| 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 | <sect1 id="ch-system-systemd" role="wrap">
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| 8 | <?dbhtml filename="systemd.html"?>
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| 9 |
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| 10 | <title>systemd-&systemd-version;</title>
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| 11 |
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| 12 | <indexterm zone="ch-system-systemd">
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| 13 | <primary sortas="a-systemd">systemd</primary>
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| 14 | </indexterm>
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| 15 |
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| 16 | <sect2 role="package">
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| 17 | <title/>
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| 18 |
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| 19 | <para><command>systemd</command> is a system and service manager for Linux
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| 20 | operating systems.</para>
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| 21 |
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| 22 | </sect2>
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| 23 |
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| 24 | <sect2 role="installation">
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| 25 | <title>Installation of systemd</title>
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| 26 |
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| 27 | <para os="a">Prepare systemd for compilation:</para>
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| 28 |
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| 29 | <screen os="b"><userinput>./configure --prefix=/usr \
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| 30 | --sysconfdir=/etc --localstatedir=/var \
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| 31 | --libexecdir=/usr/lib --docdir=/usr/share/doc/systemd-&systemd-version; \
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| 32 | --with-rootprefix="" --with-rootlibdir=/lib \
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| 33 | --enable-split-usr --disable-gudev</userinput></screen>
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| 34 |
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| 35 | <para os="c">Compile the package:</para>
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| 36 |
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| 37 | <screen os="d"><userinput>make</userinput></screen>
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| 38 |
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| 39 | <para os="e">Install the package:</para>
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| 40 |
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| 41 | <screen os="f"><userinput>make install</userinput></screen>
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| 42 |
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| 43 | <para os="g">Install man pages and documentation files that are not
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| 44 | installed by default:</para>
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| 45 |
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| 46 | <screen os="h"><userinput>for section in 1 3 5 7 8
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| 47 | do
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| 48 | install -v -m644 man/*.${section} /usr/share/man/man${section}
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| 49 | done
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| 50 | install -v -m644 man/*.html /usr/share/doc/systemd-&systemd-version;</userinput></screen>
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| 51 |
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| 52 | <para os="i">Create symlinks for backwards-compatibility with Sysvinit:</para>
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| 53 |
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| 54 | <screen os="j"><userinput>for tool in runlevel reboot shutdown poweroff halt telinit; do
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| 55 | ln -sfv ../bin/systemctl /sbin/$tool
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| 56 | done
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| 57 | ln -sfv ../lib/systemd/systemd /sbin/init</userinput></screen>
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| 58 |
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| 59 | <para os="k">Modify a configuration file which references a group that
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| 60 | doesn't exist:</para>
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| 61 |
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| 62 | <screen os="l"><userinput>sed -i "s@root lock@0root root@g" /usr/lib/tmpfiles.d/legacy.conf</userinput></screen>
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| 63 |
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| 64 | </sect2>
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| 65 |
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| 66 | <sect2 id="conf-systemd" role="configuration">
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| 67 | <title>Configuring systemd</title>
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| 68 |
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| 69 | <indexterm zone="conf-systemd">
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| 70 | <primary sortas="a-systemd">systemd</primary>
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| 71 | <secondary>configuring</secondary></indexterm>
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| 72 |
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| 73 | <indexterm zone="conf-systemd">
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| 74 | <primary sortas="e-/etc/os-release">/etc/os-release</primary>
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| 75 | </indexterm>
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| 76 |
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| 77 | <para>Create <filename>/etc/machine-id</filename> which is needed
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| 78 | by Journald:</para>
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| 79 |
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| 80 | <screen><userinput>systemd-machine-id-setup</userinput></screen>
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| 81 |
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| 82 | <para>Create a file to identify the operating system.
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| 83 | <command>systemd</command> will use this file on boot to put information
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| 84 | on the screen.</para>
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| 85 |
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| 86 | <screen><userinput>cat > /etc/os-release << "EOF"
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| 87 | # Begin /etc/os-release
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| 88 |
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| 89 | NAME=Cross-LFS
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| 90 | ID=clfs
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| 91 |
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| 92 | PRETTY_NAME=Cross Linux From Scratch
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| 93 | ANSI_COLOR=0;33
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| 94 |
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| 95 | VERSION=&version;
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| 96 | VERSION_ID=&versionid;
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| 97 |
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| 98 | # End /etc/os-release
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| 99 | EOF</userinput></screen>
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| 100 |
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| 101 | </sect2>
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| 102 |
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| 103 | <sect2 id="contents-systemd" role="content">
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| 104 | <title>Contents of systemd</title>
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| 105 |
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| 106 | <segmentedlist>
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| 107 | <segtitle>Installed programs</segtitle>
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| 108 | <segtitle>Installed libraries</segtitle>
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| 109 | <segtitle>Installed directories</segtitle>
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| 110 |
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| 111 | <seglistitem>
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| 112 | <seg>systemctl, systemd, systemd-ask-password, systemd-cgls,
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| 113 | systemd-notify, systemd-tty-ask-password-agent</seg>
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| 114 | <seg>pam_systemd</seg>
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| 115 | <seg>/lib/systemd, /etc/systemd, /etc/tmpfiles.d,
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| 116 | /usr/share/systemd</seg>
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| 117 | </seglistitem>
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| 118 | </segmentedlist>
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| 119 |
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| 120 | <variablelist>
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| 121 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 122 | <?dbfo list-presentation="list"?>
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| 123 | <?dbhtml list-presentation="table"?>
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| 124 |
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| 125 | <varlistentry id="systemctl">
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| 126 | <term><command>systemctl</command></term>
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| 127 | <listitem>
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| 128 | <para>Control the systemd system and service manager</para>
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| 129 | <indexterm zone="ch-system-systemd systemctl">
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| 130 | <primary sortas="b-systemctl">systemctl</primary>
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| 131 | </indexterm>
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| 132 | </listitem>
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| 133 | </varlistentry>
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| 134 |
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| 135 | <varlistentry id="systemd">
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| 136 | <term><command>systemd</command></term>
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| 137 | <listitem>
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| 138 | <para>System and service manager for Linux</para>
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| 139 | <indexterm zone="ch-system-systemd systemd">
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| 140 | <primary sortas="b-systemd">systemd</primary>
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| 141 | </indexterm>
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| 142 | </listitem>
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| 143 | </varlistentry>
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| 144 |
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| 145 | <varlistentry id="systemd-ask-password">
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| 146 | <term><command>systemd-ask-password</command></term>
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| 147 | <listitem>
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| 148 | <para>Queries the user for a system passphrase, via the
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| 149 | TTY or an UI agent.</para>
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| 150 | <indexterm zone="ch-system-systemd systemd-ask-password">
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| 151 | <primary sortas="b-systemd-ask-password">systemd-ask-password</primary>
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| 152 | </indexterm>
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| 153 | </listitem>
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| 154 | </varlistentry>
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| 155 |
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| 156 | <varlistentry id="systemd-cgls">
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| 157 | <term><command>systemd-cgls</command></term>
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| 158 | <listitem>
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| 159 | <para>Recursively shows control group contents</para>
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| 160 | <indexterm zone="ch-system-systemd systemd-cgls">
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| 161 | <primary sortas="b-systemd-cgls">systemd-cgls</primary>
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| 162 | </indexterm>
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| 163 | </listitem>
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| 164 | </varlistentry>
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| 165 |
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| 166 | <varlistentry id="systemd-notify">
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| 167 | <term><command>systemd-notify</command></term>
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| 168 | <listitem>
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| 169 | <para>Notify init system about start-up completion and other daemon
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| 170 | status changes</para>
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| 171 | <indexterm zone="ch-system-systemd systemd-notify">
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| 172 | <primary sortas="b-systemd-notify">systemd-notify</primary>
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| 173 | </indexterm>
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| 174 | </listitem>
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| 175 | </varlistentry>
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| 176 |
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| 177 | <varlistentry id="systemd-tty-ask-password-agent">
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| 178 | <term><command>systemd-tty-ask-password-agent</command></term>
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| 179 | <listitem>
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| 180 | <para>Process system password requests</para>
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| 181 | <indexterm zone="ch-system-systemd systemd-tty-ask-password-agent">
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| 182 | <primary sortas="b-systemd-tty-ask-password-agent">systemd-tty-ask-password-agent</primary>
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| 183 | </indexterm>
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| 184 | </listitem>
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| 185 | </varlistentry>
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| 186 |
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| 187 | <varlistentry id="pam_systemd">
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| 188 | <term><filename class="libraryfile">pam_systemd</filename></term>
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| 189 | <listitem>
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| 190 | <para>Register user sessions in the systemd control group
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| 191 | hierarchy</para>
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| 192 | <indexterm zone="ch-system-systemd pam_systemd">
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| 193 | <primary sortas="c-pam_systemd">pam_systemd</primary>
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| 194 | </indexterm>
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| 195 | </listitem>
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| 196 | </varlistentry>
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| 197 |
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| 198 | <varlistentry id="lib-systemd">
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| 199 | <term><filename class="directory">/lib/systemd</filename></term>
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| 200 | <listitem>
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| 201 | <para>Location of system units and configurations</para>
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| 202 | <indexterm zone="ch-system-systemd lib-systemd">
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| 203 | <primary sortas="e-/lib/systemd">/lib/systemd</primary>
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| 204 | </indexterm>
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| 205 | </listitem>
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| 206 | </varlistentry>
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| 207 |
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| 208 | <varlistentry id="etc-systemd">
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| 209 | <term><filename class="directory">/etc/systemd</filename></term>
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| 210 | <listitem>
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| 211 | <para>Location of user units and configurations</para>
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| 212 | <indexterm zone="ch-system-systemd etc-systemd">
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| 213 | <primary sortas="e-/etc/systemd">/etc/systemd</primary>
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| 214 | </indexterm>
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| 215 | </listitem>
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| 216 | </varlistentry>
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| 217 |
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| 218 | <varlistentry id="etc-tmpfilesd">
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| 219 | <term><filename class="directory">/etc/tmpfiles.d</filename></term>
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| 220 | <listitem>
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| 221 | <para>Configuration for creation, deletion and cleaning of temporary
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| 222 | and volatile files</para>
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| 223 | <indexterm zone="ch-system-systemd etc-tmpfilesd">
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| 224 | <primary sortas="e-/etc/tmpfiles.d">/etc/tmpfiles.d</primary>
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| 225 | </indexterm>
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| 226 | </listitem>
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| 227 | </varlistentry>
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| 228 |
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| 229 | <varlistentry id="usr-share-systemd">
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| 230 | <term><filename class="directory">/usr/share/systemd</filename></term>
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| 231 | <listitem>
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| 232 | <para>Location of session unit files</para>
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| 233 | <indexterm zone="ch-system-systemd usr-share-systemd">
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| 234 | <primary sortas="e-/usr/share/systemd">/usr/share/systemd</primary>
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| 235 | </indexterm>
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| 236 | </listitem>
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| 237 | </varlistentry>
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| 238 |
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| 239 | </variablelist>
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| 240 |
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| 241 | </sect2>
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| 242 |
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| 243 | </sect1>
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