[7152faa] | 1 | <?xml version="1.0" encoding="UTF-8"?>
|
---|
[f896e21c] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
|
---|
| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
|
---|
| 4 | <!ENTITY % general-entities SYSTEM "../general.ent">
|
---|
| 5 | %general-entities;
|
---|
| 6 | ]>
|
---|
| 7 |
|
---|
[35a5259] | 8 | <sect1 id="ch-system-systemd" role="wrap" revision="systemd">
|
---|
[cba2d4e] | 9 | <?dbhtml filename="systemd.html"?>
|
---|
[f896e21c] | 10 |
|
---|
| 11 | <sect1info condition="script">
|
---|
[cba2d4e] | 12 | <productname>systemd</productname>
|
---|
[f896e21c] | 13 | <productnumber>&systemd-version;</productnumber>
|
---|
| 14 | <address>&systemd-url;</address>
|
---|
| 15 | </sect1info>
|
---|
| 16 |
|
---|
[cba2d4e] | 17 | <title>Systemd-&systemd-version;</title>
|
---|
[f896e21c] | 18 |
|
---|
[cba2d4e] | 19 | <indexterm zone="ch-system-systemd">
|
---|
[1118b17] | 20 | <primary sortas="a-systemd">systemd</primary>
|
---|
[f896e21c] | 21 | </indexterm>
|
---|
| 22 |
|
---|
| 23 | <sect2 role="package">
|
---|
| 24 | <title/>
|
---|
| 25 |
|
---|
[1118b17] | 26 | <para>The systemd package contains programs for controlling the startup,
|
---|
[cba2d4e] | 27 | running, and shutdown of the system.</para>
|
---|
[f896e21c] | 28 |
|
---|
| 29 | <segmentedlist>
|
---|
| 30 | <segtitle>&buildtime;</segtitle>
|
---|
| 31 | <segtitle>&diskspace;</segtitle>
|
---|
| 32 |
|
---|
| 33 | <seglistitem>
|
---|
[fb386e0] | 34 | <seg>&systemd-fin-sbu;</seg>
|
---|
| 35 | <seg>&systemd-fin-du;</seg>
|
---|
[f896e21c] | 36 | </seglistitem>
|
---|
| 37 | </segmentedlist>
|
---|
| 38 | </sect2>
|
---|
| 39 |
|
---|
| 40 | <sect2 role="installation">
|
---|
[1118b17] | 41 | <title>Installation of systemd</title>
|
---|
[70dcd88] | 42 |
|
---|
[87119fd] | 43 | <para>Remove two unneeded groups,
|
---|
| 44 | <systemitem class="groupname">render</systemitem> and
|
---|
| 45 | <systemitem class="groupname">sgx</systemitem>, from the default udev
|
---|
[896e77e] | 46 | rules:</para>
|
---|
| 47 |
|
---|
[1f201845] | 48 | <screen><userinput remap="pre">sed -i -e 's/GROUP="render"/GROUP="video"/' \
|
---|
[96fa6f2] | 49 | -e 's/GROUP="sgx", //' rules.d/50-udev-default.rules.in</userinput></screen>
|
---|
[6acfe2e] | 50 |
|
---|
[1118b17] | 51 | <para>Prepare systemd for compilation:</para>
|
---|
| 52 |
|
---|
[c556e59] | 53 | <screen><userinput remap="configure">mkdir -p build
|
---|
[04b2165] | 54 | cd build
|
---|
[fc199db] | 55 |
|
---|
[740ee46] | 56 | meson setup \
|
---|
| 57 | --prefix=/usr \
|
---|
[c349b4a] | 58 | --buildtype=release \
|
---|
[0f703541] | 59 | -Ddefault-dnssec=no \
|
---|
| 60 | -Dfirstboot=false \
|
---|
| 61 | -Dinstall-tests=false \
|
---|
| 62 | -Dldconfig=false \
|
---|
| 63 | -Dsysusers=false \
|
---|
| 64 | -Drpmmacrosdir=no \
|
---|
[9afac64] | 65 | -Dhomed=disabled \
|
---|
[0f703541] | 66 | -Duserdb=false \
|
---|
[33c9cb0] | 67 | -Dman=disabled \
|
---|
[22009fb] | 68 | -Dmode=release \
|
---|
[77e340bc] | 69 | -Dpamconfdir=no \
|
---|
[dfde664] | 70 | -Ddev-kvm-mode=0660 \
|
---|
[3864d23] | 71 | -Dnobody-group=nogroup \
|
---|
[73805590] | 72 | -Dsysupdate=disabled \
|
---|
[9afac64] | 73 | -Dukify=disabled \
|
---|
[1446892] | 74 | -Ddocdir=/usr/share/doc/systemd-&systemd-version; \
|
---|
[fc199db] | 75 | ..</userinput></screen>
|
---|
[cba2d4e] | 76 |
|
---|
| 77 | <variablelist>
|
---|
[81ed05f] | 78 | <title>The meaning of the meson options:</title>
|
---|
[cba2d4e] | 79 |
|
---|
[06cdaed] | 80 | <varlistentry>
|
---|
| 81 | <term><parameter>--buildtype=release</parameter></term>
|
---|
| 82 | <listitem>
|
---|
| 83 | <para>This switch overrides the default buildtype
|
---|
[69854d2a] | 84 | (<quote>debug</quote>), which produces unoptimized
|
---|
[06cdaed] | 85 | binaries.</para>
|
---|
| 86 | </listitem>
|
---|
| 87 | </varlistentry>
|
---|
| 88 |
|
---|
[cba2d4e] | 89 | <varlistentry>
|
---|
[81ed05f] | 90 | <term><parameter>-Ddefault-dnssec=no</parameter></term>
|
---|
[cba2d4e] | 91 | <listitem>
|
---|
[81ed05f] | 92 | <para>This switch turns off the experimental DNSSEC support.</para>
|
---|
[cba2d4e] | 93 | </listitem>
|
---|
| 94 | </varlistentry>
|
---|
| 95 |
|
---|
| 96 | <varlistentry>
|
---|
[81ed05f] | 97 | <term><parameter>-Dfirstboot=false</parameter></term>
|
---|
[cba2d4e] | 98 | <listitem>
|
---|
[81ed05f] | 99 | <para>This switch prevents installation of systemd
|
---|
| 100 | services responsible for setting up the system for
|
---|
[69854d2a] | 101 | the first time. These are not useful in LFS, because
|
---|
[81ed05f] | 102 | everything is done manually.</para>
|
---|
[cba2d4e] | 103 | </listitem>
|
---|
| 104 | </varlistentry>
|
---|
| 105 |
|
---|
[e88a471b] | 106 | <varlistentry>
|
---|
| 107 | <term><parameter>-Dinstall-tests=false</parameter></term>
|
---|
| 108 | <listitem>
|
---|
| 109 | <para>This switch prevents installation of the compiled tests.</para>
|
---|
| 110 | </listitem>
|
---|
| 111 | </varlistentry>
|
---|
| 112 |
|
---|
[cba2d4e] | 113 | <varlistentry>
|
---|
[0d84af1] | 114 | <term><parameter>-Dldconfig=false</parameter></term>
|
---|
[cba2d4e] | 115 | <listitem>
|
---|
[0d84af1] | 116 | <para>This switch prevents installation of a systemd unit that runs
|
---|
[69854d2a] | 117 | <command>ldconfig</command> at boot; this is not useful for source
|
---|
| 118 | distributions such as LFS, and makes the boot time longer. Remove
|
---|
| 119 | this option to enable running <command>ldconfig</command> at boot.</para>
|
---|
[cba2d4e] | 120 | </listitem>
|
---|
| 121 | </varlistentry>
|
---|
| 122 |
|
---|
[1118b17] | 123 | <varlistentry>
|
---|
[81ed05f] | 124 | <term><parameter>-Dsysusers=false</parameter></term>
|
---|
[1118b17] | 125 | <listitem>
|
---|
| 126 | <para>This switch prevents installation of systemd
|
---|
| 127 | services responsible for setting up the
|
---|
| 128 | <filename>/etc/group</filename> and
|
---|
| 129 | <filename>/etc/passwd</filename> files. Both files
|
---|
[f09dd59] | 130 | were created in the previous chapter. This daemon is not useful
|
---|
[0a75d62] | 131 | on an LFS system since user accounts are manually created.</para>
|
---|
[cba2d4e] | 132 | </listitem>
|
---|
| 133 | </varlistentry>
|
---|
| 134 |
|
---|
[c556e59] | 135 | <varlistentry>
|
---|
| 136 | <term><parameter>-Drpmmacrosdir=no</parameter></term>
|
---|
| 137 | <listitem>
|
---|
| 138 | <para>This switch disables installation of RPM Macros
|
---|
[69854d2a] | 139 | for use with systemd, because LFS does not support RPM.</para>
|
---|
[c556e59] | 140 | </listitem>
|
---|
| 141 | </varlistentry>
|
---|
[c06f49a] | 142 |
|
---|
| 143 | <varlistentry>
|
---|
[9afac64] | 144 | <term><parameter>-Dhomed=disabled</parameter> and
|
---|
| 145 | <parameter>-Duserdb=false</parameter></term>
|
---|
[c06f49a] | 146 | <listitem>
|
---|
[69854d2a] | 147 | <para>Remove two daemons with dependencies that do not fit
|
---|
| 148 | within the scope of LFS.</para>
|
---|
[c06f49a] | 149 | </listitem>
|
---|
| 150 | </varlistentry>
|
---|
| 151 |
|
---|
[35e0479] | 152 | <varlistentry>
|
---|
[56eed6c] | 153 | <term><parameter>-Dman=disabled</parameter></term>
|
---|
[35e0479] | 154 | <listitem>
|
---|
| 155 | <para>Prevent the generation of man pages to avoid extra
|
---|
| 156 | dependencies. We will install pre-generated man pages for systemd
|
---|
[69854d2a] | 157 | from a tarball.</para>
|
---|
[35e0479] | 158 | </listitem>
|
---|
| 159 | </varlistentry>
|
---|
| 160 |
|
---|
[fe42b2f] | 161 | <varlistentry>
|
---|
| 162 | <term><parameter>-Dmode=release</parameter></term>
|
---|
| 163 | <listitem>
|
---|
| 164 | <para>Disable some features considered experimental by upstream.
|
---|
| 165 | </para>
|
---|
| 166 | </listitem>
|
---|
| 167 | </varlistentry>
|
---|
| 168 |
|
---|
[77e340bc] | 169 | <varlistentry>
|
---|
| 170 | <term><parameter>-Dpamconfdir=no</parameter></term>
|
---|
| 171 | <listitem>
|
---|
| 172 | <para>Prevent the installation of a PAM configuration file not
|
---|
| 173 | functional on LFS.</para>
|
---|
| 174 | </listitem>
|
---|
| 175 | </varlistentry>
|
---|
[dfde664] | 176 |
|
---|
| 177 | <varlistentry>
|
---|
| 178 | <term><parameter>-Ddev-kvm-mode=0660</parameter></term>
|
---|
| 179 | <listitem>
|
---|
| 180 | <para>The default udev rule would allow all users to access
|
---|
| 181 | <filename class='devicefile'>/dev/kvm</filename>. The editors
|
---|
| 182 | consider it dangerous. This option overrides it.</para>
|
---|
| 183 | </listitem>
|
---|
[3864d23] | 184 | </varlistentry>
|
---|
| 185 |
|
---|
| 186 | <varlistentry>
|
---|
| 187 | <term><parameter>-Dnobody-group=nogroup</parameter></term>
|
---|
| 188 | <listitem>
|
---|
[ffecb9e] | 189 | <para>Tell the package the group name with GID 65534 is
|
---|
| 190 | <systemitem class='groupname'>nogroup</systemitem>.</para>
|
---|
[3864d23] | 191 | </listitem>
|
---|
[dfde664] | 192 | </varlistentry>
|
---|
[9afac64] | 193 |
|
---|
[73805590] | 194 | <varlistentry>
|
---|
| 195 | <term><parameter>-Dsysupdate=disabled</parameter></term>
|
---|
| 196 | <listitem>
|
---|
| 197 | <para>Do not install the <command>systemd-sysupdate</command>
|
---|
| 198 | tool. It's designed for automatically upgrading binary distros,
|
---|
| 199 | so it's useless for a basic Linux system built from source.
|
---|
| 200 | And it will report errors on boot if it's enabled but not properly
|
---|
| 201 | configured.</para>
|
---|
| 202 | </listitem>
|
---|
| 203 | </varlistentry>
|
---|
| 204 |
|
---|
[9afac64] | 205 | <varlistentry>
|
---|
| 206 | <term><parameter>-Dukify=disabled</parameter></term>
|
---|
| 207 | <listitem>
|
---|
| 208 | <para>Do not install the <command>systemd-ukify</command> script.
|
---|
| 209 | At runtime this script requires the
|
---|
| 210 | <application>pefile</application> Python module that neither LFS
|
---|
| 211 | nor BLFS provides.</para>
|
---|
| 212 | </listitem>
|
---|
| 213 | </varlistentry>
|
---|
| 214 |
|
---|
[cba2d4e] | 215 | </variablelist>
|
---|
| 216 |
|
---|
| 217 | <para>Compile the package:</para>
|
---|
| 218 |
|
---|
[69c4524] | 219 | <screen><userinput remap="make">ninja</userinput></screen>
|
---|
[f896e21c] | 220 |
|
---|
[1e7341fd] | 221 | <para>Some tests need a basic <filename>/etc/os-release</filename> file.
|
---|
| 222 | To test the results, issue:</para>
|
---|
| 223 |
|
---|
| 224 | <screen><userinput remap="test">echo 'NAME="Linux From Scratch"' > /etc/os-release
|
---|
| 225 | ninja test</userinput></screen>
|
---|
| 226 |
|
---|
| 227 | <!-- This test needs /run/systemd/inaccessible/sock, which only exists
|
---|
| 228 | after initializing the system with systemd. -->
|
---|
| 229 | <para>One test named <literal>systemd:core / test-namespace</literal>
|
---|
[5818041] | 230 | is known to fail in the LFS chroot environment. Two other tests,
|
---|
| 231 | <literal>test-chase</literal> and <literal>test-systemd-tmpfiles</literal>,
|
---|
| 232 | are also known to fail. Some other tests may fail because they depend
|
---|
| 233 | on various kernel configuration options.</para>
|
---|
[1e7341fd] | 234 |
|
---|
[f896e21c] | 235 | <para>Install the package:</para>
|
---|
| 236 |
|
---|
[69c4524] | 237 | <screen><userinput remap="install">ninja install</userinput></screen>
|
---|
[cba2d4e] | 238 |
|
---|
[35e0479] | 239 | <para>Install the man pages:</para>
|
---|
[c556e59] | 240 |
|
---|
[b4008bb] | 241 | <!-- Please make sure systemd man pages tarball has a common leading
|
---|
| 242 | component in the path. -->
|
---|
[57f1678] | 243 | <screen><userinput remap="install">tar -xf ../../systemd-man-pages-&systemd-version;.tar.xz \
|
---|
| 244 | --no-same-owner --strip-components=1 \
|
---|
| 245 | -C /usr/share/man</userinput></screen>
|
---|
[c556e59] | 246 |
|
---|
[cba2d4e] | 247 | <para>Create the <filename>/etc/machine-id</filename> file needed by
|
---|
[1118b17] | 248 | <command>systemd-journald</command>:</para>
|
---|
[053b206] | 249 |
|
---|
[15f0f21] | 250 | <screen><userinput remap="adjust">systemd-machine-id-setup</userinput></screen>
|
---|
[cba2d4e] | 251 |
|
---|
[69854d2a] | 252 | <para>Set up the basic target structure:</para>
|
---|
[8a0d39ee] | 253 |
|
---|
| 254 | <screen><userinput remap="adjust">systemctl preset-all</userinput></screen>
|
---|
[777b5cb] | 255 |
|
---|
[a815ec7] | 256 | <!-- dev: 50-pid-max.conf is not removed in BLFS, so I commented the following out.
|
---|
| 257 | If it causes any trouble, we can add this back and also copy it into BLFS -->
|
---|
| 258 | <!--
|
---|
[777b5cb] | 259 | <para>Prevent systemd from resetting the maximum PID value which causes
|
---|
| 260 | some problems with packages and units in BLFS:</para>
|
---|
[d672ab7] | 261 |
|
---|
[c06f49a] | 262 | <screen><userinput remap="adjust">rm -f /usr/lib/sysctl.d/50-pid-max.conf</userinput></screen>
|
---|
[a815ec7] | 263 | -->
|
---|
[777b5cb] | 264 |
|
---|
[f896e21c] | 265 | </sect2>
|
---|
| 266 |
|
---|
[cba2d4e] | 267 | <sect2 id="contents-systemd" role="content">
|
---|
[1118b17] | 268 | <title>Contents of systemd</title>
|
---|
[f896e21c] | 269 |
|
---|
| 270 | <segmentedlist>
|
---|
| 271 | <segtitle>Installed programs</segtitle>
|
---|
| 272 | <segtitle>Installed libraries</segtitle>
|
---|
| 273 | <segtitle>Installed directories</segtitle>
|
---|
| 274 |
|
---|
| 275 | <seglistitem>
|
---|
[662f649] | 276 | <seg>busctl, coredumpctl, halt (symlink to systemctl),
|
---|
[78cc3be] | 277 | hostnamectl, init, journalctl, kernel-install, localectl, loginctl,
|
---|
[c2ccad1] | 278 | machinectl, mount.ddi (symlink to systemd-dissect), networkctl,
|
---|
| 279 | oomctl, portablectl, poweroff (symlink to
|
---|
[78cc3be] | 280 | systemctl), reboot (symlink to systemctl), resolvconf (symlink to
|
---|
| 281 | resolvectl), resolvectl, runlevel (symlink to systemctl), shutdown
|
---|
[2efe1e8] | 282 | (symlink to systemctl), systemctl, systemd-ac-power, systemd-analyze,
|
---|
[1118b17] | 283 | systemd-ask-password, systemd-cat, systemd-cgls, systemd-cgtop,
|
---|
[c2ccad1] | 284 | systemd-confext (symlink to systemd-sysext), systemd-creds,
|
---|
| 285 | systemd-delta, systemd-detect-virt,
|
---|
[d7a9421] | 286 | systemd-dissect, systemd-escape, systemd-hwdb, systemd-id128,
|
---|
| 287 | systemd-inhibit, systemd-machine-id-setup,
|
---|
[78cc3be] | 288 | systemd-mount, systemd-notify, systemd-nspawn, systemd-path,
|
---|
[c06f49a] | 289 | systemd-repart, systemd-resolve (symlink to resolvectl), systemd-run,
|
---|
[d7a9421] | 290 | systemd-socket-activate, systemd-stdio-bridge, systemd-sysext,
|
---|
| 291 | systemd-tmpfiles, systemd-tty-ask-password-agent,
|
---|
| 292 | systemd-umount (symlink to systemd-mount),
|
---|
| 293 | telinit (symlink to systemctl), timedatectl, and udevadm</seg>
|
---|
[1118b17] | 294 | <seg>libnss_myhostname.so.2, libnss_mymachines.so.2,
|
---|
[78cc3be] | 295 | libnss_resolve.so.2, libnss_systemd.so.2,
|
---|
[d7a9421] | 296 | libsystemd.so, libsystemd-shared-&systemd-version;.so (in /usr/lib/systemd),
|
---|
[a840e59] | 297 | and libudev.so</seg>
|
---|
[59d90df] | 298 | <seg>/etc/binfmt.d, /etc/init.d, /etc/kernel, /etc/modules-load.d,
|
---|
[cba2d4e] | 299 | /etc/sysctl.d, /etc/systemd, /etc/tmpfiles.d, /etc/udev,
|
---|
[d7a9421] | 300 | /etc/xdg/systemd, /usr/lib/systemd, /usr/lib/udev, /usr/include/systemd,
|
---|
[d672ab7] | 301 | /usr/lib/binfmt.d, /usr/lib/environment.d, /usr/lib/kernel,
|
---|
| 302 | /usr/lib/modules-load.d, /usr/lib/sysctl.d, /usr/lib/systemd,
|
---|
[2ca70d33] | 303 | /usr/lib/tmpfiles.d,
|
---|
[1118b17] | 304 | /usr/share/doc/systemd-&systemd-version;, /usr/share/factory,
|
---|
| 305 | /usr/share/systemd, /var/lib/systemd, and /var/log/journal</seg>
|
---|
[f896e21c] | 306 | </seglistitem>
|
---|
| 307 | </segmentedlist>
|
---|
| 308 |
|
---|
| 309 | <variablelist>
|
---|
| 310 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
---|
| 311 | <?dbfo list-presentation="list"?>
|
---|
| 312 | <?dbhtml list-presentation="table"?>
|
---|
| 313 |
|
---|
[cba2d4e] | 314 | <varlistentry id="busctl">
|
---|
| 315 | <term><command>busctl</command></term>
|
---|
| 316 | <listitem>
|
---|
[9e7475a] | 317 | <para>Is used to introspect and monitor the D-Bus bus</para>
|
---|
[cba2d4e] | 318 | <indexterm zone="ch-system-systemd busctl">
|
---|
| 319 | <primary sortas="b-busctl">busctl</primary>
|
---|
| 320 | </indexterm>
|
---|
| 321 | </listitem>
|
---|
| 322 | </varlistentry>
|
---|
| 323 |
|
---|
[1118b17] | 324 | <varlistentry id="coredumpctl">
|
---|
| 325 | <term><command>coredumpctl</command></term>
|
---|
| 326 | <listitem>
|
---|
[9e7475a] | 327 | <para>Is used to retrieve coredumps from the systemd journal</para>
|
---|
[1118b17] | 328 | <indexterm zone="ch-system-systemd coredumpctl">
|
---|
| 329 | <primary sortas="b-coredumpctl">coredumpctl</primary>
|
---|
| 330 | </indexterm>
|
---|
| 331 | </listitem>
|
---|
| 332 | </varlistentry>
|
---|
| 333 |
|
---|
[cba2d4e] | 334 | <varlistentry id="halt">
|
---|
| 335 | <term><command>halt</command></term>
|
---|
| 336 | <listitem>
|
---|
| 337 | <para>Normally invokes <command>shutdown</command> with the
|
---|
| 338 | <parameter>-h</parameter> option, except when already in run-level 0,
|
---|
[69854d2a] | 339 | when it tells the kernel to halt the system; it notes in the
|
---|
[cba2d4e] | 340 | file <filename>/var/log/wtmp</filename> that the system is being
|
---|
[1118b17] | 341 | brought down</para>
|
---|
[cba2d4e] | 342 | <indexterm zone="ch-system-systemd halt">
|
---|
| 343 | <primary sortas="b-halt">halt</primary>
|
---|
| 344 | </indexterm>
|
---|
| 345 | </listitem>
|
---|
| 346 | </varlistentry>
|
---|
| 347 |
|
---|
| 348 | <varlistentry id="hostnamectl">
|
---|
| 349 | <term><command>hostnamectl</command></term>
|
---|
| 350 | <listitem>
|
---|
[9e7475a] | 351 | <para>Is used to query and change the system hostname and related
|
---|
[1118b17] | 352 | settings</para>
|
---|
[cba2d4e] | 353 | <indexterm zone="ch-system-systemd hostnamectl">
|
---|
| 354 | <primary sortas="b-hostnamectl">hostnamectl</primary>
|
---|
| 355 | </indexterm>
|
---|
| 356 | </listitem>
|
---|
| 357 | </varlistentry>
|
---|
| 358 |
|
---|
| 359 | <varlistentry id="init">
|
---|
| 360 | <term><command>init</command></term>
|
---|
| 361 | <listitem>
|
---|
[69854d2a] | 362 | <para>Is the first process to be started after the kernel has initialized
|
---|
| 363 | the hardware; <command>init</command> takes over the boot process and starts the
|
---|
| 364 | processes specified by its configuration files; in this case, it starts
|
---|
[8d35535] | 365 | systemd</para>
|
---|
[cba2d4e] | 366 | <indexterm zone="ch-system-systemd init">
|
---|
| 367 | <primary sortas="b-init">init</primary>
|
---|
| 368 | </indexterm>
|
---|
| 369 | </listitem>
|
---|
| 370 | </varlistentry>
|
---|
| 371 |
|
---|
| 372 | <varlistentry id="journalctl">
|
---|
| 373 | <term><command>journalctl</command></term>
|
---|
| 374 | <listitem>
|
---|
[9e7475a] | 375 | <para>Is used to query the contents of the systemd journal</para>
|
---|
[cba2d4e] | 376 | <indexterm zone="ch-system-systemd journalctl">
|
---|
| 377 | <primary sortas="b-journalctl">journalctl</primary>
|
---|
| 378 | </indexterm>
|
---|
| 379 | </listitem>
|
---|
| 380 | </varlistentry>
|
---|
| 381 |
|
---|
| 382 | <varlistentry id="kernel-install">
|
---|
| 383 | <term><command>kernel-install</command></term>
|
---|
| 384 | <listitem>
|
---|
[9e7475a] | 385 | <para>Is used to add and remove kernel and initramfs images to and
|
---|
[69854d2a] | 386 | from /boot; in LFS, this is done manually</para>
|
---|
[cba2d4e] | 387 | <indexterm zone="ch-system-systemd kernel-install">
|
---|
| 388 | <primary sortas="b-kernel-install">kernel-install</primary>
|
---|
| 389 | </indexterm>
|
---|
| 390 | </listitem>
|
---|
| 391 | </varlistentry>
|
---|
| 392 |
|
---|
| 393 | <varlistentry id="localectl">
|
---|
| 394 | <term><command>localectl</command></term>
|
---|
| 395 | <listitem>
|
---|
[9e7475a] | 396 | <para>Is used to query and change the system locale and keyboard layout
|
---|
[1118b17] | 397 | settings</para>
|
---|
[cba2d4e] | 398 | <indexterm zone="ch-system-systemd localectl">
|
---|
| 399 | <primary sortas="b-localectl">localectl</primary>
|
---|
| 400 | </indexterm>
|
---|
| 401 | </listitem>
|
---|
| 402 | </varlistentry>
|
---|
| 403 |
|
---|
| 404 | <varlistentry id="loginctl">
|
---|
| 405 | <term><command>loginctl</command></term>
|
---|
| 406 | <listitem>
|
---|
[9e7475a] | 407 | <para>Is used to introspect and control the state of the systemd Login
|
---|
[1118b17] | 408 | Manager</para>
|
---|
[cba2d4e] | 409 | <indexterm zone="ch-system-systemd loginctl">
|
---|
| 410 | <primary sortas="b-loginctl">loginctl</primary>
|
---|
| 411 | </indexterm>
|
---|
| 412 | </listitem>
|
---|
| 413 | </varlistentry>
|
---|
| 414 |
|
---|
| 415 | <varlistentry id="machinectl">
|
---|
| 416 | <term><command>machinectl</command></term>
|
---|
| 417 | <listitem>
|
---|
[9e7475a] | 418 | <para>Is used to introspect and control the state of the systemd Virtual
|
---|
[cba2d4e] | 419 | Machine and Container Registration Manager</para>
|
---|
| 420 | <indexterm zone="ch-system-systemd machinectl">
|
---|
| 421 | <primary sortas="b-machinectl">machinectl</primary>
|
---|
| 422 | </indexterm>
|
---|
| 423 | </listitem>
|
---|
| 424 | </varlistentry>
|
---|
| 425 |
|
---|
[1118b17] | 426 | <varlistentry id="networkctl">
|
---|
| 427 | <term><command>networkctl</command></term>
|
---|
| 428 | <listitem>
|
---|
[d672ab7] | 429 | <para>Is used to introspect and configure the state of the network
|
---|
[9e7475a] | 430 | links configured by systemd-networkd</para>
|
---|
[1118b17] | 431 | <indexterm zone="ch-system-systemd networkctl">
|
---|
| 432 | <primary sortas="b-networkctl">networkctl</primary>
|
---|
| 433 | </indexterm>
|
---|
| 434 | </listitem>
|
---|
| 435 | </varlistentry>
|
---|
| 436 |
|
---|
[d7a9421] | 437 | <varlistentry id="oomctl">
|
---|
| 438 | <term><command>oomctl</command></term>
|
---|
| 439 | <listitem>
|
---|
| 440 | <para>Controls the systemd Out Of Memory daemon</para>
|
---|
| 441 | <indexterm zone="ch-system-systemd oomctl">
|
---|
| 442 | <primary sortas="b-oomctl">oomctl</primary>
|
---|
| 443 | </indexterm>
|
---|
| 444 | </listitem>
|
---|
| 445 | </varlistentry>
|
---|
| 446 |
|
---|
[78cc3be] | 447 | <varlistentry id="portablectl">
|
---|
| 448 | <term><command>portablectl</command></term>
|
---|
| 449 | <listitem>
|
---|
[9e7475a] | 450 | <para>Is used to attach or detach portable services from the local
|
---|
[78cc3be] | 451 | system</para>
|
---|
| 452 | <indexterm zone="ch-system-systemd portablectl">
|
---|
| 453 | <primary sortas="b-portablectl">portablectl</primary>
|
---|
| 454 | </indexterm>
|
---|
| 455 | </listitem>
|
---|
| 456 | </varlistentry>
|
---|
| 457 |
|
---|
[cba2d4e] | 458 | <varlistentry id="poweroff">
|
---|
| 459 | <term><command>poweroff</command></term>
|
---|
| 460 | <listitem>
|
---|
[9e7475a] | 461 | <para>Instructs the kernel to halt the system and switch off the computer
|
---|
[1118b17] | 462 | (see <command>halt</command>)</para>
|
---|
[cba2d4e] | 463 | <indexterm zone="ch-system-systemd poweroff">
|
---|
| 464 | <primary sortas="b-poweroff">poweroff</primary>
|
---|
| 465 | </indexterm>
|
---|
| 466 | </listitem>
|
---|
| 467 | </varlistentry>
|
---|
| 468 |
|
---|
| 469 | <varlistentry id="reboot">
|
---|
| 470 | <term><command>reboot</command></term>
|
---|
[f896e21c] | 471 | <listitem>
|
---|
[9e7475a] | 472 | <para>Instructs the kernel to reboot the system (see
|
---|
[1118b17] | 473 | <command>halt</command>)</para>
|
---|
[cba2d4e] | 474 | <indexterm zone="ch-system-systemd reboot">
|
---|
| 475 | <primary sortas="b-reboot">reboot</primary>
|
---|
[f896e21c] | 476 | </indexterm>
|
---|
| 477 | </listitem>
|
---|
| 478 | </varlistentry>
|
---|
| 479 |
|
---|
[78cc3be] | 480 | <varlistentry id="resolvconf">
|
---|
| 481 | <term><command>resolvconf</command></term>
|
---|
| 482 | <listitem>
|
---|
[9e7475a] | 483 | <para>Registers DNS server and domain configuration with
|
---|
[93058448] | 484 | <command>systemd-resolved</command></para>
|
---|
[78cc3be] | 485 | <indexterm zone="ch-system-systemd resolvconf">
|
---|
| 486 | <primary sortas="b-resolvconf">resolvconf</primary>
|
---|
| 487 | </indexterm>
|
---|
| 488 | </listitem>
|
---|
| 489 | </varlistentry>
|
---|
| 490 |
|
---|
| 491 | <varlistentry id="resolvectl">
|
---|
| 492 | <term><command>resolvectl</command></term>
|
---|
| 493 | <listitem>
|
---|
[9e7475a] | 494 | <para>Sends control commands to the network name resolution
|
---|
| 495 | manager, or resolves domain names, IPv4 and IPv6 addresses,
|
---|
[8d35535] | 496 | DNS records, and services</para>
|
---|
[78cc3be] | 497 | <indexterm zone="ch-system-systemd resolvectl">
|
---|
| 498 | <primary sortas="b-resolvectl">resolvectl</primary>
|
---|
| 499 | </indexterm>
|
---|
| 500 | </listitem>
|
---|
| 501 | </varlistentry>
|
---|
| 502 |
|
---|
[cba2d4e] | 503 | <varlistentry id="runlevel">
|
---|
| 504 | <term><command>runlevel</command></term>
|
---|
[f896e21c] | 505 | <listitem>
|
---|
[9e7475a] | 506 | <para>Outputs the previous and the current run-level, as noted in the
|
---|
[02776dff] | 507 | last run-level record in <filename>/run/utmp</filename></para>
|
---|
[cba2d4e] | 508 | <indexterm zone="ch-system-systemd runlevel">
|
---|
| 509 | <primary sortas="b-runlevel">runlevel</primary>
|
---|
[f896e21c] | 510 | </indexterm>
|
---|
| 511 | </listitem>
|
---|
| 512 | </varlistentry>
|
---|
| 513 |
|
---|
[cba2d4e] | 514 | <varlistentry id="shutdown">
|
---|
| 515 | <term><command>shutdown</command></term>
|
---|
[f896e21c] | 516 | <listitem>
|
---|
[d672ab7] | 517 | <para>Brings the system down in a safe and secure manner, signaling
|
---|
[9e7475a] | 518 | all processes and notifying all logged-in users</para>
|
---|
[cba2d4e] | 519 | <indexterm zone="ch-system-systemd shutdown">
|
---|
| 520 | <primary sortas="b-shutdown">shutdown</primary>
|
---|
[f896e21c] | 521 | </indexterm>
|
---|
| 522 | </listitem>
|
---|
| 523 | </varlistentry>
|
---|
| 524 |
|
---|
[cba2d4e] | 525 | <varlistentry id="systemctl">
|
---|
| 526 | <term><command>systemctl</command></term>
|
---|
[f896e21c] | 527 | <listitem>
|
---|
[9e7475a] | 528 | <para>Is used to introspect and control the state of the systemd system
|
---|
[1118b17] | 529 | and service manager</para>
|
---|
[cba2d4e] | 530 | <indexterm zone="ch-system-systemd systemctl">
|
---|
| 531 | <primary sortas="b-systemctl">systemctl</primary>
|
---|
| 532 | </indexterm>
|
---|
| 533 | </listitem>
|
---|
| 534 | </varlistentry>
|
---|
| 535 |
|
---|
[2efe1e8] | 536 | <varlistentry id="systemd-ac-power">
|
---|
| 537 | <term><command>systemd-ac-power</command></term>
|
---|
| 538 | <listitem>
|
---|
| 539 | <para>Reports whether the system is connected to an external
|
---|
| 540 | power source.</para>
|
---|
| 541 | <indexterm zone="ch-system-systemd systemd-ac-power">
|
---|
| 542 | <primary sortas="b-systemd-ac-power">systemd-ac-power</primary>
|
---|
| 543 | </indexterm>
|
---|
| 544 | </listitem>
|
---|
| 545 | </varlistentry>
|
---|
| 546 |
|
---|
[cba2d4e] | 547 | <varlistentry id="systemd-analyze">
|
---|
| 548 | <term><command>systemd-analyze</command></term>
|
---|
| 549 | <listitem>
|
---|
[69854d2a] | 550 | <para>Is used to analyze system startup performance,
|
---|
| 551 | as well as identify troublesome systemd units</para>
|
---|
[cba2d4e] | 552 | <indexterm zone="ch-system-systemd systemd-analyze">
|
---|
| 553 | <primary sortas="b-systemd-analyze">systemd-analyze</primary>
|
---|
| 554 | </indexterm>
|
---|
| 555 | </listitem>
|
---|
| 556 | </varlistentry>
|
---|
| 557 |
|
---|
| 558 | <varlistentry id="systemd-ask-password">
|
---|
| 559 | <term><command>systemd-ask-password</command></term>
|
---|
| 560 | <listitem>
|
---|
[9e7475a] | 561 | <para>Is used to query a system password or passphrase from the user,
|
---|
[69854d2a] | 562 | using a message specified on the Linux command line</para>
|
---|
[cba2d4e] | 563 | <indexterm zone="ch-system-systemd systemd-ask-password">
|
---|
| 564 | <primary sortas="b-systemd-ask-password">systemd-ask-password</primary>
|
---|
| 565 | </indexterm>
|
---|
| 566 | </listitem>
|
---|
| 567 | </varlistentry>
|
---|
| 568 |
|
---|
| 569 | <varlistentry id="systemd-cat">
|
---|
| 570 | <term><command>systemd-cat</command></term>
|
---|
| 571 | <listitem>
|
---|
[9e7475a] | 572 | <para>Is used to connect the STDOUT and STDERR outputs of a process
|
---|
[8d35535] | 573 | with the systemd journal
|
---|
[cba2d4e] | 574 | </para>
|
---|
| 575 | <indexterm zone="ch-system-systemd systemd-cat">
|
---|
| 576 | <primary sortas="b-systemd-cat">systemd-cat</primary>
|
---|
| 577 | </indexterm>
|
---|
| 578 | </listitem>
|
---|
| 579 | </varlistentry>
|
---|
| 580 |
|
---|
| 581 | <varlistentry id="systemd-cgls">
|
---|
| 582 | <term><command>systemd-cgls</command></term>
|
---|
| 583 | <listitem>
|
---|
[1118b17] | 584 | <para>Recursively shows the contents of the selected Linux control
|
---|
| 585 | group hierarchy in a tree</para>
|
---|
[cba2d4e] | 586 | <indexterm zone="ch-system-systemd systemd-cgls">
|
---|
| 587 | <primary sortas="b-systemd-cgls">systemd-cgls</primary>
|
---|
| 588 | </indexterm>
|
---|
| 589 | </listitem>
|
---|
| 590 | </varlistentry>
|
---|
| 591 |
|
---|
| 592 | <varlistentry id="systemd-cgtop">
|
---|
| 593 | <term><command>systemd-cgtop</command></term>
|
---|
| 594 | <listitem>
|
---|
[1118b17] | 595 | <para>Shows the top control groups of the local Linux control group
|
---|
[69854d2a] | 596 | hierarchy, ordered by their CPU, memory and disk I/O loads</para>
|
---|
[cba2d4e] | 597 | <indexterm zone="ch-system-systemd systemd-cgtop">
|
---|
| 598 | <primary sortas="b-systemd-cgtop">systemd-cgtop</primary>
|
---|
| 599 | </indexterm>
|
---|
| 600 | </listitem>
|
---|
| 601 | </varlistentry>
|
---|
| 602 |
|
---|
[662f649] | 603 | <varlistentry id="systemd-creds">
|
---|
| 604 | <term><command>systemd-creds</command></term>
|
---|
[d7a9421] | 605 | <listitem>
|
---|
[9f0a642] | 606 | <para>Displays and processes credentials</para>
|
---|
[662f649] | 607 | <indexterm zone="ch-system-systemd systemd-creds">
|
---|
| 608 | <primary sortas="b-systemd-creds">systemd-creds</primary>
|
---|
[d7a9421] | 609 | </indexterm>
|
---|
| 610 | </listitem>
|
---|
| 611 | </varlistentry>
|
---|
| 612 |
|
---|
[cba2d4e] | 613 | <varlistentry id="systemd-delta">
|
---|
| 614 | <term><command>systemd-delta</command></term>
|
---|
| 615 | <listitem>
|
---|
[9e7475a] | 616 | <para>Is used to identify and compare configuration files in
|
---|
[69854d2a] | 617 | <filename class="directory">/etc</filename> that override the defaults
|
---|
| 618 | in <filename class="directory">/usr</filename></para>
|
---|
[cba2d4e] | 619 | <indexterm zone="ch-system-systemd systemd-delta">
|
---|
| 620 | <primary sortas="b-systemd-delta">systemd-delta</primary>
|
---|
| 621 | </indexterm>
|
---|
| 622 | </listitem>
|
---|
| 623 | </varlistentry>
|
---|
| 624 |
|
---|
| 625 | <varlistentry id="systemd-detect-virt">
|
---|
| 626 | <term><command>systemd-detect-virt</command></term>
|
---|
| 627 | <listitem>
|
---|
[9e7475a] | 628 | <para>Detects whether the system is being run in a virtual
|
---|
[8d35535] | 629 | environment, and adjusts udev accordingly</para>
|
---|
[cba2d4e] | 630 | <indexterm zone="ch-system-systemd systemd-detect-virt">
|
---|
| 631 | <primary sortas="b-systemd-detect-virt">systemd-detect-virt</primary>
|
---|
| 632 | </indexterm>
|
---|
| 633 | </listitem>
|
---|
| 634 | </varlistentry>
|
---|
| 635 |
|
---|
[22009fb] | 636 | <varlistentry id="systemd-dissect">
|
---|
| 637 | <term><command>systemd-dissect</command></term>
|
---|
| 638 | <listitem>
|
---|
[8d35535] | 639 | <para>Is used to inspect OS disk images</para>
|
---|
[22009fb] | 640 | <indexterm zone="ch-system-systemd systemd-dissect">
|
---|
| 641 | <primary sortas="b-systemd-dissect">systemd-dissect</primary>
|
---|
| 642 | </indexterm>
|
---|
| 643 | </listitem>
|
---|
| 644 | </varlistentry>
|
---|
| 645 |
|
---|
[1118b17] | 646 | <varlistentry id="systemd-escape">
|
---|
| 647 | <term><command>systemd-escape</command></term>
|
---|
| 648 | <listitem>
|
---|
[9e7475a] | 649 | <para>Is used to escape strings for inclusion in systemd unit
|
---|
[1118b17] | 650 | names</para>
|
---|
| 651 | <indexterm zone="ch-system-systemd systemd-escape">
|
---|
| 652 | <primary sortas="b-systemd-escape">systemd-escape</primary>
|
---|
| 653 | </indexterm>
|
---|
| 654 | </listitem>
|
---|
| 655 | </varlistentry>
|
---|
| 656 |
|
---|
| 657 | <varlistentry id="systemd-hwdb">
|
---|
| 658 | <term><command>systemd-hwdb</command></term>
|
---|
| 659 | <listitem>
|
---|
[9e7475a] | 660 | <para>Is used to manage the hardware database (hwdb)</para>
|
---|
[1118b17] | 661 | <indexterm zone="ch-system-systemd systemd-hwdb">
|
---|
| 662 | <primary sortas="b-systemd-hwdb">systemd-hwdb</primary>
|
---|
| 663 | </indexterm>
|
---|
| 664 | </listitem>
|
---|
| 665 | </varlistentry>
|
---|
| 666 |
|
---|
[78cc3be] | 667 | <varlistentry id="systemd-id128">
|
---|
| 668 | <term><command>systemd-id128</command></term>
|
---|
| 669 | <listitem>
|
---|
[69854d2a] | 670 | <para>Generates and prints id128 (UUID) strings</para>
|
---|
[78cc3be] | 671 | <indexterm zone="ch-system-systemd systemd-id128">
|
---|
| 672 | <primary sortas="b-systemd-id128">systemd-id128</primary>
|
---|
| 673 | </indexterm>
|
---|
| 674 | </listitem>
|
---|
| 675 | </varlistentry>
|
---|
| 676 |
|
---|
[cba2d4e] | 677 | <varlistentry id="systemd-inhibit">
|
---|
| 678 | <term><command>systemd-inhibit</command></term>
|
---|
| 679 | <listitem>
|
---|
[9e7475a] | 680 | <para>Is used to execute a program with a shutdown, sleep or idle
|
---|
| 681 | inhibitor lock taken, preventing an action such as a system shutdown
|
---|
[8d35535] | 682 | until the process is completed</para>
|
---|
[cba2d4e] | 683 | <indexterm zone="ch-system-systemd systemd-inhibit">
|
---|
| 684 | <primary sortas="b-systemd-inhibit">systemd-inhibit</primary>
|
---|
| 685 | </indexterm>
|
---|
| 686 | </listitem>
|
---|
| 687 | </varlistentry>
|
---|
| 688 |
|
---|
| 689 | <varlistentry id="systemd-machine-id-setup">
|
---|
| 690 | <term><command>systemd-machine-id-setup</command></term>
|
---|
| 691 | <listitem>
|
---|
[9e7475a] | 692 | <para>Is used by system installer tools to initialize the machine ID
|
---|
[1118b17] | 693 | stored in <filename>/etc/machine-id</filename> at install time with a
|
---|
| 694 | randomly generated ID</para>
|
---|
[cba2d4e] | 695 | <indexterm zone="ch-system-systemd systemd-machine-id-setup">
|
---|
| 696 | <primary sortas="b-systemd-machine-id-setup">systemd-machine-id-setup</primary>
|
---|
| 697 | </indexterm>
|
---|
| 698 | </listitem>
|
---|
| 699 | </varlistentry>
|
---|
| 700 |
|
---|
[13c8b42] | 701 | <varlistentry id="systemd-mount">
|
---|
| 702 | <term><command>systemd-mount</command></term>
|
---|
| 703 | <listitem>
|
---|
[8d35535] | 704 | <para>Is used to temporarily mount or automount disks</para>
|
---|
[13c8b42] | 705 | <indexterm zone="ch-system-systemd systemd-mount">
|
---|
| 706 | <primary sortas="b-systemd-mount">systemd-mount</primary>
|
---|
| 707 | </indexterm>
|
---|
| 708 | </listitem>
|
---|
| 709 | </varlistentry>
|
---|
| 710 |
|
---|
[cba2d4e] | 711 | <varlistentry id="systemd-notify">
|
---|
| 712 | <term><command>systemd-notify</command></term>
|
---|
| 713 | <listitem>
|
---|
[69854d2a] | 714 | <para>Is used by daemon scripts to notify the init system of status
|
---|
[1118b17] | 715 | changes</para>
|
---|
[cba2d4e] | 716 | <indexterm zone="ch-system-systemd systemd-notify">
|
---|
| 717 | <primary sortas="b-systemd-notify">systemd-notify</primary>
|
---|
| 718 | </indexterm>
|
---|
| 719 | </listitem>
|
---|
| 720 | </varlistentry>
|
---|
| 721 |
|
---|
| 722 | <varlistentry id="systemd-nspawn">
|
---|
| 723 | <term><command>systemd-nspawn</command></term>
|
---|
| 724 | <listitem>
|
---|
[69854d2a] | 725 | <para>Is used to run a command, or an entire OS, in a light-weight namespace
|
---|
[1118b17] | 726 | container</para>
|
---|
[cba2d4e] | 727 | <indexterm zone="ch-system-systemd systemd-nspawn">
|
---|
| 728 | <primary sortas="b-systemd-nspawn">systemd-nspawn</primary>
|
---|
| 729 | </indexterm>
|
---|
| 730 | </listitem>
|
---|
| 731 | </varlistentry>
|
---|
| 732 |
|
---|
[1118b17] | 733 | <varlistentry id="systemd-path">
|
---|
| 734 | <term><command>systemd-path</command></term>
|
---|
| 735 | <listitem>
|
---|
[9e7475a] | 736 | <para>Is used to query system and user paths</para>
|
---|
[1118b17] | 737 | <indexterm zone="ch-system-systemd systemd-path">
|
---|
| 738 | <primary sortas="b-systemd-path">systemd-path</primary>
|
---|
| 739 | </indexterm>
|
---|
| 740 | </listitem>
|
---|
| 741 | </varlistentry>
|
---|
| 742 |
|
---|
[c06f49a] | 743 | <varlistentry id="systemd-repart">
|
---|
| 744 | <term><command>systemd-repart</command></term>
|
---|
| 745 | <listitem>
|
---|
[9e7475a] | 746 | <para>Is used to grow and add partitions to a partition table when
|
---|
[69854d2a] | 747 | systemd is used with an OS image (e.g. a container)</para>
|
---|
[c06f49a] | 748 | <indexterm zone="ch-system-systemd systemd-repart">
|
---|
| 749 | <primary sortas="b-systemd-repart">systemd-repart</primary>
|
---|
| 750 | </indexterm>
|
---|
| 751 | </listitem>
|
---|
| 752 | </varlistentry>
|
---|
| 753 |
|
---|
[1118b17] | 754 | <varlistentry id="systemd-resolve">
|
---|
| 755 | <term><command>systemd-resolve</command></term>
|
---|
| 756 | <listitem>
|
---|
[9e7475a] | 757 | <para>Is used to resolve domain names, IPV4 and IPv6 addresses, DNS
|
---|
[1118b17] | 758 | resource records, and services</para>
|
---|
| 759 | <indexterm zone="ch-system-systemd systemd-resolve">
|
---|
| 760 | <primary sortas="b-systemd-resolve">systemd-resolve</primary>
|
---|
| 761 | </indexterm>
|
---|
| 762 | </listitem>
|
---|
| 763 | </varlistentry>
|
---|
| 764 |
|
---|
[cba2d4e] | 765 | <varlistentry id="systemd-run">
|
---|
| 766 | <term><command>systemd-run</command></term>
|
---|
| 767 | <listitem>
|
---|
[9e7475a] | 768 | <para>Is used to create and start a transient .service or a .scope
|
---|
[69854d2a] | 769 | unit and run the specified command in it; this is useful for
|
---|
[8d35535] | 770 | validating systemd units</para>
|
---|
[cba2d4e] | 771 | <indexterm zone="ch-system-systemd systemd-run">
|
---|
| 772 | <primary sortas="b-systemd-run">systemd-run</primary>
|
---|
| 773 | </indexterm>
|
---|
| 774 | </listitem>
|
---|
| 775 | </varlistentry>
|
---|
| 776 |
|
---|
[13c8b42] | 777 | <varlistentry id="systemd-socket-activate">
|
---|
| 778 | <term><command>systemd-socket-activate</command></term>
|
---|
| 779 | <listitem>
|
---|
[9e7475a] | 780 | <para>Is used to listen on socket devices and launch a process upon
|
---|
[8d35535] | 781 | a successful connection to the socket</para>
|
---|
[13c8b42] | 782 | <indexterm zone="ch-system-systemd systemd-socket-activate">
|
---|
| 783 | <primary sortas="b-systemd-socket-activate">systemd-socket-activate</primary>
|
---|
| 784 | </indexterm>
|
---|
| 785 | </listitem>
|
---|
| 786 | </varlistentry>
|
---|
| 787 |
|
---|
[d7a9421] | 788 | <varlistentry id="systemd-sysext">
|
---|
| 789 | <term><command>systemd-sysext</command></term>
|
---|
| 790 | <listitem>
|
---|
[871fd2f] | 791 | <para>Activates system extension images</para>
|
---|
[d7a9421] | 792 | <indexterm zone="ch-system-systemd systemd-sysext">
|
---|
| 793 | <primary sortas="b-systemd-sysext">systemd-sysext</primary>
|
---|
| 794 | </indexterm>
|
---|
| 795 | </listitem>
|
---|
| 796 | </varlistentry>
|
---|
| 797 |
|
---|
[cba2d4e] | 798 | <varlistentry id="systemd-tmpfiles">
|
---|
| 799 | <term><command>systemd-tmpfiles</command></term>
|
---|
| 800 | <listitem>
|
---|
[69854d2a] | 801 | <para>Creates, deletes, and cleans up volatile and temporary files and
|
---|
[1118b17] | 802 | directories, based on the configuration file format and location
|
---|
| 803 | specified in
|
---|
| 804 | <filename class="directory">tmpfiles.d</filename> directories</para>
|
---|
[cba2d4e] | 805 | <indexterm zone="ch-system-systemd systemd-tmpfiles">
|
---|
| 806 | <primary sortas="b-systemd-tmpfiles">systemd-tmpfiles</primary>
|
---|
| 807 | </indexterm>
|
---|
| 808 | </listitem>
|
---|
| 809 | </varlistentry>
|
---|
| 810 |
|
---|
[78cc3be] | 811 | <varlistentry id="systemd-umount">
|
---|
| 812 | <term><command>systemd-umount</command></term>
|
---|
| 813 | <listitem>
|
---|
[9e7475a] | 814 | <para>Unmounts mount points</para>
|
---|
[78cc3be] | 815 | <indexterm zone="ch-system-systemd systemd-umount">
|
---|
| 816 | <primary sortas="b-systemd-umount">systemd-umount</primary>
|
---|
| 817 | </indexterm>
|
---|
| 818 | </listitem>
|
---|
| 819 | </varlistentry>
|
---|
| 820 |
|
---|
[cba2d4e] | 821 | <varlistentry id="systemd-tty-ask-password-agent">
|
---|
| 822 | <term><command>systemd-tty-ask-password-agent</command></term>
|
---|
| 823 | <listitem>
|
---|
[d672ab7] | 824 | <para>Is used to list and/or process pending systemd password
|
---|
[9e7475a] | 825 | requests</para>
|
---|
[cba2d4e] | 826 | <indexterm zone="ch-system-systemd systemd-tty-ask-password-agent">
|
---|
| 827 | <primary sortas="b-systemd-tty-ask-password-agent">systemd-tty-ask-password-agent</primary>
|
---|
| 828 | </indexterm>
|
---|
| 829 | </listitem>
|
---|
| 830 | </varlistentry>
|
---|
| 831 |
|
---|
| 832 | <varlistentry id="telinit">
|
---|
| 833 | <term><command>telinit</command></term>
|
---|
| 834 | <listitem>
|
---|
[1118b17] | 835 | <para>Tells <command>init</command> which run-level to change
|
---|
| 836 | to</para>
|
---|
[cba2d4e] | 837 | <indexterm zone="ch-system-systemd telinit">
|
---|
| 838 | <primary sortas="b-telinit">telinit</primary>
|
---|
| 839 | </indexterm>
|
---|
| 840 | </listitem>
|
---|
| 841 | </varlistentry>
|
---|
| 842 |
|
---|
| 843 | <varlistentry id="timedatectl">
|
---|
| 844 | <term><command>timedatectl</command></term>
|
---|
| 845 | <listitem>
|
---|
[9e7475a] | 846 | <para>Is used to query and change the system clock and its settings
|
---|
[cba2d4e] | 847 | </para>
|
---|
| 848 | <indexterm zone="ch-system-systemd timedatectl">
|
---|
| 849 | <primary sortas="b-timedatectl">timedatectl</primary>
|
---|
[f896e21c] | 850 | </indexterm>
|
---|
| 851 | </listitem>
|
---|
| 852 | </varlistentry>
|
---|
| 853 |
|
---|
| 854 | <varlistentry id="udevadm">
|
---|
| 855 | <term><command>udevadm</command></term>
|
---|
| 856 | <listitem>
|
---|
[d672ab7] | 857 | <para>Is a generic udev administration tool which controls the udevd
|
---|
[69854d2a] | 858 | daemon, provides info from the udev hardware database, monitors
|
---|
[d672ab7] | 859 | uevents, waits for uevents to finish, tests udev configuration, and
|
---|
[9e7475a] | 860 | triggers uevents for a given device</para>
|
---|
[cba2d4e] | 861 | <indexterm zone="ch-system-systemd udevadm">
|
---|
[f896e21c] | 862 | <primary sortas="b-udevadm">udevadm</primary>
|
---|
| 863 | </indexterm>
|
---|
| 864 | </listitem>
|
---|
| 865 | </varlistentry>
|
---|
| 866 |
|
---|
[cba2d4e] | 867 | <varlistentry id="libsystemd">
|
---|
| 868 | <term><filename class="libraryfile">libsystemd</filename></term>
|
---|
[f896e21c] | 869 | <listitem>
|
---|
[9e7475a] | 870 | <para>Is the main systemd utility library</para>
|
---|
[cba2d4e] | 871 | <indexterm zone="ch-system-systemd libsystemd">
|
---|
| 872 | <primary sortas="c-libsystemd">libsystemd</primary>
|
---|
[f896e21c] | 873 | </indexterm>
|
---|
| 874 | </listitem>
|
---|
| 875 | </varlistentry>
|
---|
| 876 |
|
---|
| 877 | <varlistentry id="libudev">
|
---|
| 878 | <term><filename class="libraryfile">libudev</filename></term>
|
---|
| 879 | <listitem>
|
---|
[9e7475a] | 880 | <para>Is a library to access Udev device information</para>
|
---|
[cba2d4e] | 881 | <indexterm zone="ch-system-systemd libudev">
|
---|
[f896e21c] | 882 | <primary sortas="c-libudev">libudev</primary>
|
---|
| 883 | </indexterm>
|
---|
| 884 | </listitem>
|
---|
| 885 | </varlistentry>
|
---|
| 886 |
|
---|
| 887 | </variablelist>
|
---|
| 888 |
|
---|
| 889 | </sect2>
|
---|
| 890 |
|
---|
| 891 | </sect1>
|
---|