Text updated for cross2 chapter 9

git-svn-id: http://svn.linuxfromscratch.org/LFS/branches/cross2@11928 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

1 files changed, 4 insertions, 138 deletions

diff --git a/chapter09/introduction.xml b/chapter09/introduction.xml
index cbc197a7b..875003f14 100644
--- a/chapter09/introduction.xml
+++ b/chapter09/introduction.xml
@@ -18,12 +18,6 @@
     process must be organized to ensure the tasks are performed in the correct
     order but, at the same time, be executed as fast as possible.</para>
 
-<!--    <para>In the packages that were installed in Chapter&nbsp;6, there were two
-    different boot systems installed.  LFS provides the ability to easily
-    select which system the user wants to use and to compare and contrast the
-    two systems by actually running each system on the local computer.  The
-    advantages and disadvantages of these systems is presented below.</para>-->
-
   <sect2 id='sysv-desc'>
     <title>System V</title>
 
@@ -39,15 +33,13 @@
     <filename>/etc/inittab</filename> file and is organized into run levels that
     can be run by the user:</para>
 
-<literallayout>
-0 &mdash; halt
+<literallayout>0 &mdash; halt
 1 &mdash; Single user mode
 2 &mdash; Multiuser, without networking
 3 &mdash; Full multiuser mode
 4 &mdash; User definable
 5 &mdash; Full multiuser mode with display manager
-6 &mdash; reboot
-</literallayout>
+6 &mdash; reboot</literallayout>
 
     <para>The usual default run level is 3 or 5.</para>
 
@@ -69,7 +61,7 @@
 
     <itemizedlist>
       <listitem>
-          <para>Slower to boot.  A medium speed base LFS system 
+          <para>May be slower to boot.  A medium speed base LFS system 
           takes 8-12 seconds where the boot time is measured from the 
           first kernel message to the login prompt.  Network 
           connectivity is typically established about 2 seconds 
@@ -94,132 +86,6 @@
     </itemizedlist>
 
   </sect2>
-<!--
-  <sect2 id='sysd-desc'>
-    <title>Systemd</title>
-
-    <para>Systemd is a group of interconnected programs that handles system and
-    individual process requests.  It provides a dependency system between
-    various entities called "units".  It automatically addresses dependencies
-    between units and can execute several startup tasks in parallel.  It
-    provides login, inetd, logging, time, and networking services. </para>
-
-    <bridgehead renderas="sect3">Advantages</bridgehead>
-
-    <itemizedlist>
-      <listitem>
-          <para>Used on many established distributions by default.</para>
-      </listitem>
-
-      <listitem>
-          <para>There is extensive documentation. 
-          See <ulink url="http://www.freedesktop.org/wiki/Software/systemd/"/>.</para>
-      </listitem>
-
-      <listitem>
-          <para>Parallel execution of boot processes. A medium speed
-          base LFS system takes 6-10 seconds from kernel start to a 
-          login prompt.  Network connectivity is typically established 
-          about 2 seconds after the login prompt.  More complex startup
-          procedures may show a greater speedup when compared to System V.</para>
-      </listitem>
-
-      <listitem>
-          <para>Implements advanced features such as control groups to 
-          manage related processes.</para>
-      </listitem>
-
-      <listitem>
-          <para>Maintains backward compatibility with System V programs 
-          and scripts.</para>
-      </listitem>
-    </itemizedlist>
-
-    <bridgehead renderas="sect3">Disadvantages</bridgehead>
-
-    <itemizedlist>
-      <listitem>
-          <para>There is a substantial learning curve.</para>
-      </listitem>
-
-      <listitem>
-          <para>Some advanced features such as dbus or cgroups cannot be
-          disabled if they are not otherwise needed.</para>
-      </listitem>
-
-      <listitem>
-          <para>Although implemented as several executable programs
-          the user cannot choose to implement only the portions desired.</para>
-      </listitem>
-
-      <listitem>
-          <para>Due to the nature of using compiled programs, systemd is
-          more difficult to debug.</para>
-      </listitem>
-
-      <listitem>
-          <para>Logging is done in a binary format.  Extra tools must
-          be used to process logs or additional processes must be implemented
-          to duplicate traditional logging programs.</para>
-      </listitem>
-
-    </itemizedlist>
-
-  </sect2>
--->
-<!--
-  <sect2 id='sysv'>
-    <title>Selecting a Boot Method</title>
-
-    <para>Selecting a boot method in LFS is relatively easy.  
-    Both systems are installed side-by-side.  The only task needed is to
-    ensure the files that are needed by the system have the correct names.
-    The following scripts do that.</para>
-
-<screen><userinput remap="install">cat &gt; /usr/sbin/set-systemd &lt;&lt; "EOF"
-#! /bin/bash
 
-ln -svfn init-systemd   /sbin/init
-ln -svfn init.d-systemd /etc/init.d
-
-for tool in halt poweroff reboot runlevel shutdown telinit; do
-  ln -sfvn  ${tool}-systemd   /sbin/${tool}
-  ln -svfn  ${tool}-systemd.8 /usr/share/man/man8/${tool}.8
-done
-
-echo "Now reboot with /sbin/reboot-sysv"
-EOF
-
-chmod 0744 /usr/sbin/set-systemd
-
-cat &gt; /usr/sbin/set-sysv &lt;&lt; "EOF"
-#! /bin/bash
-
-ln -sfvn init-sysv    /sbin/init
-ln -svfn init.d-sysv  /etc/init.d
-
-for tool in halt poweroff reboot runlevel shutdown telinit; do
-  ln -sfvn  ${tool}-sysv   /sbin/${tool}
-  ln -svfn  ${tool}-sysv.8 /usr/share/man/man8/${tool}.8
-done
-
-echo "Now reboot with /sbin/reboot-systemd"
-EOF
-
-chmod 0744 /usr/sbin/set-sysv</userinput></screen>
-
-  <note><para>The comment about the correct command to reboot in the 
-  above scripts is correct.  The reboot command for the current boot
-  system must be used after the script changes the default reboot command.
-  </para></note>
-
-  <para>Now set the desired boot system.  The default is System V:</para>
-
-<screen><userinput remap="install">/usr/sbin/set-sysv</userinput></screen>
-
-  <para>Changing the boot system can be done at any time by running the 
-  appropriate script above and rebooting.</para>
-
-  </sect2>
--->
 </sect1>
+