Trunk is now identical to Testing

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@4648 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

1 files changed, 45 insertions, 1 deletions

diff --git a/chapter06/chroot.xml b/chapter06/chroot.xml
index 9ef1cca3e..c9afcdc13 100644
--- a/chapter06/chroot.xml
+++ b/chapter06/chroot.xml
@@ -7,11 +7,55 @@
 <title>Entering the Chroot Environment</title>
 <?dbhtml filename="chroot.html"?>
 
-<para>Enter the chroot environment:</para>
+<para>It is time to enter the chroot environment to begin
+building and installing the final LFS system. As user
+<emphasis>root</emphasis>, run the following command to enter the
+realm that is, at the moment, populated with only the temporary
+tools:</para>
 
 <screen><userinput>chroot "$LFS" /tools/bin/env -i \
     HOME=/root TERM="$TERM" PS1='\u:\w\$ ' \
     PATH=/bin:/usr/bin:/sbin:/usr/sbin:/tools/bin \
     /tools/bin/bash --login +h</userinput></screen>
 
+<para>The <parameter>-i</parameter> option given to the
+<command>env</command> command will clear all variables of the chroot
+environment. After that, only the <envar>HOME</envar>,
+<envar>TERM</envar>, <envar>PS1</envar>, and
+<envar>PATH</envar> variables are set again. The
+<parameter>TERM=$TERM</parameter> construct will set the
+<envar>TERM</envar> variable inside chroot to the same value as
+outside chroot. This variable is needed for programs like
+<command>vim</command> and <command>less</command> to operate
+properly.  If other variables are needed, such as
+<envar>CFLAGS</envar> or <envar>CXXFLAGS</envar>, this is
+a good place to set them again.</para>
+
+<para>From this point on, there is no need to use the
+<envar>LFS</envar> variable anymore, because all work will be
+restricted to the LFS file system.  This is because the Bash shell is
+told that <filename class="directory">$LFS</filename> is now the root
+(<filename class="directory">/</filename>) directory.</para>
+
+<para>Notice that <filename class="directory">/tools/bin</filename> 
+comes last in the <envar>PATH</envar>. This means that a
+temporary tool will not be used anymore as soon as its final version
+is installed. This occurs when the shell does not <quote>remember</quote> the
+locations of executed binaries&mdash;for this reason, hashing is switched
+off by passing the <parameter>+h</parameter> option to <command>bash</command>.</para>
+
+<para>It is important that all the commands throughout the remainder
+of this chapter and the following chapters be run from within the
+chroot environment. If you leave this environment for any reason
+(rebooting for example), remember to first mount the <systemitem
+class="filesystem">proc</systemitem> and <systemitem
+class="filesystem">devpts</systemitem> file systems (discussed in the
+previous section) and enter chroot again before continuing with the
+installations.</para>
+
+<para>Note that the bash prompt will say <quote>I have no
+name!</quote> This is normal because the
+<filename>/etc/passwd</filename> file has not been created yet.</para>
+
 </sect1>
+