|
|
@@ -0,0 +1,50 @@
|
|
|
+<?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;
|
|
|
+]>
|
|
|
+
|
|
|
+<sect1 id="ch-partitioning-aboutlfs">
|
|
|
+ <?dbhtml filename="aboutlfs.html"?>
|
|
|
+
|
|
|
+ <title>Setting The $LFS Variable</title>
|
|
|
+
|
|
|
+ <para>Throughout this book, the environment variable <envar>LFS</envar> will
|
|
|
+ be used several times. You should ensure that this variable is always defined
|
|
|
+ throughout the LFS build process. It should be set to the name of the
|
|
|
+ directory where you will be building your LFS system - we will use
|
|
|
+ <filename class="directory">/mnt/lfs</filename> as an example, but the
|
|
|
+ directory choice is up to you. If you are building LFS on a separate
|
|
|
+ partition, this directory will be the mount point for the partition.
|
|
|
+ Choose a directory location and set the variable with the
|
|
|
+ following command:</para>
|
|
|
+
|
|
|
+<screen role="nodump"><userinput>export LFS=<replaceable>/mnt/lfs</replaceable></userinput></screen>
|
|
|
+
|
|
|
+ <para>Having this variable set is beneficial in that commands such as
|
|
|
+ <command>mkdir -v $LFS/tools</command> can be typed literally. The shell
|
|
|
+ will automatically replace <quote>$LFS</quote> with
|
|
|
+ <quote>/mnt/lfs</quote> (or whatever the variable was set to) when it
|
|
|
+ processes the command line.</para>
|
|
|
+
|
|
|
+ <para>Do not forget to check that <envar>LFS</envar> is set whenever
|
|
|
+ you leave and reenter the current working environment (such as when doing a
|
|
|
+ <command>su</command> to <systemitem class="username">root</systemitem> or
|
|
|
+ another user). Check that the <envar>LFS</envar> variable is set up
|
|
|
+ properly with:</para>
|
|
|
+
|
|
|
+<screen role="nodump"><userinput>echo $LFS</userinput></screen>
|
|
|
+
|
|
|
+ <para>Make sure the output shows the path to your LFS system's build
|
|
|
+ location, which is <filename class="directory">/mnt/lfs</filename> if the
|
|
|
+ provided example was followed. If the output is incorrect, use the command
|
|
|
+ given earlier on this page to set <envar>$LFS</envar> to the correct
|
|
|
+ directory name.</para>
|
|
|
+
|
|
|
+ <note><para>One way to ensure that the <envar>LFS</envar> variable is always
|
|
|
+ set is to edit the <filename>.bash_profile</filename> file in both your
|
|
|
+ personal home directory and in <filename>/root/.bash_profile</filename> and
|
|
|
+ enter the export command above. </para></note>
|
|
|
+
|
|
|
+</sect1>
|
DJ Lucas