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				|  |  | +<sect1 id="pre-audience">
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				|  |  | +<title>Audience</title>
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				|  |  | +<?dbhtml filename="audience.html" dir="preface"?>
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				|  |  | +
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				|  |  | +<sect2>
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				|  |  | +<title>Who would want to read this book</title>
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				|  |  | +
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				|  |  | +<para>There are many reasons why somebody would want to read this book. The 
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				|  |  | +principle reason being to install an Linux system straight from the source 
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				|  |  | +code. A question many people raise is "Why go through all the hassle of 
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				|  |  | +manually building a Linux system from scratch when you can just download and 
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				|  |  | +install an existing one?". That is a good question and is the impetus for this 
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				|  |  | +section of the book.</para>
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				|  |  | +
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				|  |  | +<para>One important reason for LFS' existence is to help people learn how a 
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				|  |  | +Linux system works from the inside out. Building a LFS system helps demonstrate 
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				|  |  | +to you what makes Linux tick, how things work together and depend on each 
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				|  |  | +other. One of the best things that this learning experience provides in the 
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				|  |  | +ability to customize Linux to your own tastes and needs.</para>
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				|  |  | +
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				|  |  | +<para>A key benefit of LFS is that you have more control of your system
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				|  |  | +without relying on someone else's Linux implementation. With LFS, you are
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				|  |  | +in the driver's seat and dictate every aspect of your system, such as the
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				|  |  | +directory layout and bootscript setup. You also dictate where, why and how
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				|  |  | +programs are installed.</para>
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				|  |  | +
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				|  |  | +<para>Another benefit of LFS is the ability to create a very compact Linux 
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				|  |  | +system. When installing a regular distribution, you are usually forced to 
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				|  |  | +install several programs which you are likely never to use. They're just 
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				|  |  | +sitting there wasting precious disk space (or worse, CPU cycles). It isn't 
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				|  |  | +difficult to build a LFS system less than 100 MB. Does that still sound like a 
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				|  |  | +lot? A few of us have been working on creating a very small embedded LFS 
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				|  |  | +system. We successfully built a system that was just enough to run the Apache 
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				|  |  | +web server with approximately 8MB of disk space used. Further stripping could 
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				|  |  | +bring that down to 5 MB or less. Try that with a regular distribution.</para>
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				|  |  | +
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				|  |  | +<para>We could compare distributed Linux to a hamburger you buy at a
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				|  |  | +fast-food restaurant -- you have no idea what you are eating. LFS, on the
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				|  |  | +other hand, doesn't give you a hamburger, but the recipe to make a hamburger. 
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				|  |  | +This allows you to review it, to omit unwanted ingredients, and to
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				|  |  | +add your own ingredients which enhance the flavor of your burger. When you
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				|  |  | +are satisfied with the recipe, you go on to preparing it. You make it just
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				|  |  | +the way you like it: broil it, bake it, deep-fry it, barbecue it, or eat it
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				|  |  | +tar-tar (raw).</para>
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				|  |  | +
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				|  |  | +<para>Another analogy that we can use is that of comparing LFS with a 
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				|  |  | +finished house. LFS will give you the skeletal plan of a house, but it's up 
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				|  |  | +to you to build it. You have the freedom to adjust your plans as you
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				|  |  | +go.</para>
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				|  |  | +
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				|  |  | +<para>One last advantage of a custom built Linux system is security.
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				|  |  | +By compiling the entire system from source code, you are empowered to audit
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				|  |  | +everything and apply all the security patches you feel are needed. You don't 
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				|  |  | +have to wait for somebody else to compile binary packages that fix a security
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				|  |  | +hole. Unless you examine the patch and implement it yourself you have no
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				|  |  | +guarantee that the new binary package was built correctly and actually fixes the
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				|  |  | +problem (adequately).</para>
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				|  |  | +
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				|  |  | +<para>There are too many good reasons to build your own LFS system for them all 
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				|  |  | +to be listed here. This section is only the tip of the iceberg.  As you 
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				|  |  | +continue in your LFS experience, you will find on your own the power that 
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				|  |  | +information and knowledge truly bring.</para>
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				|  |  | +
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				|  |  | +</sect2>
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				|  |  | +
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				|  |  | +<sect2>
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				|  |  | +<title>Who would not want to read this book</title>
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				|  |  | +
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				|  |  | +<para>There are probably some, for whatever reason, would feel that they do not 
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				|  |  | +want to read this book. If you do not wish to build your own Linux system from 
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				|  |  | +scratch, then you probably don't want to read this book. Our goal is to help 
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				|  |  | +you build a complete and usable foundation-level system. If you only want to 
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				|  |  | +know what happens while your computer boots, then we recommend the <quote>From 
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				|  |  | +Power Up To Bash Prompt</quote> HOWTO. The HOWTO builds a bare system which is 
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				|  |  | +similar to that of this book, but it focuses strictly on creating a system 
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				|  |  | +capable of booting to a BASH prompt.</para>
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				|  |  | +
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				|  |  | +<para>While you decide which to read, consider your objective. If you wish
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				|  |  | +to build a Linux system while learning a bit along the way, then this book
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				|  |  | +is probably your best choice. If your objective is strictly educational and
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				|  |  | +you do not have any plans for your finished system, then the
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				|  |  | +<quote>From Power Up To Bash Prompt</quote> HOWTO is probably a better choice.</para>
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				|  |  | +
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				|  |  | +<para>The <quote>From Power Up To Bash Prompt</quote> HOWTO is located at 
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				|  |  | +<ulink url="http://axiom.anu.edu.au/~okeefe/p2b/"/> or on The Linux 
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				|  |  | +Documentation Project's website at <ulink url="http://www.tldp.org/HOWTO/From-
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				|  |  | +PowerUp-To-Bash-Prompt-HOWTO.html"/>.</para> 
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				|  |  | +
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				|  |  | +</sect2>
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				|  |  | +
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				|  |  | +</sect1>
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