1 | <sect1 id="ch05-introduction">
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2 | <title>Introduction</title>
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3 |
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4 | <para>
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5 | In the following chapters we will install all the software that belongs to
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6 | a basic Linux system. After you're done with this chapter you have a
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7 | fully working Linux system. The remaining chapters deal with setting up
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8 | networking, creating the boot scripts and adding an entry to lilo.conf so
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9 | that you can boot your LFS system.
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10 | </para>
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11 |
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12 | <para>
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13 | The software in this chapter will be linked statically. These programs
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14 | will be re-installed in the next chapter and linked dynamically. The
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15 | reason for the static version first is that there is a chance that our
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16 | normal Linux system and your LFS system aren't using the same C
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17 | Library versions. If the programs in the first part are linked against
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18 | an older C library version, those programs might not work well on the
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19 | LFS system.
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20 | </para>
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21 |
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22 | <para>
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23 | The key to learn what makes Linux tick is to know exactly what packages
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24 | are used for and why you or the system needs them. Descriptions
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25 | of the package content are provided after the Installation subsection of each
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26 | package and in Appendix A as well.
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27 | </para>
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28 |
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29 | <para>
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30 | We're about to start with installing the first set of packages. These
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31 | packages will be, as previously explained, linked statically.
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32 | </para>
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33 |
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34 | <para>
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35 | During the installation of various packages you will most likely see
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36 | compiler warnings scrolling by on your screen. These are normal and can
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37 | be safely ignored. They are just that, warnings (mostly about improper
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38 | use of the C or C++ syntax, but not illegal use. It's just that often C
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39 | standards changed and packages still use the old standard which is not a
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40 | problem).
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41 | </para>
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42 |
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43 | <para>
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44 | Before we start, make sure you have the LFS environment variable setup
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45 | if you plan on using it, by running the following command:
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46 | </para>
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47 |
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48 | <blockquote><literallayout>
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49 |
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50 | <userinput>echo $LFS</userinput>
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51 |
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52 | </literallayout></blockquote>
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53 |
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54 | </sect1>
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55 |
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