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1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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3 | <!ENTITY % general-entities SYSTEM "../general.ent">
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4 | %general-entities;
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5 | ]>
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6 | <sect1 id="prepare-aboutlfs">
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7 | <title>About $LFS</title>
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8 | <?dbhtml filename="aboutlfs.html"?>
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9 |
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10 | <para>Throughout this book the environment variable LFS will be used several
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11 | times. It is paramount that this variable is always defined. It should be set
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12 | to the mount point you chose for your LFS partition. Check that your LFS
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13 | variable is set up properly with:</para>
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14 |
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15 | <screen><userinput>echo $LFS</userinput></screen>
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16 |
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17 | <para>Make sure the output shows the path to your LFS partition's mount
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18 | point, which is <filename class="directory">/mnt/lfs</filename> if you
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19 | followed our example. If the output is wrong, you can always set the variable
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20 | with:</para>
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21 |
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22 | <screen><userinput>export LFS=/mnt/lfs</userinput></screen>
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23 |
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24 | <para>Having this variable set means that if you are told to run a command like
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25 | <userinput>mkdir $LFS/tools</userinput>, you can type it literally. Your shell
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26 | will replace "$LFS" with "/mnt/lfs" (or whatever you set the variable to) when
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27 | it processes the command line.</para>
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28 |
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29 | <para>Don't forget to check that <quote>$LFS</quote> is set whenever you leave and
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30 | reenter the environment (as when doing an <quote>su</quote> to root or another user).
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31 | </para>
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32 |
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33 | </sect1>
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