[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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[87119fd] | 43 | <para>Remove two unneeded groups,
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| 44 | <systemitem class="groupname">render</systemitem> and
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| 45 | <systemitem class="groupname">sgx</systemitem>, from the default udev
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[896e77e] | 46 | rules:</para>
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| 47 |
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[1f201845] | 48 | <screen><userinput remap="pre">sed -i -e 's/GROUP="render"/GROUP="video"/' \
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[96fa6f2] | 49 | -e 's/GROUP="sgx", //' rules.d/50-udev-default.rules.in</userinput></screen>
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[896e77e] | 50 |
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[1118b17] | 51 | <para>Prepare systemd for compilation:</para>
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| 52 |
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[be00729f] | 53 | <screen><userinput remap="configure">mkdir -p build
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[04b2165] | 54 | cd build
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[fc199db] | 55 |
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[740ee46] | 56 | meson setup \
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| 57 | --prefix=/usr \
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[06cdaed] | 58 | --buildtype=release \
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[95906db] | 59 | -Ddefault-dnssec=no \
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| 60 | -Dfirstboot=false \
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| 61 | -Dinstall-tests=false \
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| 62 | -Dldconfig=false \
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| 63 | -Dsysusers=false \
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| 64 | -Drpmmacrosdir=no \
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| 65 | -Dhomed=false \
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| 66 | -Duserdb=false \
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[ceebda5] | 67 | -Dman=false \
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[38de42d] | 68 | -Dmode=release \
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[77e340bc] | 69 | -Dpamconfdir=no \
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[dfde664] | 70 | -Ddev-kvm-mode=0660 \
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[d7e0db5] | 71 | -Ddocdir=/usr/share/doc/systemd-&systemd-version; \
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[fc199db] | 72 | ..</userinput></screen>
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[cba2d4e] | 73 |
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| 74 | <variablelist>
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[81ed05f] | 75 | <title>The meaning of the meson options:</title>
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[cba2d4e] | 76 |
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[06cdaed] | 77 | <varlistentry>
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| 78 | <term><parameter>--buildtype=release</parameter></term>
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| 79 | <listitem>
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| 80 | <para>This switch overrides the default buildtype
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[69854d2a] | 81 | (<quote>debug</quote>), which produces unoptimized
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[06cdaed] | 82 | binaries.</para>
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| 83 | </listitem>
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| 84 | </varlistentry>
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| 85 |
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[cba2d4e] | 86 | <varlistentry>
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[81ed05f] | 87 | <term><parameter>-Ddefault-dnssec=no</parameter></term>
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[cba2d4e] | 88 | <listitem>
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[81ed05f] | 89 | <para>This switch turns off the experimental DNSSEC support.</para>
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[cba2d4e] | 90 | </listitem>
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| 91 | </varlistentry>
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| 92 |
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| 93 | <varlistentry>
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[81ed05f] | 94 | <term><parameter>-Dfirstboot=false</parameter></term>
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[cba2d4e] | 95 | <listitem>
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[81ed05f] | 96 | <para>This switch prevents installation of systemd
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| 97 | services responsible for setting up the system for
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[69854d2a] | 98 | the first time. These are not useful in LFS, because
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[81ed05f] | 99 | everything is done manually.</para>
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[cba2d4e] | 100 | </listitem>
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| 101 | </varlistentry>
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| 102 |
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[e88a471b] | 103 | <varlistentry>
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| 104 | <term><parameter>-Dinstall-tests=false</parameter></term>
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| 105 | <listitem>
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| 106 | <para>This switch prevents installation of the compiled tests.</para>
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| 107 | </listitem>
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| 108 | </varlistentry>
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| 109 |
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[cba2d4e] | 110 | <varlistentry>
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[0d84af1] | 111 | <term><parameter>-Dldconfig=false</parameter></term>
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[cba2d4e] | 112 | <listitem>
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[0d84af1] | 113 | <para>This switch prevents installation of a systemd unit that runs
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[69854d2a] | 114 | <command>ldconfig</command> at boot; this is not useful for source
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| 115 | distributions such as LFS, and makes the boot time longer. Remove
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| 116 | this option to enable running <command>ldconfig</command> at boot.</para>
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[cba2d4e] | 117 | </listitem>
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| 118 | </varlistentry>
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| 119 |
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[1118b17] | 120 | <varlistentry>
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[81ed05f] | 121 | <term><parameter>-Dsysusers=false</parameter></term>
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[1118b17] | 122 | <listitem>
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| 123 | <para>This switch prevents installation of systemd
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| 124 | services responsible for setting up the
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| 125 | <filename>/etc/group</filename> and
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| 126 | <filename>/etc/passwd</filename> files. Both files
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[f09dd59] | 127 | were created in the previous chapter. This daemon is not useful
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[0a75d62] | 128 | on an LFS system since user accounts are manually created.</para>
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[cba2d4e] | 129 | </listitem>
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| 130 | </varlistentry>
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| 131 |
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[be00729f] | 132 | <varlistentry>
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| 133 | <term><parameter>-Drpmmacrosdir=no</parameter></term>
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| 134 | <listitem>
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| 135 | <para>This switch disables installation of RPM Macros
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[69854d2a] | 136 | for use with systemd, because LFS does not support RPM.</para>
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[be00729f] | 137 | </listitem>
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| 138 | </varlistentry>
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[d1fbbd0] | 139 |
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| 140 | <varlistentry>
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| 141 | <term><parameter>-D{userdb,homed}=false</parameter></term>
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| 142 | <listitem>
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[69854d2a] | 143 | <para>Remove two daemons with dependencies that do not fit
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| 144 | within the scope of LFS.</para>
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[d1fbbd0] | 145 | </listitem>
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| 146 | </varlistentry>
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| 147 |
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[ceebda5] | 148 | <varlistentry>
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| 149 | <term><parameter>-Dman=false</parameter></term>
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| 150 | <listitem>
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| 151 | <para>Prevent the generation of man pages to avoid extra
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| 152 | dependencies. We will install pre-generated man pages for systemd
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[69854d2a] | 153 | from a tarball.</para>
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[ceebda5] | 154 | </listitem>
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| 155 | </varlistentry>
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| 156 |
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[38de42d] | 157 | <varlistentry>
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| 158 | <term><parameter>-Dmode=release</parameter></term>
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| 159 | <listitem>
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| 160 | <para>Disable some features considered experimental by upstream.
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| 161 | </para>
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| 162 | </listitem>
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| 163 | </varlistentry>
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| 164 |
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[77e340bc] | 165 | <varlistentry>
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| 166 | <term><parameter>-Dpamconfdir=no</parameter></term>
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| 167 | <listitem>
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| 168 | <para>Prevent the installation of a PAM configuration file not
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| 169 | functional on LFS.</para>
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| 170 | </listitem>
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| 171 | </varlistentry>
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[dfde664] | 172 |
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| 173 | <varlistentry>
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| 174 | <term><parameter>-Ddev-kvm-mode=0660</parameter></term>
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| 175 | <listitem>
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| 176 | <para>The default udev rule would allow all users to access
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| 177 | <filename class='devicefile'>/dev/kvm</filename>. The editors
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| 178 | consider it dangerous. This option overrides it.</para>
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| 179 | </listitem>
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| 180 | </varlistentry>
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[cba2d4e] | 181 | </variablelist>
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| 182 |
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| 183 | <para>Compile the package:</para>
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| 184 |
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[69c4524] | 185 | <screen><userinput remap="make">ninja</userinput></screen>
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[f896e21c] | 186 |
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| 187 | <para>Install the package:</para>
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| 188 |
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[69c4524] | 189 | <screen><userinput remap="install">ninja install</userinput></screen>
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[cba2d4e] | 190 |
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[ceebda5] | 191 | <para>Install the man pages:</para>
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[cba2d4e] | 192 |
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[b4008bb] | 193 | <!-- Please make sure systemd man pages tarball has a common leading
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| 194 | component in the path. -->
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[57f1678] | 195 | <screen><userinput remap="install">tar -xf ../../systemd-man-pages-&systemd-version;.tar.xz \
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| 196 | --no-same-owner --strip-components=1 \
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| 197 | -C /usr/share/man</userinput></screen>
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[a5c2803] | 198 |
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[cba2d4e] | 199 | <para>Create the <filename>/etc/machine-id</filename> file needed by
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[1118b17] | 200 | <command>systemd-journald</command>:</para>
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[053b206] | 201 |
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[15f0f21] | 202 | <screen><userinput remap="adjust">systemd-machine-id-setup</userinput></screen>
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[cba2d4e] | 203 |
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[69854d2a] | 204 | <para>Set up the basic target structure:</para>
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[0aaf6a31] | 205 |
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| 206 | <screen><userinput remap="adjust">systemctl preset-all</userinput></screen>
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| 207 |
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[5156c400] | 208 | <para>Disable two services for upgrading binary distros. They are useless for
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[69854d2a] | 209 | a basic Linux system built from source, and each one will report an error if
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[f99a7eb] | 210 | it's enabled but not configured:</para>
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| 211 |
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[5156c400] | 212 | <screen><userinput remap="adjust">systemctl disable systemd-sysupdate{,-reboot}</userinput></screen>
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[172185a9] | 213 |
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[a5c2803] | 214 | <!-- dev: 50-pid-max.conf is not removed in BLFS, so I commented the following out.
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| 215 | If it causes any trouble, we can add this back and also copy it into BLFS -->
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| 216 | <!--
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[0aaf6a31] | 217 | <para>Prevent systemd from resetting the maximum PID value which causes
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| 218 | some problems with packages and units in BLFS:</para>
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[d672ab7] | 219 |
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[d1fbbd0] | 220 | <screen><userinput remap="adjust">rm -f /usr/lib/sysctl.d/50-pid-max.conf</userinput></screen>
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[a5c2803] | 221 | -->
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[0aaf6a31] | 222 |
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[f896e21c] | 223 | </sect2>
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| 224 |
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[6dfcfecc] | 225 | <!-- - - - - - - - - - -->
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| 226 | <!-- Multilib - 32bit -->
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| 227 | <!-- - - - - - - - - - -->
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| 228 |
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[fd48baa] | 229 | <sect2 arch="ml_32,ml_all" role="installation">
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[b3f1ebb3] | 230 | <title>Installation of systemd - 32-bit</title>
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| 231 |
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| 232 | <para>Clean previous build:</para>
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| 233 |
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[6dfcfecc] | 234 | <screen><userinput remap="pre">rm -rf *</userinput></screen>
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[b3f1ebb3] | 235 |
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| 236 | <para>Create a symlink to work around missing xsltproc:</para>
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| 237 |
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[6dfcfecc] | 238 | <!-- screen><userinput remap="pre">ln -sf /tools/bin/true /usr/bin/xsltproc</userinput></screen -->
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| 239 | <screen><userinput remap="pre">ln -sf /bin/true /usr/bin/xsltproc</userinput></screen>
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[b3f1ebb3] | 240 |
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[6dfcfecc] | 241 | <!-- with cross-LFS we have util-linux in place:
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[b3f1ebb3] | 242 | <para>Because we have not yet installed the final version of Util-Linux,
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| 243 | create links to the libraries in the approprite location:</para>
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| 244 |
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| 245 | <screen><userinput remap="pre">for file in /tools/lib32/lib{blkid,mount,uuid}*; do
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| 246 | ln -sf $file /usr/lib32/
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| 247 | done</userinput></screen>
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[6dfcfecc] | 248 | -->
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[b3f1ebb3] | 249 |
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| 250 | <para>Prepare systemd for compilation:</para>
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| 251 |
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[0ebda11] | 252 | <screen><userinput remap="configure">PKG_CONFIG_PATH="/usr/lib32/pkgconfig" \
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[b3f1ebb3] | 253 | CC="gcc -m32 -march=i686" \
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| 254 | CXX="g++ -m32 -march=i686" \
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| 255 | LANG=en_US.UTF-8 \
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| 256 | meson --prefix=/usr \
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| 257 | --sysconfdir=/etc \
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| 258 | --localstatedir=/var \
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[0f46bd2] | 259 | --libdir=/usr/lib32 \
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[0ebda11] | 260 | -Drootlibdir=/usr/lib32 \
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[3c2b819] | 261 | -Dblkid=true \
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| 262 | -Ddefault-dnssec=no \
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| 263 | -Dfirstboot=false \
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| 264 | -Dinstall-tests=false \
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| 265 | -Dldconfig=false \
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| 266 | -Dsysusers=false \
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| 267 | -Db_lto=false \
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| 268 | -Drpmmacrosdir=no \
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| 269 | -Dhomed=false \
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| 270 | -Duserdb=false \
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| 271 | -Dman=false \
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| 272 | -Dmode=release \
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[b3f1ebb3] | 273 | ..</userinput></screen>
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| 274 |
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| 275 | <para>Compile the package:</para>
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| 276 |
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| 277 | <screen><userinput remap="make">LANG=en_US.UTF-8 ninja</userinput></screen>
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| 278 |
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| 279 | <para>Install the package:</para>
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| 280 |
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| 281 | <screen><userinput remap="install">LANG=en_US.UTF-8 DESTDIR=$PWD/DESTDIR ninja install
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[0ebda11] | 282 | cp -Rv DESTDIR/usr/lib32/* /usr/lib32
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[b3f1ebb3] | 283 | rm -rf DESTDIR
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| 284 | rm -f /usr/bin/xsltproc</userinput></screen>
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| 285 |
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[6dfcfecc] | 286 | </sect2><!-- m32 -->
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[b3f1ebb3] | 287 |
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[6dfcfecc] | 288 | <!-- - - - - - - - - - -->
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| 289 | <!-- Multilib - x32bit -->
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| 290 | <!-- - - - - - - - - - -->
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| 291 |
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[fd48baa] | 292 | <sect2 arch="ml_x32,ml_all" role="installation">
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[b3f1ebb3] | 293 | <title>Installation of systemd - x32-bit</title>
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| 294 |
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| 295 | <para>Clean previous build:</para>
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| 296 |
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[6dfcfecc] | 297 | <screen><userinput remap="pre">rm -rf *</userinput></screen>
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[b3f1ebb3] | 298 |
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| 299 | <para>Create a symlink to work around missing xsltproc:</para>
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| 300 |
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[6dfcfecc] | 301 | <screen><userinput remap="pre">ln -sf /bin/true /usr/bin/xsltproc</userinput></screen>
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[3c2b819] | 302 | <!--
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[b3f1ebb3] | 303 | <para>Fix an issue on x32:</para>
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| 304 |
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| 305 | <screen><userinput remap="pre">sed '/log_debug/s@PRI_TIMEX@PRIi64@' -i src/timesync/timesyncd-manager.c
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| 306 | sed '/long drift_freq;/s@long @int64_t @' -i src/timesync/timesyncd-manager.h</userinput></screen>
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[3c2b819] | 307 | -->
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[b3f1ebb3] | 308 | <para>Prepare systemd for compilation:</para>
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| 309 |
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[0ebda11] | 310 | <screen><userinput remap="configure">PKG_CONFIG_PATH="/usr/libx32/pkgconfig" \
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[b3f1ebb3] | 311 | CC="gcc -mx32" \
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| 312 | CXX="g++ -mx32" \
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[df9c52e] | 313 | CFLAGS+=" -Wno-error=shift-overflow" \
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| 314 | CXXFLAGS+=" -Wno-error=shift-overflow" \
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[b3f1ebb3] | 315 | LANG=en_US.UTF-8 \
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| 316 | meson --prefix=/usr \
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| 317 | --sysconfdir=/etc \
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| 318 | --localstatedir=/var \
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[0f46bd2] | 319 | --libdir=/usr/libx32 \
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[0ebda11] | 320 | -Drootlibdir=/usr/libx32 \
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[3c2b819] | 321 | -Dblkid=true \
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| 322 | -Ddefault-dnssec=no \
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| 323 | -Dfirstboot=false \
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| 324 | -Dinstall-tests=false \
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| 325 | -Dldconfig=false \
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| 326 | -Dsysusers=false \
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| 327 | -Db_lto=false \
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| 328 | -Drpmmacrosdir=no \
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| 329 | -Dhomed=false \
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| 330 | -Duserdb=false \
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| 331 | -Dman=false \
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| 332 | -Dmode=release \
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[b3f1ebb3] | 333 | ..</userinput></screen>
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| 334 |
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| 335 | <para>Compile the package:</para>
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| 336 |
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| 337 | <screen><userinput remap="make">LANG=en_US.UTF-8 ninja</userinput></screen>
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| 338 |
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| 339 | <para>Install the package:</para>
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| 340 |
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| 341 | <screen><userinput remap="install">LANG=en_US.UTF-8 DESTDIR=$PWD/DESTDIR ninja install
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[3c2b819] | 342 | cp -Rv DESTDIR/usr/libx32/* /usr/libx32
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[b3f1ebb3] | 343 | rm -rf DESTDIR
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| 344 | rm -f /usr/bin/xsltproc</userinput></screen>
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| 345 |
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[6dfcfecc] | 346 | </sect2><!-- mx32 -->
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[b3f1ebb3] | 347 |
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[cba2d4e] | 348 | <sect2 id="contents-systemd" role="content">
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[1118b17] | 349 | <title>Contents of systemd</title>
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[f896e21c] | 350 |
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| 351 | <segmentedlist>
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| 352 | <segtitle>Installed programs</segtitle>
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| 353 | <segtitle>Installed libraries</segtitle>
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| 354 | <segtitle>Installed directories</segtitle>
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| 355 |
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| 356 | <seglistitem>
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[662f649] | 357 | <seg>busctl, coredumpctl, halt (symlink to systemctl),
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[78cc3be] | 358 | hostnamectl, init, journalctl, kernel-install, localectl, loginctl,
|
---|
[c2ccad1] | 359 | machinectl, mount.ddi (symlink to systemd-dissect), networkctl,
|
---|
| 360 | oomctl, portablectl, poweroff (symlink to
|
---|
[78cc3be] | 361 | systemctl), reboot (symlink to systemctl), resolvconf (symlink to
|
---|
| 362 | resolvectl), resolvectl, runlevel (symlink to systemctl), shutdown
|
---|
[2efe1e8] | 363 | (symlink to systemctl), systemctl, systemd-ac-power, systemd-analyze,
|
---|
[1118b17] | 364 | systemd-ask-password, systemd-cat, systemd-cgls, systemd-cgtop,
|
---|
[c2ccad1] | 365 | systemd-confext (symlink to systemd-sysext), systemd-creds,
|
---|
| 366 | systemd-delta, systemd-detect-virt,
|
---|
[d7a9421] | 367 | systemd-dissect, systemd-escape, systemd-hwdb, systemd-id128,
|
---|
| 368 | systemd-inhibit, systemd-machine-id-setup,
|
---|
[78cc3be] | 369 | systemd-mount, systemd-notify, systemd-nspawn, systemd-path,
|
---|
[d1fbbd0] | 370 | systemd-repart, systemd-resolve (symlink to resolvectl), systemd-run,
|
---|
[d7a9421] | 371 | systemd-socket-activate, systemd-stdio-bridge, systemd-sysext,
|
---|
| 372 | systemd-tmpfiles, systemd-tty-ask-password-agent,
|
---|
| 373 | systemd-umount (symlink to systemd-mount),
|
---|
| 374 | telinit (symlink to systemctl), timedatectl, and udevadm</seg>
|
---|
[1118b17] | 375 | <seg>libnss_myhostname.so.2, libnss_mymachines.so.2,
|
---|
[78cc3be] | 376 | libnss_resolve.so.2, libnss_systemd.so.2,
|
---|
[d7a9421] | 377 | libsystemd.so, libsystemd-shared-&systemd-version;.so (in /usr/lib/systemd),
|
---|
[a840e59] | 378 | and libudev.so</seg>
|
---|
[59d90df] | 379 | <seg>/etc/binfmt.d, /etc/init.d, /etc/kernel, /etc/modules-load.d,
|
---|
[cba2d4e] | 380 | /etc/sysctl.d, /etc/systemd, /etc/tmpfiles.d, /etc/udev,
|
---|
[d7a9421] | 381 | /etc/xdg/systemd, /usr/lib/systemd, /usr/lib/udev, /usr/include/systemd,
|
---|
[d672ab7] | 382 | /usr/lib/binfmt.d, /usr/lib/environment.d, /usr/lib/kernel,
|
---|
| 383 | /usr/lib/modules-load.d, /usr/lib/sysctl.d, /usr/lib/systemd,
|
---|
[4ea78e0] | 384 | /usr/lib/tmpfiles.d,
|
---|
[1118b17] | 385 | /usr/share/doc/systemd-&systemd-version;, /usr/share/factory,
|
---|
| 386 | /usr/share/systemd, /var/lib/systemd, and /var/log/journal</seg>
|
---|
[f896e21c] | 387 | </seglistitem>
|
---|
| 388 | </segmentedlist>
|
---|
| 389 |
|
---|
| 390 | <variablelist>
|
---|
| 391 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
---|
| 392 | <?dbfo list-presentation="list"?>
|
---|
| 393 | <?dbhtml list-presentation="table"?>
|
---|
| 394 |
|
---|
[cba2d4e] | 395 | <varlistentry id="busctl">
|
---|
| 396 | <term><command>busctl</command></term>
|
---|
| 397 | <listitem>
|
---|
[6dfcfecc] | 398 | <para>Is used to introspect and monitor the D-Bus bus</para>
|
---|
[cba2d4e] | 399 | <indexterm zone="ch-system-systemd busctl">
|
---|
| 400 | <primary sortas="b-busctl">busctl</primary>
|
---|
| 401 | </indexterm>
|
---|
| 402 | </listitem>
|
---|
| 403 | </varlistentry>
|
---|
| 404 |
|
---|
[1118b17] | 405 | <varlistentry id="coredumpctl">
|
---|
| 406 | <term><command>coredumpctl</command></term>
|
---|
| 407 | <listitem>
|
---|
[6dfcfecc] | 408 | <para>Is used to retrieve coredumps from the systemd journal</para>
|
---|
[1118b17] | 409 | <indexterm zone="ch-system-systemd coredumpctl">
|
---|
| 410 | <primary sortas="b-coredumpctl">coredumpctl</primary>
|
---|
| 411 | </indexterm>
|
---|
| 412 | </listitem>
|
---|
| 413 | </varlistentry>
|
---|
| 414 |
|
---|
[cba2d4e] | 415 | <varlistentry id="halt">
|
---|
| 416 | <term><command>halt</command></term>
|
---|
| 417 | <listitem>
|
---|
| 418 | <para>Normally invokes <command>shutdown</command> with the
|
---|
| 419 | <parameter>-h</parameter> option, except when already in run-level 0,
|
---|
[69854d2a] | 420 | when it tells the kernel to halt the system; it notes in the
|
---|
[cba2d4e] | 421 | file <filename>/var/log/wtmp</filename> that the system is being
|
---|
[1118b17] | 422 | brought down</para>
|
---|
[cba2d4e] | 423 | <indexterm zone="ch-system-systemd halt">
|
---|
| 424 | <primary sortas="b-halt">halt</primary>
|
---|
| 425 | </indexterm>
|
---|
| 426 | </listitem>
|
---|
| 427 | </varlistentry>
|
---|
| 428 |
|
---|
| 429 | <varlistentry id="hostnamectl">
|
---|
| 430 | <term><command>hostnamectl</command></term>
|
---|
| 431 | <listitem>
|
---|
[6dfcfecc] | 432 | <para>Is used to query and change the system hostname and related
|
---|
[1118b17] | 433 | settings</para>
|
---|
[cba2d4e] | 434 | <indexterm zone="ch-system-systemd hostnamectl">
|
---|
| 435 | <primary sortas="b-hostnamectl">hostnamectl</primary>
|
---|
| 436 | </indexterm>
|
---|
| 437 | </listitem>
|
---|
| 438 | </varlistentry>
|
---|
| 439 |
|
---|
| 440 | <varlistentry id="init">
|
---|
| 441 | <term><command>init</command></term>
|
---|
| 442 | <listitem>
|
---|
[69854d2a] | 443 | <para>Is the first process to be started after the kernel has initialized
|
---|
| 444 | the hardware; <command>init</command> takes over the boot process and starts the
|
---|
| 445 | processes specified by its configuration files; in this case, it starts
|
---|
[4c8c128] | 446 | systemd</para>
|
---|
[cba2d4e] | 447 | <indexterm zone="ch-system-systemd init">
|
---|
| 448 | <primary sortas="b-init">init</primary>
|
---|
| 449 | </indexterm>
|
---|
| 450 | </listitem>
|
---|
| 451 | </varlistentry>
|
---|
| 452 |
|
---|
| 453 | <varlistentry id="journalctl">
|
---|
| 454 | <term><command>journalctl</command></term>
|
---|
| 455 | <listitem>
|
---|
[6dfcfecc] | 456 | <para>Is used to query the contents of the systemd journal</para>
|
---|
[cba2d4e] | 457 | <indexterm zone="ch-system-systemd journalctl">
|
---|
| 458 | <primary sortas="b-journalctl">journalctl</primary>
|
---|
| 459 | </indexterm>
|
---|
| 460 | </listitem>
|
---|
| 461 | </varlistentry>
|
---|
| 462 |
|
---|
| 463 | <varlistentry id="kernel-install">
|
---|
| 464 | <term><command>kernel-install</command></term>
|
---|
| 465 | <listitem>
|
---|
[6dfcfecc] | 466 | <para>Is used to add and remove kernel and initramfs images to and
|
---|
[69854d2a] | 467 | from /boot; in LFS, this is done manually</para>
|
---|
[cba2d4e] | 468 | <indexterm zone="ch-system-systemd kernel-install">
|
---|
| 469 | <primary sortas="b-kernel-install">kernel-install</primary>
|
---|
| 470 | </indexterm>
|
---|
| 471 | </listitem>
|
---|
| 472 | </varlistentry>
|
---|
| 473 |
|
---|
| 474 | <varlistentry id="localectl">
|
---|
| 475 | <term><command>localectl</command></term>
|
---|
| 476 | <listitem>
|
---|
[6dfcfecc] | 477 | <para>Is used to query and change the system locale and keyboard layout
|
---|
[1118b17] | 478 | settings</para>
|
---|
[cba2d4e] | 479 | <indexterm zone="ch-system-systemd localectl">
|
---|
| 480 | <primary sortas="b-localectl">localectl</primary>
|
---|
| 481 | </indexterm>
|
---|
| 482 | </listitem>
|
---|
| 483 | </varlistentry>
|
---|
| 484 |
|
---|
| 485 | <varlistentry id="loginctl">
|
---|
| 486 | <term><command>loginctl</command></term>
|
---|
| 487 | <listitem>
|
---|
[6dfcfecc] | 488 | <para>Is used to introspect and control the state of the systemd Login
|
---|
[1118b17] | 489 | Manager</para>
|
---|
[cba2d4e] | 490 | <indexterm zone="ch-system-systemd loginctl">
|
---|
| 491 | <primary sortas="b-loginctl">loginctl</primary>
|
---|
| 492 | </indexterm>
|
---|
| 493 | </listitem>
|
---|
| 494 | </varlistentry>
|
---|
| 495 |
|
---|
| 496 | <varlistentry id="machinectl">
|
---|
| 497 | <term><command>machinectl</command></term>
|
---|
| 498 | <listitem>
|
---|
[6dfcfecc] | 499 | <para>Is used to introspect and control the state of the systemd Virtual
|
---|
[cba2d4e] | 500 | Machine and Container Registration Manager</para>
|
---|
| 501 | <indexterm zone="ch-system-systemd machinectl">
|
---|
| 502 | <primary sortas="b-machinectl">machinectl</primary>
|
---|
| 503 | </indexterm>
|
---|
| 504 | </listitem>
|
---|
| 505 | </varlistentry>
|
---|
| 506 |
|
---|
[1118b17] | 507 | <varlistentry id="networkctl">
|
---|
| 508 | <term><command>networkctl</command></term>
|
---|
| 509 | <listitem>
|
---|
[d672ab7] | 510 | <para>Is used to introspect and configure the state of the network
|
---|
[6dfcfecc] | 511 | links configured by systemd-networkd</para>
|
---|
[1118b17] | 512 | <indexterm zone="ch-system-systemd networkctl">
|
---|
| 513 | <primary sortas="b-networkctl">networkctl</primary>
|
---|
| 514 | </indexterm>
|
---|
| 515 | </listitem>
|
---|
| 516 | </varlistentry>
|
---|
| 517 |
|
---|
[d7a9421] | 518 | <varlistentry id="oomctl">
|
---|
| 519 | <term><command>oomctl</command></term>
|
---|
| 520 | <listitem>
|
---|
| 521 | <para>Controls the systemd Out Of Memory daemon</para>
|
---|
| 522 | <indexterm zone="ch-system-systemd oomctl">
|
---|
| 523 | <primary sortas="b-oomctl">oomctl</primary>
|
---|
| 524 | </indexterm>
|
---|
| 525 | </listitem>
|
---|
| 526 | </varlistentry>
|
---|
| 527 |
|
---|
[78cc3be] | 528 | <varlistentry id="portablectl">
|
---|
| 529 | <term><command>portablectl</command></term>
|
---|
| 530 | <listitem>
|
---|
[6dfcfecc] | 531 | <para>Is used to attach or detach portable services from the local
|
---|
[78cc3be] | 532 | system</para>
|
---|
| 533 | <indexterm zone="ch-system-systemd portablectl">
|
---|
| 534 | <primary sortas="b-portablectl">portablectl</primary>
|
---|
| 535 | </indexterm>
|
---|
| 536 | </listitem>
|
---|
| 537 | </varlistentry>
|
---|
| 538 |
|
---|
[cba2d4e] | 539 | <varlistentry id="poweroff">
|
---|
| 540 | <term><command>poweroff</command></term>
|
---|
| 541 | <listitem>
|
---|
[6dfcfecc] | 542 | <para>Instructs the kernel to halt the system and switch off the computer
|
---|
[1118b17] | 543 | (see <command>halt</command>)</para>
|
---|
[cba2d4e] | 544 | <indexterm zone="ch-system-systemd poweroff">
|
---|
| 545 | <primary sortas="b-poweroff">poweroff</primary>
|
---|
| 546 | </indexterm>
|
---|
| 547 | </listitem>
|
---|
| 548 | </varlistentry>
|
---|
| 549 |
|
---|
| 550 | <varlistentry id="reboot">
|
---|
| 551 | <term><command>reboot</command></term>
|
---|
[f896e21c] | 552 | <listitem>
|
---|
[6dfcfecc] | 553 | <para>Instructs the kernel to reboot the system (see
|
---|
[1118b17] | 554 | <command>halt</command>)</para>
|
---|
[cba2d4e] | 555 | <indexterm zone="ch-system-systemd reboot">
|
---|
| 556 | <primary sortas="b-reboot">reboot</primary>
|
---|
[f896e21c] | 557 | </indexterm>
|
---|
| 558 | </listitem>
|
---|
| 559 | </varlistentry>
|
---|
| 560 |
|
---|
[78cc3be] | 561 | <varlistentry id="resolvconf">
|
---|
| 562 | <term><command>resolvconf</command></term>
|
---|
| 563 | <listitem>
|
---|
[6dfcfecc] | 564 | <para>Registers DNS server and domain configuration with
|
---|
[93058448] | 565 | <command>systemd-resolved</command></para>
|
---|
[78cc3be] | 566 | <indexterm zone="ch-system-systemd resolvconf">
|
---|
| 567 | <primary sortas="b-resolvconf">resolvconf</primary>
|
---|
| 568 | </indexterm>
|
---|
| 569 | </listitem>
|
---|
| 570 | </varlistentry>
|
---|
| 571 |
|
---|
| 572 | <varlistentry id="resolvectl">
|
---|
| 573 | <term><command>resolvectl</command></term>
|
---|
| 574 | <listitem>
|
---|
[6dfcfecc] | 575 | <para>Sends control commands to the network name resolution
|
---|
| 576 | manager, or resolves domain names, IPv4 and IPv6 addresses,
|
---|
[4c8c128] | 577 | DNS records, and services</para>
|
---|
[78cc3be] | 578 | <indexterm zone="ch-system-systemd resolvectl">
|
---|
| 579 | <primary sortas="b-resolvectl">resolvectl</primary>
|
---|
| 580 | </indexterm>
|
---|
| 581 | </listitem>
|
---|
| 582 | </varlistentry>
|
---|
| 583 |
|
---|
[cba2d4e] | 584 | <varlistentry id="runlevel">
|
---|
| 585 | <term><command>runlevel</command></term>
|
---|
[f896e21c] | 586 | <listitem>
|
---|
[6dfcfecc] | 587 | <para>Outputs the previous and the current run-level, as noted in the
|
---|
[edd83dc] | 588 | last run-level record in <filename>/run/utmp</filename></para>
|
---|
[cba2d4e] | 589 | <indexterm zone="ch-system-systemd runlevel">
|
---|
| 590 | <primary sortas="b-runlevel">runlevel</primary>
|
---|
[f896e21c] | 591 | </indexterm>
|
---|
| 592 | </listitem>
|
---|
| 593 | </varlistentry>
|
---|
| 594 |
|
---|
[cba2d4e] | 595 | <varlistentry id="shutdown">
|
---|
| 596 | <term><command>shutdown</command></term>
|
---|
[f896e21c] | 597 | <listitem>
|
---|
[d672ab7] | 598 | <para>Brings the system down in a safe and secure manner, signaling
|
---|
[6dfcfecc] | 599 | all processes and notifying all logged-in users</para>
|
---|
[cba2d4e] | 600 | <indexterm zone="ch-system-systemd shutdown">
|
---|
| 601 | <primary sortas="b-shutdown">shutdown</primary>
|
---|
[f896e21c] | 602 | </indexterm>
|
---|
| 603 | </listitem>
|
---|
| 604 | </varlistentry>
|
---|
| 605 |
|
---|
[cba2d4e] | 606 | <varlistentry id="systemctl">
|
---|
| 607 | <term><command>systemctl</command></term>
|
---|
[f896e21c] | 608 | <listitem>
|
---|
[6dfcfecc] | 609 | <para>Is used to introspect and control the state of the systemd system
|
---|
[1118b17] | 610 | and service manager</para>
|
---|
[cba2d4e] | 611 | <indexterm zone="ch-system-systemd systemctl">
|
---|
| 612 | <primary sortas="b-systemctl">systemctl</primary>
|
---|
| 613 | </indexterm>
|
---|
| 614 | </listitem>
|
---|
| 615 | </varlistentry>
|
---|
| 616 |
|
---|
[2efe1e8] | 617 | <varlistentry id="systemd-ac-power">
|
---|
| 618 | <term><command>systemd-ac-power</command></term>
|
---|
| 619 | <listitem>
|
---|
| 620 | <para>Reports whether the system is connected to an external
|
---|
| 621 | power source.</para>
|
---|
| 622 | <indexterm zone="ch-system-systemd systemd-ac-power">
|
---|
| 623 | <primary sortas="b-systemd-ac-power">systemd-ac-power</primary>
|
---|
| 624 | </indexterm>
|
---|
| 625 | </listitem>
|
---|
| 626 | </varlistentry>
|
---|
| 627 |
|
---|
[cba2d4e] | 628 | <varlistentry id="systemd-analyze">
|
---|
| 629 | <term><command>systemd-analyze</command></term>
|
---|
| 630 | <listitem>
|
---|
[69854d2a] | 631 | <para>Is used to analyze system startup performance,
|
---|
| 632 | as well as identify troublesome systemd units</para>
|
---|
[cba2d4e] | 633 | <indexterm zone="ch-system-systemd systemd-analyze">
|
---|
| 634 | <primary sortas="b-systemd-analyze">systemd-analyze</primary>
|
---|
| 635 | </indexterm>
|
---|
| 636 | </listitem>
|
---|
| 637 | </varlistentry>
|
---|
| 638 |
|
---|
| 639 | <varlistentry id="systemd-ask-password">
|
---|
| 640 | <term><command>systemd-ask-password</command></term>
|
---|
| 641 | <listitem>
|
---|
[6dfcfecc] | 642 | <para>Is used to query a system password or passphrase from the user,
|
---|
[69854d2a] | 643 | using a message specified on the Linux command line</para>
|
---|
[cba2d4e] | 644 | <indexterm zone="ch-system-systemd systemd-ask-password">
|
---|
| 645 | <primary sortas="b-systemd-ask-password">systemd-ask-password</primary>
|
---|
| 646 | </indexterm>
|
---|
| 647 | </listitem>
|
---|
| 648 | </varlistentry>
|
---|
| 649 |
|
---|
| 650 | <varlistentry id="systemd-cat">
|
---|
| 651 | <term><command>systemd-cat</command></term>
|
---|
| 652 | <listitem>
|
---|
[6dfcfecc] | 653 | <para>Is used to connect the STDOUT and STDERR outputs of a process
|
---|
[4c8c128] | 654 | with the systemd journal
|
---|
[cba2d4e] | 655 | </para>
|
---|
| 656 | <indexterm zone="ch-system-systemd systemd-cat">
|
---|
| 657 | <primary sortas="b-systemd-cat">systemd-cat</primary>
|
---|
| 658 | </indexterm>
|
---|
| 659 | </listitem>
|
---|
| 660 | </varlistentry>
|
---|
| 661 |
|
---|
| 662 | <varlistentry id="systemd-cgls">
|
---|
| 663 | <term><command>systemd-cgls</command></term>
|
---|
| 664 | <listitem>
|
---|
[1118b17] | 665 | <para>Recursively shows the contents of the selected Linux control
|
---|
| 666 | group hierarchy in a tree</para>
|
---|
[cba2d4e] | 667 | <indexterm zone="ch-system-systemd systemd-cgls">
|
---|
| 668 | <primary sortas="b-systemd-cgls">systemd-cgls</primary>
|
---|
| 669 | </indexterm>
|
---|
| 670 | </listitem>
|
---|
| 671 | </varlistentry>
|
---|
| 672 |
|
---|
| 673 | <varlistentry id="systemd-cgtop">
|
---|
| 674 | <term><command>systemd-cgtop</command></term>
|
---|
| 675 | <listitem>
|
---|
[1118b17] | 676 | <para>Shows the top control groups of the local Linux control group
|
---|
[69854d2a] | 677 | hierarchy, ordered by their CPU, memory and disk I/O loads</para>
|
---|
[cba2d4e] | 678 | <indexterm zone="ch-system-systemd systemd-cgtop">
|
---|
| 679 | <primary sortas="b-systemd-cgtop">systemd-cgtop</primary>
|
---|
| 680 | </indexterm>
|
---|
| 681 | </listitem>
|
---|
| 682 | </varlistentry>
|
---|
| 683 |
|
---|
[662f649] | 684 | <varlistentry id="systemd-creds">
|
---|
| 685 | <term><command>systemd-creds</command></term>
|
---|
[d7a9421] | 686 | <listitem>
|
---|
[9f0a642] | 687 | <para>Displays and processes credentials</para>
|
---|
[662f649] | 688 | <indexterm zone="ch-system-systemd systemd-creds">
|
---|
| 689 | <primary sortas="b-systemd-creds">systemd-creds</primary>
|
---|
[d7a9421] | 690 | </indexterm>
|
---|
| 691 | </listitem>
|
---|
| 692 | </varlistentry>
|
---|
| 693 |
|
---|
[cba2d4e] | 694 | <varlistentry id="systemd-delta">
|
---|
| 695 | <term><command>systemd-delta</command></term>
|
---|
| 696 | <listitem>
|
---|
[6dfcfecc] | 697 | <para>Is used to identify and compare configuration files in
|
---|
[69854d2a] | 698 | <filename class="directory">/etc</filename> that override the defaults
|
---|
| 699 | in <filename class="directory">/usr</filename></para>
|
---|
[cba2d4e] | 700 | <indexterm zone="ch-system-systemd systemd-delta">
|
---|
| 701 | <primary sortas="b-systemd-delta">systemd-delta</primary>
|
---|
| 702 | </indexterm>
|
---|
| 703 | </listitem>
|
---|
| 704 | </varlistentry>
|
---|
| 705 |
|
---|
| 706 | <varlistentry id="systemd-detect-virt">
|
---|
| 707 | <term><command>systemd-detect-virt</command></term>
|
---|
| 708 | <listitem>
|
---|
[6dfcfecc] | 709 | <para>Detects whether the system is being run in a virtual
|
---|
[4c8c128] | 710 | environment, and adjusts udev accordingly</para>
|
---|
[cba2d4e] | 711 | <indexterm zone="ch-system-systemd systemd-detect-virt">
|
---|
| 712 | <primary sortas="b-systemd-detect-virt">systemd-detect-virt</primary>
|
---|
| 713 | </indexterm>
|
---|
| 714 | </listitem>
|
---|
| 715 | </varlistentry>
|
---|
| 716 |
|
---|
[38de42d] | 717 | <varlistentry id="systemd-dissect">
|
---|
| 718 | <term><command>systemd-dissect</command></term>
|
---|
| 719 | <listitem>
|
---|
[4c8c128] | 720 | <para>Is used to inspect OS disk images</para>
|
---|
[38de42d] | 721 | <indexterm zone="ch-system-systemd systemd-dissect">
|
---|
| 722 | <primary sortas="b-systemd-dissect">systemd-dissect</primary>
|
---|
| 723 | </indexterm>
|
---|
| 724 | </listitem>
|
---|
| 725 | </varlistentry>
|
---|
| 726 |
|
---|
[1118b17] | 727 | <varlistentry id="systemd-escape">
|
---|
| 728 | <term><command>systemd-escape</command></term>
|
---|
| 729 | <listitem>
|
---|
[6dfcfecc] | 730 | <para>Is used to escape strings for inclusion in systemd unit
|
---|
[1118b17] | 731 | names</para>
|
---|
| 732 | <indexterm zone="ch-system-systemd systemd-escape">
|
---|
| 733 | <primary sortas="b-systemd-escape">systemd-escape</primary>
|
---|
| 734 | </indexterm>
|
---|
| 735 | </listitem>
|
---|
| 736 | </varlistentry>
|
---|
| 737 |
|
---|
| 738 | <varlistentry id="systemd-hwdb">
|
---|
| 739 | <term><command>systemd-hwdb</command></term>
|
---|
| 740 | <listitem>
|
---|
[6dfcfecc] | 741 | <para>Is used to manage the hardware database (hwdb)</para>
|
---|
[1118b17] | 742 | <indexterm zone="ch-system-systemd systemd-hwdb">
|
---|
| 743 | <primary sortas="b-systemd-hwdb">systemd-hwdb</primary>
|
---|
| 744 | </indexterm>
|
---|
| 745 | </listitem>
|
---|
| 746 | </varlistentry>
|
---|
| 747 |
|
---|
[78cc3be] | 748 | <varlistentry id="systemd-id128">
|
---|
| 749 | <term><command>systemd-id128</command></term>
|
---|
| 750 | <listitem>
|
---|
[69854d2a] | 751 | <para>Generates and prints id128 (UUID) strings</para>
|
---|
[78cc3be] | 752 | <indexterm zone="ch-system-systemd systemd-id128">
|
---|
| 753 | <primary sortas="b-systemd-id128">systemd-id128</primary>
|
---|
| 754 | </indexterm>
|
---|
| 755 | </listitem>
|
---|
| 756 | </varlistentry>
|
---|
| 757 |
|
---|
[cba2d4e] | 758 | <varlistentry id="systemd-inhibit">
|
---|
| 759 | <term><command>systemd-inhibit</command></term>
|
---|
| 760 | <listitem>
|
---|
[6dfcfecc] | 761 | <para>Is used to execute a program with a shutdown, sleep or idle
|
---|
| 762 | inhibitor lock taken, preventing an action such as a system shutdown
|
---|
[4c8c128] | 763 | until the process is completed</para>
|
---|
[cba2d4e] | 764 | <indexterm zone="ch-system-systemd systemd-inhibit">
|
---|
| 765 | <primary sortas="b-systemd-inhibit">systemd-inhibit</primary>
|
---|
| 766 | </indexterm>
|
---|
| 767 | </listitem>
|
---|
| 768 | </varlistentry>
|
---|
| 769 |
|
---|
| 770 | <varlistentry id="systemd-machine-id-setup">
|
---|
| 771 | <term><command>systemd-machine-id-setup</command></term>
|
---|
| 772 | <listitem>
|
---|
[6dfcfecc] | 773 | <para>Is used by system installer tools to initialize the machine ID
|
---|
[1118b17] | 774 | stored in <filename>/etc/machine-id</filename> at install time with a
|
---|
| 775 | randomly generated ID</para>
|
---|
[cba2d4e] | 776 | <indexterm zone="ch-system-systemd systemd-machine-id-setup">
|
---|
| 777 | <primary sortas="b-systemd-machine-id-setup">systemd-machine-id-setup</primary>
|
---|
| 778 | </indexterm>
|
---|
| 779 | </listitem>
|
---|
| 780 | </varlistentry>
|
---|
| 781 |
|
---|
[13c8b42] | 782 | <varlistentry id="systemd-mount">
|
---|
| 783 | <term><command>systemd-mount</command></term>
|
---|
| 784 | <listitem>
|
---|
[4c8c128] | 785 | <para>Is used to temporarily mount or automount disks</para>
|
---|
[13c8b42] | 786 | <indexterm zone="ch-system-systemd systemd-mount">
|
---|
| 787 | <primary sortas="b-systemd-mount">systemd-mount</primary>
|
---|
| 788 | </indexterm>
|
---|
| 789 | </listitem>
|
---|
| 790 | </varlistentry>
|
---|
| 791 |
|
---|
[cba2d4e] | 792 | <varlistentry id="systemd-notify">
|
---|
| 793 | <term><command>systemd-notify</command></term>
|
---|
| 794 | <listitem>
|
---|
[69854d2a] | 795 | <para>Is used by daemon scripts to notify the init system of status
|
---|
[1118b17] | 796 | changes</para>
|
---|
[cba2d4e] | 797 | <indexterm zone="ch-system-systemd systemd-notify">
|
---|
| 798 | <primary sortas="b-systemd-notify">systemd-notify</primary>
|
---|
| 799 | </indexterm>
|
---|
| 800 | </listitem>
|
---|
| 801 | </varlistentry>
|
---|
| 802 |
|
---|
| 803 | <varlistentry id="systemd-nspawn">
|
---|
| 804 | <term><command>systemd-nspawn</command></term>
|
---|
| 805 | <listitem>
|
---|
[69854d2a] | 806 | <para>Is used to run a command, or an entire OS, in a light-weight namespace
|
---|
[1118b17] | 807 | container</para>
|
---|
[cba2d4e] | 808 | <indexterm zone="ch-system-systemd systemd-nspawn">
|
---|
| 809 | <primary sortas="b-systemd-nspawn">systemd-nspawn</primary>
|
---|
| 810 | </indexterm>
|
---|
| 811 | </listitem>
|
---|
| 812 | </varlistentry>
|
---|
| 813 |
|
---|
[1118b17] | 814 | <varlistentry id="systemd-path">
|
---|
| 815 | <term><command>systemd-path</command></term>
|
---|
| 816 | <listitem>
|
---|
[6dfcfecc] | 817 | <para>Is used to query system and user paths</para>
|
---|
[1118b17] | 818 | <indexterm zone="ch-system-systemd systemd-path">
|
---|
| 819 | <primary sortas="b-systemd-path">systemd-path</primary>
|
---|
| 820 | </indexterm>
|
---|
| 821 | </listitem>
|
---|
| 822 | </varlistentry>
|
---|
| 823 |
|
---|
[d1fbbd0] | 824 | <varlistentry id="systemd-repart">
|
---|
| 825 | <term><command>systemd-repart</command></term>
|
---|
| 826 | <listitem>
|
---|
[6dfcfecc] | 827 | <para>Is used to grow and add partitions to a partition table when
|
---|
[69854d2a] | 828 | systemd is used with an OS image (e.g. a container)</para>
|
---|
[d1fbbd0] | 829 | <indexterm zone="ch-system-systemd systemd-repart">
|
---|
| 830 | <primary sortas="b-systemd-repart">systemd-repart</primary>
|
---|
| 831 | </indexterm>
|
---|
| 832 | </listitem>
|
---|
| 833 | </varlistentry>
|
---|
| 834 |
|
---|
[1118b17] | 835 | <varlistentry id="systemd-resolve">
|
---|
| 836 | <term><command>systemd-resolve</command></term>
|
---|
| 837 | <listitem>
|
---|
[6dfcfecc] | 838 | <para>Is used to resolve domain names, IPV4 and IPv6 addresses, DNS
|
---|
[1118b17] | 839 | resource records, and services</para>
|
---|
| 840 | <indexterm zone="ch-system-systemd systemd-resolve">
|
---|
| 841 | <primary sortas="b-systemd-resolve">systemd-resolve</primary>
|
---|
| 842 | </indexterm>
|
---|
| 843 | </listitem>
|
---|
| 844 | </varlistentry>
|
---|
| 845 |
|
---|
[cba2d4e] | 846 | <varlistentry id="systemd-run">
|
---|
| 847 | <term><command>systemd-run</command></term>
|
---|
| 848 | <listitem>
|
---|
[6dfcfecc] | 849 | <para>Is used to create and start a transient .service or a .scope
|
---|
[69854d2a] | 850 | unit and run the specified command in it; this is useful for
|
---|
[4c8c128] | 851 | validating systemd units</para>
|
---|
[cba2d4e] | 852 | <indexterm zone="ch-system-systemd systemd-run">
|
---|
| 853 | <primary sortas="b-systemd-run">systemd-run</primary>
|
---|
| 854 | </indexterm>
|
---|
| 855 | </listitem>
|
---|
| 856 | </varlistentry>
|
---|
| 857 |
|
---|
[13c8b42] | 858 | <varlistentry id="systemd-socket-activate">
|
---|
| 859 | <term><command>systemd-socket-activate</command></term>
|
---|
| 860 | <listitem>
|
---|
[6dfcfecc] | 861 | <para>Is used to listen on socket devices and launch a process upon
|
---|
[4c8c128] | 862 | a successful connection to the socket</para>
|
---|
[13c8b42] | 863 | <indexterm zone="ch-system-systemd systemd-socket-activate">
|
---|
| 864 | <primary sortas="b-systemd-socket-activate">systemd-socket-activate</primary>
|
---|
| 865 | </indexterm>
|
---|
| 866 | </listitem>
|
---|
| 867 | </varlistentry>
|
---|
| 868 |
|
---|
[d7a9421] | 869 | <varlistentry id="systemd-sysext">
|
---|
| 870 | <term><command>systemd-sysext</command></term>
|
---|
| 871 | <listitem>
|
---|
[871fd2f] | 872 | <para>Activates system extension images</para>
|
---|
[d7a9421] | 873 | <indexterm zone="ch-system-systemd systemd-sysext">
|
---|
| 874 | <primary sortas="b-systemd-sysext">systemd-sysext</primary>
|
---|
| 875 | </indexterm>
|
---|
| 876 | </listitem>
|
---|
| 877 | </varlistentry>
|
---|
| 878 |
|
---|
[cba2d4e] | 879 | <varlistentry id="systemd-tmpfiles">
|
---|
| 880 | <term><command>systemd-tmpfiles</command></term>
|
---|
| 881 | <listitem>
|
---|
[69854d2a] | 882 | <para>Creates, deletes, and cleans up volatile and temporary files and
|
---|
[1118b17] | 883 | directories, based on the configuration file format and location
|
---|
| 884 | specified in
|
---|
| 885 | <filename class="directory">tmpfiles.d</filename> directories</para>
|
---|
[cba2d4e] | 886 | <indexterm zone="ch-system-systemd systemd-tmpfiles">
|
---|
| 887 | <primary sortas="b-systemd-tmpfiles">systemd-tmpfiles</primary>
|
---|
| 888 | </indexterm>
|
---|
| 889 | </listitem>
|
---|
| 890 | </varlistentry>
|
---|
| 891 |
|
---|
[78cc3be] | 892 | <varlistentry id="systemd-umount">
|
---|
| 893 | <term><command>systemd-umount</command></term>
|
---|
| 894 | <listitem>
|
---|
[6dfcfecc] | 895 | <para>Unmounts mount points</para>
|
---|
[78cc3be] | 896 | <indexterm zone="ch-system-systemd systemd-umount">
|
---|
| 897 | <primary sortas="b-systemd-umount">systemd-umount</primary>
|
---|
| 898 | </indexterm>
|
---|
| 899 | </listitem>
|
---|
| 900 | </varlistentry>
|
---|
| 901 |
|
---|
[cba2d4e] | 902 | <varlistentry id="systemd-tty-ask-password-agent">
|
---|
| 903 | <term><command>systemd-tty-ask-password-agent</command></term>
|
---|
| 904 | <listitem>
|
---|
[d672ab7] | 905 | <para>Is used to list and/or process pending systemd password
|
---|
[6dfcfecc] | 906 | requests</para>
|
---|
[cba2d4e] | 907 | <indexterm zone="ch-system-systemd systemd-tty-ask-password-agent">
|
---|
| 908 | <primary sortas="b-systemd-tty-ask-password-agent">systemd-tty-ask-password-agent</primary>
|
---|
| 909 | </indexterm>
|
---|
| 910 | </listitem>
|
---|
| 911 | </varlistentry>
|
---|
| 912 |
|
---|
| 913 | <varlistentry id="telinit">
|
---|
| 914 | <term><command>telinit</command></term>
|
---|
| 915 | <listitem>
|
---|
[1118b17] | 916 | <para>Tells <command>init</command> which run-level to change
|
---|
| 917 | to</para>
|
---|
[cba2d4e] | 918 | <indexterm zone="ch-system-systemd telinit">
|
---|
| 919 | <primary sortas="b-telinit">telinit</primary>
|
---|
| 920 | </indexterm>
|
---|
| 921 | </listitem>
|
---|
| 922 | </varlistentry>
|
---|
| 923 |
|
---|
| 924 | <varlistentry id="timedatectl">
|
---|
| 925 | <term><command>timedatectl</command></term>
|
---|
| 926 | <listitem>
|
---|
[6dfcfecc] | 927 | <para>Is used to query and change the system clock and its settings
|
---|
[cba2d4e] | 928 | </para>
|
---|
| 929 | <indexterm zone="ch-system-systemd timedatectl">
|
---|
| 930 | <primary sortas="b-timedatectl">timedatectl</primary>
|
---|
[f896e21c] | 931 | </indexterm>
|
---|
| 932 | </listitem>
|
---|
| 933 | </varlistentry>
|
---|
| 934 |
|
---|
| 935 | <varlistentry id="udevadm">
|
---|
| 936 | <term><command>udevadm</command></term>
|
---|
| 937 | <listitem>
|
---|
[d672ab7] | 938 | <para>Is a generic udev administration tool which controls the udevd
|
---|
[69854d2a] | 939 | daemon, provides info from the udev hardware database, monitors
|
---|
[d672ab7] | 940 | uevents, waits for uevents to finish, tests udev configuration, and
|
---|
[6dfcfecc] | 941 | triggers uevents for a given device</para>
|
---|
[cba2d4e] | 942 | <indexterm zone="ch-system-systemd udevadm">
|
---|
[f896e21c] | 943 | <primary sortas="b-udevadm">udevadm</primary>
|
---|
| 944 | </indexterm>
|
---|
| 945 | </listitem>
|
---|
| 946 | </varlistentry>
|
---|
| 947 |
|
---|
[cba2d4e] | 948 | <varlistentry id="libsystemd">
|
---|
| 949 | <term><filename class="libraryfile">libsystemd</filename></term>
|
---|
[f896e21c] | 950 | <listitem>
|
---|
[6dfcfecc] | 951 | <para>Is the main systemd utility library</para>
|
---|
[cba2d4e] | 952 | <indexterm zone="ch-system-systemd libsystemd">
|
---|
| 953 | <primary sortas="c-libsystemd">libsystemd</primary>
|
---|
[f896e21c] | 954 | </indexterm>
|
---|
| 955 | </listitem>
|
---|
| 956 | </varlistentry>
|
---|
| 957 |
|
---|
| 958 | <varlistentry id="libudev">
|
---|
| 959 | <term><filename class="libraryfile">libudev</filename></term>
|
---|
| 960 | <listitem>
|
---|
[6dfcfecc] | 961 | <para>Is a library to access Udev device information</para>
|
---|
[cba2d4e] | 962 | <indexterm zone="ch-system-systemd libudev">
|
---|
[f896e21c] | 963 | <primary sortas="c-libudev">libudev</primary>
|
---|
| 964 | </indexterm>
|
---|
| 965 | </listitem>
|
---|
| 966 | </varlistentry>
|
---|
| 967 |
|
---|
| 968 | </variablelist>
|
---|
| 969 |
|
---|
| 970 | </sect2>
|
---|
| 971 |
|
---|
| 972 | </sect1>
|
---|