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diff --git a/chapter02/install.xml b/chapter02/install.xml new file mode 100644 index 000000000..37fdbbb36 --- /dev/null +++ b/chapter02/install.xml @@ -0,0 +1,102 @@ +<sect1 id="ch02-install"> +<title>How to install the software</title> + +<para> +Before you can actually start doing something with a package, you need +to unpack it first. Often you will find the package files being tar'ed and +gzip'ed (you can determind this by looking at the extension of the file. +tar'ed and gzip'ed archives have a .tar.gz or .tgz extension for +example)). I'm not going to write down every time how to ungzip and how +to untar an archive. I will tell you how to do that once, in this paragraph. +There is also the possibility that you have the ability of downloading +a .tar.bz2 file. Such a file is tar'ed and compressed with the bzip2 program. +Bzip2 achieves a better compression than the commonly used gzip does. In +order to use bz2 archives you need to have the bzip2 program installed. +Most if not every distribution comes with this program so chances are +high it is already installed on your system. If not, install it using +your distribution's installation tool. +</para> + +<para> +To start with, change to the $LFS/usr/src directory by running: +</para> + +<blockquote><literallayout> + + <userinput>cd $LFS/usr/src</userinput> + +</literallayout></blockquote> + +<para> +When you have a file that is tar'ed and gzip'ed, you unpack it by +running either one of the following two commands, depending on the +filename format: +</para> + +<blockquote><literallayout> + + <userinput>tar xvzf filename.tar.gz</userinput> + <userinput>tar xvzf filename.tgz</userinput> + +</literallayout></blockquote> + + +<para> +When you have a file that is tar'ed and bzip'ed, you unpack it by +running: +</para> + +<blockquote><literallayout> + + <userinput>bzcat filename.tar.bz2 | tar xv</userinput> + +</literallayout></blockquote> + +<para> +Some tar programs (most of them nowadays but not all of them) are +slightly modified to be able to use bzip2 files directly using either +the I or the y tar parameter which works the same as the z tar parameter +to handle gzip archives. +</para> + +<para> +When you have a file that is tar'ed, you unpack it by running: +</para> + +<blockquote><literallayout> + + <userinput>tar xvf filename.tar</userinput> + +</literallayout></blockquote> + +<para> +When the archive is unpacked a new directory will be created under the +current directory (and this document assumes that you unpack the archives +under the $LFS/usr/src directory). You have to enter that new directory +before you continue with the installation instructions. So everytime the +book is going to install a program, it's up to you to unpack the source +archive. +</para> + +<para> +After you have installed a package you can do two things with it. You can +either delete the directory that contains the sources or you can keep it. +If you decide to keep it, that's fine by me. But if you need the same package +again in a later chapter you need to delete the directory first before using +it again. If you don't do this, you might end up in trouble because old +settings will be used (settings that apply to your normal Linux system but +which don't always apply to your LFS system). Doing a simple make clean +or make distclean does not always guarantee a totally clean source tree. +The configure script can also have files lying around in various +subdirectories which aren't always removed by a make clean process. +</para> + +<para> +There is on exception to that rule: don't remove the linux kernel source +tree. A lot of programs need the kernel headers, so that's the only +directory you don't want to remove, unless you are not going to +compile any software anymore. +</para> + +</sect1> + |