glfs/gnome/platform/gdm.xml
Douglas R. Reno 28a5598f23 Update to gdm-3.36.2
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@23078 af4574ff-66df-0310-9fd7-8a98e5e911e0
2020-05-05 15:31:20 +00:00

369 lines
12 KiB
XML

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY % general-entities SYSTEM "../../general.ent">
%general-entities;
<!ENTITY gdm-download-http "&gnome-download-http;/gdm/&gnome-minor-36;/gdm-&gdm-version;.tar.xz">
<!ENTITY gdm-download-ftp "&gnome-download-ftp;/gdm/&gnome-minor-36;/gdm-&gdm-version;.tar.xz">
<!ENTITY gdm-md5sum "18384eb8345dbee5a8219916debf7e43">
<!ENTITY gdm-size "1.2 MB">
<!ENTITY gdm-buildsize "43 MB">
<!ENTITY gdm-time "0.3 SBU">
]>
<sect1 id="gdm" xreflabel="GDM-&gdm-version;">
<?dbhtml filename="gdm.html"?>
<sect1info>
<othername>$LastChangedBy$</othername>
<date>$Date$</date>
</sect1info>
<title>GDM-&gdm-version;</title>
<indexterm zone="gdm">
<primary sortas="a-GDM">GDM</primary>
</indexterm>
<sect2 role="package">
<title>Introduction to GDM</title>
<para>
<application>GDM</application> is a system service that is
responsible for providing graphical logins and managing local
and remote displays.
</para>
&lfs91_checked;
<bridgehead renderas="sect3">Package Information</bridgehead>
<itemizedlist spacing="compact">
<listitem>
<para>
Download (HTTP): <ulink url="&gdm-download-http;"/>
</para>
</listitem>
<listitem>
<para>
Download (FTP): <ulink url="&gdm-download-ftp;"/>
</para>
</listitem>
<listitem>
<para>
Download MD5 sum: &gdm-md5sum;
</para>
</listitem>
<listitem>
<para>
Download size: &gdm-size;
</para>
</listitem>
<listitem>
<para>
Estimated disk space required: &gdm-buildsize;
</para>
</listitem>
<listitem>
<para>
Estimated build time: &gdm-time;
</para>
</listitem>
</itemizedlist>
<!--
<bridgehead renderas="sect3">Additional Downloads</bridgehead>
<itemizedlist spacing="compact">
<listitem>
<para>
Required patch:
<ulink url="&patch-root;/gdm-&gdm-version;-security_fix-1.patch"/>
</para>
</listitem>
</itemizedlist>
-->
<bridgehead renderas="sect3">GDM Dependencies</bridgehead>
<bridgehead renderas="sect4">Required</bridgehead>
<para role="required">
<xref linkend="accountsservice"/>,
<xref linkend="gtk3"/>,
<xref linkend="iso-codes"/>,
<xref linkend="itstool"/>,
<xref linkend="keyutils"/>,
<xref linkend="libcanberra"/>,
<xref linkend="libdaemon"/>, and
<xref linkend="linux-pam"/>
</para>
<bridgehead renderas="sect4">Runtime Dependencies</bridgehead>
<para role="required">
<xref role="runtime" linkend="gnome-session"/>,
<xref role="runtime" linkend="gnome-shell"/>, and
<phrase revision="sysv"><xref role="runtime" linkend="elogind"/></phrase>
<phrase revision="systemd"><xref role="runtime" linkend="systemd"/></phrase>
</para>
<para condition="html" role="usernotes">User Notes:
<ulink url="&blfs-wiki;/gdm"/>
</para>
</sect2>
<sect2 role="installation">
<title>Installation of GDM</title>
<para>
It is recommended to have a dedicated user and group to take
control of the <command>gdm</command> daemon after it is
started. Issue the following commands as the
<systemitem class="username">root</systemitem> user:
</para>
<screen role="root"><userinput>groupadd -g 21 gdm &amp;&amp;
useradd -c "GDM Daemon Owner" -d /var/lib/gdm -u 21 \
-g gdm -s /bin/false gdm &amp;&amp;
passwd -ql gdm</userinput></screen>
<!--
<note revision="sysv">
<para>
The <application>gdm</application> login screen is managed by
<application>gnome-shell</application>, which relies on the
<command>systemd-localed</command> daemon to get the system
settings. Since this daemon is not present on this system, a
<command>sed</command> is applied in the <xref
linkend="gnome-shell"/> instructions to change this behavior,
but then <application>gdm</application> uses the system settings,
which default to a US <quote>qwerty</quote> keyboard layout. This may
be an inconvience to enter a password when the machine keyboard
has a different layout. One possibility is to use the screen-keyboard
from the accessibility menu. Another possibility is to change the
defaults at compile time, by creating the following file:
</para>
<screen><userinput>cat &gt; data/dconf/defaults/01-keyboard &lt;&lt; EOF
<literal>[org/gnome/desktop/input-sources]
sources=[('xkb','<replaceable>layout</replaceable>')]</literal>
EOF</userinput></screen>
<para>
where <replaceable>layout</replaceable> should be replaced with
the acronym for your keyboard layout (one of the filenames in
<filename class="directory">/usr/share/X11/xkb/symbols</filename>).
</para>
</note>
-->
<para>
Install <application>GDM</application> by running the following
commands:
</para>
<screen revision="sysv"><userinput>sed 's@systemd@elogind@' -i data/pam-lfs/gdm-launch-environment.pam &amp;&amp;
./configure --prefix=/usr \
--sysconfdir=/etc \
--localstatedir=/var \
--without-plymouth \
--disable-static \
--enable-gdm-xsession \
--with-systemdsystemunitdir=no \
--with-pam-mod-dir=/lib/security &amp;&amp;
make</userinput></screen>
<screen revision="systemd"><userinput>./configure --prefix=/usr \
--sysconfdir=/etc \
--localstatedir=/var \
--without-plymouth \
--disable-static \
--enable-gdm-xsession \
--with-pam-mod-dir=/lib/security &amp;&amp;
make</userinput></screen>
<para>
This package does not come with a usable test suite.
</para>
<para>
Now, as the <systemitem class="username">root</systemitem> user:
</para>
<screen role="root" revision="sysv"><userinput>make install</userinput></screen>
<screen role="root" revision="systemd"><userinput>make install &amp;&amp;
install -v -m644 data/gdm.service /lib/systemd/system/gdm.service</userinput></screen>
</sect2>
<sect2 role="commands">
<title>Command Explanations</title>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
href="../../xincludes/static-libraries.xml"/>
<para>
<option>--with-initial-vt=7</option>: Use this switch
to make <application>GDM</application> start on VT7
instead of the first free VT.
</para>
<para>
<parameter>--without-plymouth</parameter>: GDM now explicitly requires
plymouth to be installed. Use this switch to disable this dependency.
</para>
<para>
<option>--with-default-pam-config=lfs</option>: Use this
switch if you did not create the
<filename>/etc/lfs-release</filename> file or distribution
auto detection will fail and you will be unable to use
<application>GDM</application>.
</para>
<para>
<parameter>--enable-gdm-xsession</parameter>: This enables the
installation of the <application>GDM</application> Xsession file.
</para>
</sect2>
<sect2 role="configuration">
<title>Configuring GDM</title>
<sect3 id="gdm-config">
<title>Config Files</title>
<para>
<filename>/etc/gdm/custom.conf</filename>
</para>
<indexterm zone="gdm gdm-config">
<primary sortas="e-etc-gdm-custom.conf">/etc/gdm/custom.conf</primary>
</indexterm>
</sect3>
<sect3>
<title>Configuration Information</title>
<para>
The GDM daemon is configured using the
<filename>/etc/gdm/custom.conf</filename> file. Default values
are stored in GSettings in the <filename>gdm.schemas</filename>
file. It is recommended that end-users modify the
<filename>/etc/gdm/custom.conf</filename> file because the schemas
file may be overwritten when the user updates their system to have
a newer version of <application>GDM</application>.
</para>
</sect3>
<sect3 id="gdm-init">
<title><phrase revision="sysv">Boot Script</phrase>
<phrase revision="systemd">Systemd Unit</phrase></title>
<indexterm zone="gdm gdm-init">
<primary sortas="f-gdm">gdm</primary>
</indexterm>
<para revision="sysv">
To start the <command>gdm</command> automatically when the system
is booted, install the <filename>/etc/rc.d/init.d/gdm</filename>
init script included in the <xref linkend="bootscripts"/> package and
set the default runlevel to 5 (graphical login) as the
<systemitem class="username">root</systemitem> user:
</para>
<para revision="systemd">
To start the <command>gdm</command> daemon at boot, enable
the previously installed systemd unit by running the following command
as the <systemitem class="username">root</systemitem> user:
</para>
<screen role="root" revision="sysv"><userinput>make install-gdm</userinput></screen>
<para revision="sysv">
In order to permanently set the default runlevel to 5, starting the
<command>gdm</command> greeter screen automatically, you can modify
<filename>/etc/inittab</filename>. As the <systemitem
class="username">root</systemitem> user:
</para>
<screen role="root" revision="sysv"><userinput>sed /initdefault/s/3/5/ -i /etc/inittab</userinput></screen>
<para revision="sysv">
You should also disable default elogind power management:
</para>
<screen role="root" revision="sysv"><userinput>cat &gt;&gt; /etc/elogind/logind.conf &lt;&lt; "EOF"
<literal>AllowSuspend=no
AllowHibernation=no</literal>
EOF</userinput></screen>
<screen role="root" revision="systemd"><userinput>systemctl enable gdm</userinput></screen>
</sect3>
</sect2>
<sect2 role="content">
<title>Contents</title>
<segmentedlist>
<segtitle>Installed Programs</segtitle>
<segtitle>Installed Libraries</segtitle>
<segtitle>Installed Directories</segtitle>
<seglistitem>
<seg>
gdm, gdmflexiserver, and gdm-screenshot
</seg>
<seg>
libgdm.so and pam_gdm.so (PAM Module)
</seg>
<seg>
/etc/gdm,
/usr/include/gdm,
/usr/share/gdm,
/usr/share/help/*/gdm,
/var/cache/gdm,
/var/lib/gdm,
/var/log/gdm, and
/var/run/gdm
</seg>
</seglistitem>
</segmentedlist>
<variablelist>
<bridgehead renderas="sect3">Short Descriptions</bridgehead>
<?dbfo list-presentation="list"?>
<?dbhtml list-presentation="table"?>
<varlistentry id="gdm-prog">
<term><command>gdm</command></term>
<listitem>
<para>
is a login prompt for <application>GNOME</application>.
</para>
<indexterm zone="gdm gdm-prog">
<primary sortas="b-gdm">gdm</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="gdm-screenshot">
<term><command>gdm-screenshot</command></term>
<listitem>
<para>
is a screenshot tool for <application>GDM</application>.
</para>
<indexterm zone="gdm gdm-screenshot">
<primary sortas="b-gdm-screenshot">gdm-screenshot</primary>
</indexterm>
</listitem>
</varlistentry>
</variablelist>
</sect2>
</sect1>