[bf8c11f] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 | ]>
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| 7 |
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| 8 | <sect1 id="ch-boot-settingenviron">
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| 9 | <?dbhtml filename="settingenvironment.html"?>
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| 10 |
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| 11 | <title>Setting Up the Environment</title>
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| 12 |
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[cbfa0a3] | 13 | <para>The new instance of the shell that will start when the system is booted is a <emphasis>login</emphasis>
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| 14 | shell, which will read <filename>.bash_profile</filename> file. Create the
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[3c2fa25] | 15 | <filename>.bash_profile</filename> file now:</para>
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[bf8c11f] | 16 |
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[3c2fa25] | 17 | <screen><userinput>cat > ${LFS}/root/.bash_profile << "EOF"
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[2bafd9e] | 18 | <literal>set +h
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| 19 | PS1='\u:\w\$ '
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[bf8c11f] | 20 | LC_ALL=POSIX
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| 21 | PATH=/bin:/usr/bin:/sbin:/usr/sbin:/tools/bin:/tools/sbin
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| 22 | export LC_ALL PATH PS1</literal>
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| 23 | EOF</userinput></screen>
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| 24 |
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[3c2fa25] | 25 | <para>The <envar>LC_ALL</envar> variable controls the localization of
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| 26 | certain programs, making their messages follow the conventions of a
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[351f7ef0] | 27 | specified country.
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[3c2fa25] | 28 | Setting <envar>LC_ALL</envar> to <quote>POSIX</quote> or <quote>C</quote>
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| 29 | (the two are equivalent) ensures that everything will work as expected
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[0636f6c] | 30 | on your temporary system.</para>
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[bf8c11f] | 31 |
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[3c2fa25] | 32 | <para>By putting <filename class="directory">/tools/bin</filename> at
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| 33 | the end of the standard <envar>PATH</envar>, all the programs installed in
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[5be6331] | 34 | <xref linkend="chapter-temp-system"/> are only picked up by the shell
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[3c2fa25] | 35 | if they have not yet been built on the target system. This configuration
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| 36 | forces use of the final system binaries as they are built over the
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[0636f6c] | 37 | temp-system, minimising the chance of final system programs being built
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[5be6331] | 38 | against the temp-system.</para>
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[bf8c11f] | 39 |
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| 40 | </sect1>
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