| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849 |
- <sect1 id="ch05-introduction">
- <title>Introduction</title>
- <?dbhtml filename="introduction.html" dir="chapter05"?>
- <para>In this chapter we will compile and install a minimal
- Linux system. This system will contain just enough tools to be able
- to start constructing the final LFS system in the next chapter.</para>
- <para>The building of this minimal system is done in two steps: first we
- build a brand-new and host-independent toolchain (compiler, assembler,
- linker and libraries), and then use this to build all the other essential
- tools.</para>
- <para>The files compiled in this chapter will be installed under the
- <filename class="directory">$LFS/tools</filename> directory,
- to keep them separate from the files installed in the next chapter.
- Since the packages compiled here are merely temporary, we don't want
- them to pollute the soon-to-be LFS system.</para>
- <para>The key to learning what makes a Linux system work is to know
- what each package is used for, why the user or the system needs it.
- For this purpose a short summary of the content of each package is given
- before the actual installation instructions. For a short description of
- each program in a package, please refer to the corresponding section in
- <xref linkend="appendixa"/>.</para>
- <para>Several of the packages are patched before compilation, but only when
- the patch is needed to circumvent a problem. Often the patch is needed in
- both this and the next chapter, but sometimes in only one of them. So, don't
- worry when instructions for a downloaded patch seem to be missing.</para>
- <para>During the installation of most packages you will
- see all kinds of compiler warnings scroll by on your screen. These are
- normal and can be safely ignored. They are just what they say they are:
- warnings -- mostly about improper, but not illegal, use of the C or C++
- syntax. It's just that C standards have changed rather often and some
- packages still use the older standard, which is not really a problem.</para>
- <para>Before continuing, make sure the LFS environment variable is set up
- properly (if you decided to make use of it) by executing the following:</para>
- <para><screen><userinput>echo $LFS</userinput></screen></para>
- <para>Make sure the output shows the path to your LFS partition's mount
- point, which is <filename class="directory">/mnt/lfs</filename> if you
- followed our example.</para>
- </sect1>
|
