source: BOOK/final-system/common/systemd.xml @ e167dd9

clfs-3.0.0-systemdsystemd
Last change on this file since e167dd9 was e167dd9, checked in by Chris Staub <chris@…>, 10 years ago

Slight grammar fix

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1<?xml version="1.0" encoding="ISO-8859-1"?>
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<sect1 id="ch-system-systemd" role="wrap">
8  <?dbhtml filename="systemd.html"?>
9
10  <title>Systemd-&systemd-version;</title>
11
12  <indexterm zone="ch-system-systemd">
13    <primary sortas="a-systemd">Systemd</primary>
14  </indexterm>
15
16  <sect2 role="package">
17    <title/>
18
19    <para>The systemd package is a system and service manager for Linux
20    operating systems.</para>
21
22  </sect2>
23
24  <sect2 role="installation">
25    <title>Installation of Systemd</title>
26
27    <para os="p1">Systemd 211 merged several libraries into
28    <filename class="libraryfile">libsystemd</filename>, but some packages
29    that use systemd still expect those separate libraries. Apply a patch
30    to allow backwards compatibility with these packages by
31    installing Pkg-config files for the old libraries:</para>
32
33<screen os="p2"><userinput>patch -Np1 -i ../&systemd-compat-patch;</userinput></screen>
34
35    <para os="a">Prepare systemd for compilation:</para>
36
37<screen os="b"><userinput>./configure --prefix=/usr \
38    --sysconfdir=/etc --localstatedir=/var \
39    --libexecdir=/usr/lib --docdir=/usr/share/doc/systemd-&systemd-version; \
40    --with-rootprefix="" --with-rootlibdir=/lib \
41    --enable-split-usr --disable-gudev --with-kbd-loadkeys=/bin/loadkeys \
42    --with-kbd-setfont=/bin/setfont --with-dbuspolicydir=/etc/dbus-1/system.d \
43    --with-dbusinterfacedir=/usr/share/dbus-1/interfaces \
44    --with-dbussessionservicedir=/usr/share/dbus-1/services \
45    --with-dbussystemservicedir=/usr/share/dbus-1/system-services</userinput></screen>
46
47    <variablelist os="c">
48      <title>The meaning of the configure options:</title>
49
50      <varlistentry>
51        <term><parameter>--with-root*</parameter></term>
52        <listitem>
53          <para>These switches ensure that core programs and
54          shared libraries are installed in the subdirectories
55          of the root partition.</para>
56        </listitem>
57      </varlistentry>
58
59      <varlistentry>
60        <term><parameter>--enable-split-usr</parameter></term>
61        <listitem>
62          <para>This switch ensures that systemd will work on
63          systems where /bin, /lib and /sbin directories are not
64          symlinks to their /usr counterparts.</para>
65        </listitem>
66      </varlistentry>
67
68      <varlistentry>
69        <term><parameter>--disable-gudev</parameter></term>
70        <listitem>
71          <para>This switch prevents systemd from building
72          <filename class="libraryfile">libgudev</filename> as it requires
73          Glib, which is not installed in CLFS.</para>
74        </listitem>
75      </varlistentry>
76
77      <varlistentry>
78        <term><parameter>--with-dbus*</parameter></term>
79        <listitem>
80          <para>These switches ensure that D-Bus configuration files get
81          installed to the correct locations.</para>
82        </listitem>
83      </varlistentry>
84    </variablelist>
85
86    <para os="d">Compile the package:</para>
87
88<screen os="e"><userinput>make</userinput></screen>
89
90    <para os="f">Prevent a broken test case from running:</para>
91
92<screen os="g"><userinput remap="test">sed -e "s:test/udev-test.pl::g" \
93    -e "s:test-bus-cleanup\$(EXEEXT) ::g" \
94    -e "s:test-bus-gvariant\$(EXEEXT) ::g" \
95    -i Makefile</userinput></screen>
96
97    <para os="h">To test the results, issue:</para>
98
99<screen os="i"><userinput remap="test">make check</userinput></screen>
100
101    <para os="j">Install the package:</para>
102
103<screen os="k"><userinput>make install</userinput></screen>
104
105    <para os="l">Install documentation files that are not installed by default:</para>
106
107<screen os="m"><userinput>install -v -m644 man/*.html /usr/share/doc/systemd-&systemd-version;</userinput></screen>
108
109    <para os="n">Move NSS myhostname library to <filename class="directory">/lib
110</filename>:</para>
111
112<screen os="o"><userinput>mv -v /usr/lib/libnss_myhostname.so.2 /lib</userinput></screen>
113
114    <para os="p">Remove an unnecessary directory:</para>
115
116<screen os="q"><userinput>rm -rfv /usr/lib/rpm</userinput></screen>
117
118    <para os="r">Create symlinks for backwards-compatibility with Sysvinit:</para>
119
120<screen os="s"><userinput>for tool in runlevel reboot shutdown poweroff halt telinit; do
121  ln -sfv ../bin/systemctl /sbin/$tool
122done
123ln -sfv ../lib/systemd/systemd /sbin/init</userinput></screen>
124
125    <para os="t">Modify a configuration file which references a group that
126    doesn't exist:</para>
127
128<screen os="u"><userinput>sed -i "s@root lock@root root@g" /usr/lib/tmpfiles.d/legacy.conf</userinput></screen>
129
130  </sect2>
131
132  <sect2 id="conf-systemd" role="configuration">
133    <title>Configuring Systemd</title>
134
135    <indexterm zone="conf-systemd">
136      <primary sortas="a-systemd">systemd</primary>
137    <secondary>configuring</secondary></indexterm>
138
139    <indexterm zone="conf-systemd">
140      <primary sortas="e-/etc/os-release">/etc/os-release</primary>
141    </indexterm>
142
143    <para>Create <filename>/etc/machine-id</filename> which is needed
144    by Journald:</para>
145
146<screen><userinput>systemd-machine-id-setup</userinput></screen>
147
148    <para>Create a file to identify the operating system.
149    <command>systemd</command> will use this file on boot to put information
150    on the screen.</para>
151
152<screen><userinput>cat &gt; /etc/os-release &lt;&lt; "EOF"
153# Begin /etc/os-release
154
155NAME=Cross-LFS
156ID=clfs
157
158PRETTY_NAME=Cross Linux From Scratch
159ANSI_COLOR=0;33
160
161VERSION=&version;
162VERSION_ID=&versionid;
163
164# End /etc/os-release
165EOF</userinput></screen>
166
167  </sect2>
168
169  <sect2 id="contents-systemd" role="content">
170    <title>Contents of Systemd</title>
171
172    <segmentedlist>
173      <segtitle>Installed programs</segtitle>
174      <segtitle>Installed libraries</segtitle>
175      <segtitle>Installed directories</segtitle>
176
177      <seglistitem>
178        <seg>bootctl, busctl, halt (link to systemctl), hostnamectl,
179        init (link to systemd), journalctl, kernel-install, localectl, loginctl,
180        machinectl, poweroff (link to systemctl), reboot (link to systemctl),
181        runlevel (link to systemctl), shutdown (link to systemctl),
182        systemctl, system-analyze, systemd-ask-password, systemd-cat,
183        systemd-cgls, systemd-cgtop, systemd-coredumpctl, systemd-delta,
184        systemd-detect-virt, systemd-inhibit, systemd-machine-id-setup,
185        systemd-notify, systemd-nspawn, systemd-run, systemd-stdio-bridge
186        (link to systemd-bus-proxyd), systemd-tmpfiles,
187        systemd-tty-ask-password-agent, telinit (link to systemctl),
188        timedatectl, udevadm</seg>
189        <seg>libnss_myhostname.so, libsystemd.so, libudev.so</seg>
190        <seg>/etc/binfmt.d, /etc/init.d, /etc/kernel, /etc/modules-load.d,
191        /etc/sysctl.d, /etc/systemd, /etc/tmpfiles.d, /etc/udev,
192        /etc/xdg/systemd, /lib/systemd, /lib/udev, /usr/include/systemd,
193        /usr/lib/binfmt.d, /usr/lib/kernel, /usr/lib/modules-load.d,
194        /usr/lib/sysctl.d, /usr/lib/systemd,
195        /usr/share/doc-systemd-&systemd-version;, /usr/share/systemd,
196        /var/lib/systemd</seg>
197      </seglistitem>
198    </segmentedlist>
199
200    <variablelist>
201      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
202      <?dbfo list-presentation="list"?>
203      <?dbhtml list-presentation="table"?>
204
205      <varlistentry id="systemctl">
206        <term><command>systemctl</command></term>
207        <listitem>
208          <para>Control the systemd system and service manager</para>
209          <indexterm zone="ch-system-systemd systemctl">
210            <primary sortas="b-systemctl">systemctl</primary>
211          </indexterm>
212        </listitem>
213      </varlistentry>
214
215      <varlistentry id="systemd">
216        <term><command>systemd</command></term>
217        <listitem>
218          <para>System and service manager for Linux</para>
219          <indexterm zone="ch-system-systemd systemd">
220            <primary sortas="b-systemd">systemd</primary>
221          </indexterm>
222        </listitem>
223      </varlistentry>
224
225      <varlistentry id="systemd-ask-password">
226        <term><command>systemd-ask-password</command></term>
227        <listitem>
228          <para>Queries the user for a system passphrase, via the
229          TTY or an UI agent.</para>
230          <indexterm zone="ch-system-systemd systemd-ask-password">
231            <primary sortas="b-systemd-ask-password">systemd-ask-password</primary>
232          </indexterm>
233        </listitem>
234      </varlistentry>
235
236      <varlistentry id="systemd-cgls">
237        <term><command>systemd-cgls</command></term>
238        <listitem>
239          <para>Recursively shows control group contents</para>
240          <indexterm zone="ch-system-systemd systemd-cgls">
241            <primary sortas="b-systemd-cgls">systemd-cgls</primary>
242          </indexterm>
243        </listitem>
244      </varlistentry>
245
246      <varlistentry id="systemd-notify">
247        <term><command>systemd-notify</command></term>
248        <listitem>
249          <para>Notify init system about start-up completion and other daemon
250          status changes</para>
251          <indexterm zone="ch-system-systemd systemd-notify">
252            <primary sortas="b-systemd-notify">systemd-notify</primary>
253          </indexterm>
254        </listitem>
255      </varlistentry>
256
257      <varlistentry id="systemd-tty-ask-password-agent">
258        <term><command>systemd-tty-ask-password-agent</command></term>
259        <listitem>
260          <para>Process system password requests</para>
261          <indexterm zone="ch-system-systemd systemd-tty-ask-password-agent">
262            <primary sortas="b-systemd-tty-ask-password-agent">systemd-tty-ask-password-agent</primary>
263          </indexterm>
264        </listitem>
265      </varlistentry>
266
267      <varlistentry id="pam_systemd">
268        <term><filename class="libraryfile">pam_systemd</filename></term>
269        <listitem>
270          <para>Register user sessions in the systemd control group
271          hierarchy</para>
272          <indexterm zone="ch-system-systemd pam_systemd">
273            <primary sortas="c-pam_systemd">pam_systemd</primary>
274          </indexterm>
275        </listitem>
276      </varlistentry>
277
278      <varlistentry id="lib-systemd">
279        <term><filename class="directory">/lib/systemd</filename></term>
280        <listitem>
281          <para>Location of system units and configurations</para>
282          <indexterm zone="ch-system-systemd lib-systemd">
283            <primary sortas="e-/lib/systemd">/lib/systemd</primary>
284          </indexterm>
285        </listitem>
286      </varlistentry>
287
288      <varlistentry id="etc-systemd">
289        <term><filename class="directory">/etc/systemd</filename></term>
290        <listitem>
291          <para>Location of user units and configurations</para>
292          <indexterm zone="ch-system-systemd etc-systemd">
293            <primary sortas="e-/etc/systemd">/etc/systemd</primary>
294          </indexterm>
295        </listitem>
296      </varlistentry>
297
298      <varlistentry id="etc-tmpfilesd">
299        <term><filename class="directory">/etc/tmpfiles.d</filename></term>
300        <listitem>
301          <para>Configuration for creation, deletion and cleaning of temporary
302          and volatile files</para>
303          <indexterm zone="ch-system-systemd etc-tmpfilesd">
304            <primary sortas="e-/etc/tmpfiles.d">/etc/tmpfiles.d</primary>
305          </indexterm>
306        </listitem>
307      </varlistentry>
308
309      <varlistentry id="usr-share-systemd">
310        <term><filename class="directory">/usr/share/systemd</filename></term>
311        <listitem>
312          <para>Location of session unit files</para>
313          <indexterm zone="ch-system-systemd usr-share-systemd">
314            <primary sortas="e-/usr/share/systemd">/usr/share/systemd</primary>
315          </indexterm>
316        </listitem>
317      </varlistentry>
318
319    </variablelist>
320
321  </sect2>
322
323</sect1>
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