| [6370fa6] | 1 | <sect1 id="ch06-chroot">
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| [2c094d6] | 2 | <title>Entering the chroot environment</title>
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| [a862ce2] | 3 | <?dbhtml filename="chroot.html" dir="chapter06"?>
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| [6370fa6] | 4 |
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| [2c094d6] | 5 | <para>It is time to enter the chroot environment in order to begin installing
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| [44c2fd8] | 6 | the packages we need. Before you can chroot, however, you need to become
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| 7 | <emphasis>root</emphasis>, since only <emphasis>root</emphasis>
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| 8 | can execute the <userinput>chroot</userinput> command.</para>
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| 9 |
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| 10 | <para>Become <emphasis>root</emphasis> and run the following command
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| [2c094d6] | 11 | to enter the chroot environment:</para>
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| [44c2fd8] | 12 |
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| [bc82645e] | 13 | <para><screen><userinput>chroot $LFS /stage1/bin/env -i \
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| [44c2fd8] | 14 | HOME=/root TERM=$TERM PS1='\u:\w\$ ' \
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| [bc82645e] | 15 | PATH=/bin:/usr/bin:/sbin:/usr/sbin:/stage1/bin \
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| 16 | LDFLAGS="-s" \
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| 17 | /stage1/bin/bash --login</userinput></screen>
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| [44c2fd8] | 18 | </para>
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| 19 |
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| [bc82645e] | 20 | <para><screen><userinput>set +h</userinput></screen></para>
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| 21 |
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| [44c2fd8] | 22 | <para>The <userinput>-i</userinput> option given to the
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| [2c094d6] | 23 | <userinput>env</userinput> command will clear all variables of the chroot
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| [44c2fd8] | 24 | environment. After that, only the HOME, TERM, PS1 and PATH variables are
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| 25 | set again. The TERM=$TERM construct will set the TERM variable inside chroot
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| 26 | to the same value as outside chroot; this variable is needed for programs
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| 27 | like vim and less to operate properly. If you need other variables present,
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| 28 | such as CFLAGS or CXXFLAGS, this is a good place to set them again.</para>
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| 29 |
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| [a07854b] | 30 | <para>From this point on there's no need to use the LFS variable anymore,
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| [44c2fd8] | 31 | because everything you do will be restricted to the LFS file system -- since
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| 32 | what the shell thinks is <filename class="directory">/</filename> is actually
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| [7fcde5c] | 33 | the value of <filename class="directory">$LFS</filename>, which was passed to
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| 34 | the chroot command.</para>
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| [44c2fd8] | 35 |
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| 36 | <para>You have to make sure all the commands in the rest of this chapter and
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| [2c094d6] | 37 | in the following chapters are run from within the chroot environment.
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| [44c2fd8] | 38 | If you ever leave this environment for any reason (rebooting for example),
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| 39 | you must remember to again enter chroot and mount proc (discussed later)
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| 40 | before continuing with the installations.</para>
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| 41 |
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| 42 | <para>Note that the bash prompt will say "I have no name!" This is
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| 43 | normal, as the Glibc package hasn't been installed yet.</para>
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| [7e37742] | 44 |
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| [6370fa6] | 45 | </sect1>
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| [44c2fd8] | 46 |
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