mirror of
https://git.linuxfromscratch.org/lfs.git
synced 2025-01-19 13:37:39 +00:00
5336641115
Clean up Eudev configure options. Update host requirements to require GCC-4.7 or later. Clarify that setting and using the LFS variable assumes the bash shell. git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@10974 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
57 lines
2.6 KiB
XML
57 lines
2.6 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;
|
|
]>
|
|
|
|
<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>
|
|
|
|
<caution>
|
|
<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>
|
|
</caution>
|
|
|
|
<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. In addition, the shell specified in the
|
|
<filename>/etc/passwd</filename> file for all users that need the
|
|
<envar>LFS</envar> variable needs to be bash to ensure that the
|
|
<filename>/root/.bash_profile</filename> file is incorporated as a part of
|
|
the login process.</para></note>
|
|
|
|
</sect1>
|