|
| 517 | boot</para>
|
---|
[cba2d4e] | 518 | <indexterm zone="ch-system-systemd systemd-analyze">
|
---|
| 519 | <primary sortas="b-systemd-analyze">systemd-analyze</primary>
|
---|
| 520 | </indexterm>
|
---|
| 521 | </listitem>
|
---|
| 522 | </varlistentry>
|
---|
| 523 |
|
---|
| 524 | <varlistentry id="systemd-ask-password">
|
---|
| 525 | <term><command>systemd-ask-password</command></term>
|
---|
| 526 | <listitem>
|
---|
[1118b17] | 527 | <para>Used to query a system password or passphrase from the user,
|
---|
| 528 | using a question message specified on the command line</para>
|
---|
[cba2d4e] | 529 | <indexterm zone="ch-system-systemd systemd-ask-password">
|
---|
| 530 | <primary sortas="b-systemd-ask-password">systemd-ask-password</primary>
|
---|
| 531 | </indexterm>
|
---|
| 532 | </listitem>
|
---|
| 533 | </varlistentry>
|
---|
| 534 |
|
---|
| 535 | <varlistentry id="systemd-cat">
|
---|
| 536 | <term><command>systemd-cat</command></term>
|
---|
| 537 | <listitem>
|
---|
[1118b17] | 538 | <para>Used to connect STDOUT and STDERR of a process with the Journal
|
---|
[cba2d4e] | 539 | </para>
|
---|
| 540 | <indexterm zone="ch-system-systemd systemd-cat">
|
---|
| 541 | <primary sortas="b-systemd-cat">systemd-cat</primary>
|
---|
| 542 | </indexterm>
|
---|
| 543 | </listitem>
|
---|
| 544 | </varlistentry>
|
---|
| 545 |
|
---|
| 546 | <varlistentry id="systemd-cgls">
|
---|
| 547 | <term><command>systemd-cgls</command></term>
|
---|
| 548 | <listitem>
|
---|
[1118b17] | 549 | <para>Recursively shows the contents of the selected Linux control
|
---|
| 550 | group hierarchy in a tree</para>
|
---|
[cba2d4e] | 551 | <indexterm zone="ch-system-systemd systemd-cgls">
|
---|
| 552 | <primary sortas="b-systemd-cgls">systemd-cgls</primary>
|
---|
| 553 | </indexterm>
|
---|
| 554 | </listitem>
|
---|
| 555 | </varlistentry>
|
---|
| 556 |
|
---|
| 557 | <varlistentry id="systemd-cgtop">
|
---|
| 558 | <term><command>systemd-cgtop</command></term>
|
---|
| 559 | <listitem>
|
---|
[1118b17] | 560 | <para>Shows the top control groups of the local Linux control group
|
---|
| 561 | hierarchy, ordered by their CPU, memory and disk I/O load</para>
|
---|
[cba2d4e] | 562 | <indexterm zone="ch-system-systemd systemd-cgtop">
|
---|
| 563 | <primary sortas="b-systemd-cgtop">systemd-cgtop</primary>
|
---|
| 564 | </indexterm>
|
---|
| 565 | </listitem>
|
---|
| 566 | </varlistentry>
|
---|
| 567 |
|
---|
| 568 | <varlistentry id="systemd-delta">
|
---|
| 569 | <term><command>systemd-delta</command></term>
|
---|
| 570 | <listitem>
|
---|
[1118b17] | 571 | <para>Used to identify and compare configuration files in
|
---|
[cba2d4e] | 572 | <filename class="directory">/etc</filename> that override default
|
---|
[1118b17] | 573 | counterparts in <filename class="directory">/usr</filename></para>
|
---|
[cba2d4e] | 574 | <indexterm zone="ch-system-systemd systemd-delta">
|
---|
| 575 | <primary sortas="b-systemd-delta">systemd-delta</primary>
|
---|
| 576 | </indexterm>
|
---|
| 577 | </listitem>
|
---|
| 578 | </varlistentry>
|
---|
| 579 |
|
---|
| 580 | <varlistentry id="systemd-detect-virt">
|
---|
| 581 | <term><command>systemd-detect-virt</command></term>
|
---|
| 582 | <listitem>
|
---|
[1118b17] | 583 | <para>Detects execution in a virtualized environment</para>
|
---|
[cba2d4e] | 584 | <indexterm zone="ch-system-systemd systemd-detect-virt">
|
---|
| 585 | <primary sortas="b-systemd-detect-virt">systemd-detect-virt</primary>
|
---|
| 586 | </indexterm>
|
---|
| 587 | </listitem>
|
---|
| 588 | </varlistentry>
|
---|
| 589 |
|
---|
[1118b17] | 590 | <varlistentry id="systemd-escape">
|
---|
| 591 | <term><command>systemd-escape</command></term>
|
---|
| 592 | <listitem>
|
---|
| 593 | <para>Used to escape strings for inclusion in systemd unit
|
---|
| 594 | names</para>
|
---|
| 595 | <indexterm zone="ch-system-systemd systemd-escape">
|
---|
| 596 | <primary sortas="b-systemd-escape">systemd-escape</primary>
|
---|
| 597 | </indexterm>
|
---|
| 598 | </listitem>
|
---|
| 599 | </varlistentry>
|
---|
| 600 |
|
---|
| 601 | <varlistentry id="systemd-hwdb">
|
---|
| 602 | <term><command>systemd-hwdb</command></term>
|
---|
| 603 | <listitem>
|
---|
| 604 | <para>Used to manage hardware database (hwdb)</para>
|
---|
| 605 | <indexterm zone="ch-system-systemd systemd-hwdb">
|
---|
| 606 | <primary sortas="b-systemd-hwdb">systemd-hwdb</primary>
|
---|
| 607 | </indexterm>
|
---|
| 608 | </listitem>
|
---|
| 609 | </varlistentry>
|
---|
| 610 |
|
---|
[78cc3be] | 611 | <varlistentry id="systemd-id128">
|
---|
| 612 | <term><command>systemd-id128</command></term>
|
---|
| 613 | <listitem>
|
---|
| 614 | <para>Generate and print id128 strings</para>
|
---|
| 615 | <indexterm zone="ch-system-systemd systemd-id128">
|
---|
| 616 | <primary sortas="b-systemd-id128">systemd-id128</primary>
|
---|
| 617 | </indexterm>
|
---|
| 618 | </listitem>
|
---|
| 619 | </varlistentry>
|
---|
| 620 |
|
---|
[cba2d4e] | 621 | <varlistentry id="systemd-inhibit">
|
---|
| 622 | <term><command>systemd-inhibit</command></term>
|
---|
| 623 | <listitem>
|
---|
[1118b17] | 624 | <para>Used to execute a program with a shutdown, sleep or idle
|
---|
| 625 | inhibitor lock taken</para>
|
---|
[cba2d4e] | 626 | <indexterm zone="ch-system-systemd systemd-inhibit">
|
---|
| 627 | <primary sortas="b-systemd-inhibit">systemd-inhibit</primary>
|
---|
| 628 | </indexterm>
|
---|
| 629 | </listitem>
|
---|
| 630 | </varlistentry>
|
---|
| 631 |
|
---|
| 632 | <varlistentry id="systemd-machine-id-setup">
|
---|
| 633 | <term><command>systemd-machine-id-setup</command></term>
|
---|
| 634 | <listitem>
|
---|
[1118b17] | 635 | <para>Used by system installer tools to initialize the machine ID
|
---|
| 636 | stored in <filename>/etc/machine-id</filename> at install time with a
|
---|
| 637 | randomly generated ID</para>
|
---|
[cba2d4e] | 638 | <indexterm zone="ch-system-systemd systemd-machine-id-setup">
|
---|
| 639 | <primary sortas="b-systemd-machine-id-setup">systemd-machine-id-setup</primary>
|
---|
| 640 | </indexterm>
|
---|
| 641 | </listitem>
|
---|
| 642 | </varlistentry>
|
---|
| 643 |
|
---|
[13c8b42] | 644 | <varlistentry id="systemd-mount">
|
---|
| 645 | <term><command>systemd-mount</command></term>
|
---|
| 646 | <listitem>
|
---|
[0d84af1] | 647 | <para>A tool to temporarily mount or auto-mount a drive.</para>
|
---|
[13c8b42] | 648 | <indexterm zone="ch-system-systemd systemd-mount">
|
---|
| 649 | <primary sortas="b-systemd-mount">systemd-mount</primary>
|
---|
| 650 | </indexterm>
|
---|
| 651 | </listitem>
|
---|
| 652 | </varlistentry>
|
---|
| 653 |
|
---|
[cba2d4e] | 654 | <varlistentry id="systemd-notify">
|
---|
| 655 | <term><command>systemd-notify</command></term>
|
---|
| 656 | <listitem>
|
---|
[1118b17] | 657 | <para>Used by daemon scripts to notify the init system about status
|
---|
| 658 | changes</para>
|
---|
[cba2d4e] | 659 | <indexterm zone="ch-system-systemd systemd-notify">
|
---|
| 660 | <primary sortas="b-systemd-notify">systemd-notify</primary>
|
---|
| 661 | </indexterm>
|
---|
| 662 | </listitem>
|
---|
| 663 | </varlistentry>
|
---|
| 664 |
|
---|
| 665 | <varlistentry id="systemd-nspawn">
|
---|
| 666 | <term><command>systemd-nspawn</command></term>
|
---|
| 667 | <listitem>
|
---|
[1118b17] | 668 | <para>Used to run a command or OS in a light-weight namespace
|
---|
| 669 | container</para>
|
---|
[cba2d4e] | 670 | <indexterm zone="ch-system-systemd systemd-nspawn">
|
---|
| 671 | <primary sortas="b-systemd-nspawn">systemd-nspawn</primary>
|
---|
| 672 | </indexterm>
|
---|
| 673 | </listitem>
|
---|
| 674 | </varlistentry>
|
---|
| 675 |
|
---|
[1118b17] | 676 | <varlistentry id="systemd-path">
|
---|
| 677 | <term><command>systemd-path</command></term>
|
---|
| 678 | <listitem>
|
---|
| 679 | <para>Used to query system and user paths</para>
|
---|
| 680 | <indexterm zone="ch-system-systemd systemd-path">
|
---|
| 681 | <primary sortas="b-systemd-path">systemd-path</primary>
|
---|
| 682 | </indexterm>
|
---|
| 683 | </listitem>
|
---|
| 684 | </varlistentry>
|
---|
| 685 |
|
---|
[c06f49a] | 686 | <varlistentry id="systemd-repart">
|
---|
| 687 | <term><command>systemd-repart</command></term>
|
---|
| 688 | <listitem>
|
---|
| 689 | <para>Used go grow and add partitions to a partition table when
|
---|
| 690 | systemd is used in an OS image (e.g. a container).</para>
|
---|
| 691 | <indexterm zone="ch-system-systemd systemd-repart">
|
---|
| 692 | <primary sortas="b-systemd-repart">systemd-repart</primary>
|
---|
| 693 | </indexterm>
|
---|
| 694 | </listitem>
|
---|
| 695 | </varlistentry>
|
---|
| 696 |
|
---|
[1118b17] | 697 | <varlistentry id="systemd-resolve">
|
---|
| 698 | <term><command>systemd-resolve</command></term>
|
---|
| 699 | <listitem>
|
---|
| 700 | <para>Used to resolve domain names, IPV4 and IPv6 addresses, DNS
|
---|
| 701 | resource records, and services</para>
|
---|
| 702 | <indexterm zone="ch-system-systemd systemd-resolve">
|
---|
| 703 | <primary sortas="b-systemd-resolve">systemd-resolve</primary>
|
---|
| 704 | </indexterm>
|
---|
| 705 | </listitem>
|
---|
| 706 | </varlistentry>
|
---|
| 707 |
|
---|
[cba2d4e] | 708 | <varlistentry id="systemd-run">
|
---|
| 709 | <term><command>systemd-run</command></term>
|
---|
| 710 | <listitem>
|
---|
[1118b17] | 711 | <para>Used to create and start a transient .service or a .scope unit
|
---|
| 712 | and run the specified command in it</para>
|
---|
[cba2d4e] | 713 | <indexterm zone="ch-system-systemd systemd-run">
|
---|
| 714 | <primary sortas="b-systemd-run">systemd-run</primary>
|
---|
| 715 | </indexterm>
|
---|
| 716 | </listitem>
|
---|
| 717 | </varlistentry>
|
---|
| 718 |
|
---|
[1118b17] | 719 | <!-- <varlistentry id="systemd-stdio-bridge">
|
---|
[cba2d4e] | 720 | <term><command>systemd-stdio-bridge</command></term>
|
---|
| 721 | <listitem>
|
---|
| 722 | <para>To be completed</para>
|
---|
| 723 | <indexterm zone="ch-system-systemd systemd-stdio-bridge">
|
---|
| 724 | <primary sortas="b-systemd-stdio-bridge">systemd-stdio-bridge</primary>
|
---|
| 725 | </indexterm>
|
---|
| 726 | </listitem>
|
---|
| 727 | </varlistentry> -->
|
---|
| 728 |
|
---|
[13c8b42] | 729 | <varlistentry id="systemd-socket-activate">
|
---|
| 730 | <term><command>systemd-socket-activate</command></term>
|
---|
| 731 | <listitem>
|
---|
[0d84af1] | 732 | <para>A tool to listen on socket devices and launch a process upon
|
---|
[13c8b42] | 733 | connection.</para>
|
---|
| 734 | <indexterm zone="ch-system-systemd systemd-socket-activate">
|
---|
| 735 | <primary sortas="b-systemd-socket-activate">systemd-socket-activate</primary>
|
---|
| 736 | </indexterm>
|
---|
| 737 | </listitem>
|
---|
| 738 | </varlistentry>
|
---|
| 739 |
|
---|
[cba2d4e] | 740 | <varlistentry id="systemd-tmpfiles">
|
---|
| 741 | <term><command>systemd-tmpfiles</command></term>
|
---|
| 742 | <listitem>
|
---|
[1118b17] | 743 | <para>Creates, deletes and cleans up volatile and temporary files and
|
---|
| 744 | directories, based on the configuration file format and location
|
---|
| 745 | specified in
|
---|
| 746 | <filename class="directory">tmpfiles.d</filename> directories</para>
|
---|
[cba2d4e] | 747 | <indexterm zone="ch-system-systemd systemd-tmpfiles">
|
---|
| 748 | <primary sortas="b-systemd-tmpfiles">systemd-tmpfiles</primary>
|
---|
| 749 | </indexterm>
|
---|
| 750 | </listitem>
|
---|
| 751 | </varlistentry>
|
---|
| 752 |
|
---|
[78cc3be] | 753 | <varlistentry id="systemd-umount">
|
---|
| 754 | <term><command>systemd-umount</command></term>
|
---|
| 755 | <listitem>
|
---|
| 756 | <para>Unmount mount points</para>
|
---|
| 757 | <indexterm zone="ch-system-systemd systemd-umount">
|
---|
| 758 | <primary sortas="b-systemd-umount">systemd-umount</primary>
|
---|
| 759 | </indexterm>
|
---|
| 760 | </listitem>
|
---|
| 761 | </varlistentry>
|
---|
| 762 |
|
---|
[cba2d4e] | 763 | <varlistentry id="systemd-tty-ask-password-agent">
|
---|
| 764 | <term><command>systemd-tty-ask-password-agent</command></term>
|
---|
| 765 | <listitem>
|
---|
[1118b17] | 766 | <para>Used to list or process pending systemd password requests</para>
|
---|
[cba2d4e] | 767 | <indexterm zone="ch-system-systemd systemd-tty-ask-password-agent">
|
---|
| 768 | <primary sortas="b-systemd-tty-ask-password-agent">systemd-tty-ask-password-agent</primary>
|
---|
| 769 | </indexterm>
|
---|
| 770 | </listitem>
|
---|
| 771 | </varlistentry>
|
---|
| 772 |
|
---|
| 773 | <varlistentry id="telinit">
|
---|
| 774 | <term><command>telinit</command></term>
|
---|
| 775 | <listitem>
|
---|
[1118b17] | 776 | <para>Tells <command>init</command> which run-level to change
|
---|
| 777 | to</para>
|
---|
[cba2d4e] | 778 | <indexterm zone="ch-system-systemd telinit">
|
---|
| 779 | <primary sortas="b-telinit">telinit</primary>
|
---|
| 780 | </indexterm>
|
---|
| 781 | </listitem>
|
---|
| 782 | </varlistentry>
|
---|
| 783 |
|
---|
| 784 | <varlistentry id="timedatectl">
|
---|
| 785 | <term><command>timedatectl</command></term>
|
---|
| 786 | <listitem>
|
---|
[1118b17] | 787 | <para>Used to query and change the system clock and its settings
|
---|
[cba2d4e] | 788 | </para>
|
---|
| 789 | <indexterm zone="ch-system-systemd timedatectl">
|
---|
| 790 | <primary sortas="b-timedatectl">timedatectl</primary>
|
---|
[f896e21c] | 791 | </indexterm>
|
---|
| 792 | </listitem>
|
---|
| 793 | </varlistentry>
|
---|
| 794 |
|
---|
| 795 | <varlistentry id="udevadm">
|
---|
| 796 | <term><command>udevadm</command></term>
|
---|
| 797 | <listitem>
|
---|
[0d84af1] | 798 | <para>Generic udev administration tool: controls the udevd daemon,
|
---|
[f896e21c] | 799 | provides info from the Udev database, monitors uevents, waits for
|
---|
[0d84af1] | 800 | uevents to finish, tests udev configuration, and triggers uevents
|
---|
[1118b17] | 801 | for a given device</para>
|
---|
[cba2d4e] | 802 | <indexterm zone="ch-system-systemd udevadm">
|
---|
[f896e21c] | 803 | <primary sortas="b-udevadm">udevadm</primary>
|
---|
| 804 | </indexterm>
|
---|
| 805 | </listitem>
|
---|
| 806 | </varlistentry>
|
---|
| 807 |
|
---|
[cba2d4e] | 808 | <varlistentry id="libsystemd">
|
---|
| 809 | <term><filename class="libraryfile">libsystemd</filename></term>
|
---|
[f896e21c] | 810 | <listitem>
|
---|
[0d84af1] | 811 | <para>The main systemd utility library</para>
|
---|
[cba2d4e] | 812 | <indexterm zone="ch-system-systemd libsystemd">
|
---|
| 813 | <primary sortas="c-libsystemd">libsystemd</primary>
|
---|
[f896e21c] | 814 | </indexterm>
|
---|
| 815 | </listitem>
|
---|
| 816 | </varlistentry>
|
---|
| 817 |
|
---|
| 818 | <varlistentry id="libudev">
|
---|
| 819 | <term><filename class="libraryfile">libudev</filename></term>
|
---|
| 820 | <listitem>
|
---|
[1118b17] | 821 | <para>A library to access Udev device information</para>
|
---|
[cba2d4e] | 822 | <indexterm zone="ch-system-systemd libudev">
|
---|
[f896e21c] | 823 | <primary sortas="c-libudev">libudev</primary>
|
---|
| 824 | </indexterm>
|
---|
| 825 | </listitem>
|
---|
| 826 | </varlistentry>
|
---|
| 827 |
|
---|
| 828 | </variablelist>
|
---|
| 829 |
|
---|
| 830 | </sect2>
|
---|
| 831 |
|
---|
| 832 | </sect1>
|
---|