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Clarify some things in Intro to chroot; simplify some verbiage.

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David Bryant 2022-09-30 11:22:10 -05:00
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10
chapter07/introduction.xml
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@ -11,22 +11,22 @@
<title>Introduction</title> <title>Introduction</title>
<para>This chapter shows how to build the last missing bits of the temporary <para>This chapter shows how to build the last missing bits of the temporary
system: the tools needed by the build machinery of various packages. Now system: the tools needed to build the various packages. Now
that all circular dependencies have been resolved, a <quote>chroot</quote> that all circular dependencies have been resolved, a <quote>chroot</quote>
environment, completely isolated from the host operating system (except for environment, completely isolated from the host operating system (except for
the running kernel), can be used for the build.</para> the running kernel), can be used for the build.</para>
<para>For proper operation of the isolated environment, some communication <para>For proper operation of the isolated environment, some communication
with the running kernel must be established. This is done through the with the running kernel must be established. This is done via the
so-called <emphasis>Virtual Kernel File Systems</emphasis>, which must be so-called <emphasis>Virtual Kernel File Systems</emphasis>, which must be
mounted when entering the chroot environment. You may want to check mounted before entering the chroot environment. You may want to verify
that they are mounted by issuing <command>findmnt</command>.</para> that they are mounted by issuing the <command>findmnt</command> command.</para>
<para>Until <xref linkend="ch-tools-chroot"/>, the commands must be <para>Until <xref linkend="ch-tools-chroot"/>, the commands must be
run as <systemitem class="username">root</systemitem>, with the run as <systemitem class="username">root</systemitem>, with the
<envar>LFS</envar> variable set. After entering chroot, all commands <envar>LFS</envar> variable set. After entering chroot, all commands
are run as &root;, fortunately without access to the OS of the computer are run as &root;, fortunately without access to the OS of the computer
you built LFS on. Be careful anyway, as it is easy to destroy the whole you built LFS on. Be careful anyway, as it is easy to destroy the whole
LFS system with badly formed commands.</para> LFS system with bad commands.</para>
</sect1> </sect1>