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@@ -3,50 +3,53 @@
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<para>
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Please read the following carefully: throughout this book
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-the variable name $LFS will frequently be used. $LFS must at all times be
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+the variable $LFS will be used frequently. $LFS must at all times be
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replaced by the directory where the partition that contains the LFS system
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is mounted. How to create and where to mount the partition will be
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-explaind in full detail later on in chapter 4. In my case, the LFS
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-partition is mounted on /mnt/lfs. If I read this book myself and I see
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-$LFS somewhere, I will pretend that I read /mnt/lfs. If I read that
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-I have to run this command: cp inittab $LFS/etc, I actually will run this:
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-cp inittab /mnt/lfs/etc.
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+explaind in full detail in chapter 4. In my case, the LFS
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+partition is mounted on /mnt/lfs.
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+</para>
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+
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+<para>
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+For example when you are told to run a command like
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+<userinput>./configure --prefix=$LFS</userinput> you will actually run
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+<userinput>./configure --prefix=/mnt/lfs</userinput>
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</para>
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<para>
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It's important that this is done no matter where it is read; be it in
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-commands entered on the prompt, or in a file edited or created.
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+commands entered in a shell, or in a file edited or created.
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</para>
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<para>
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Another possible solution is to set the environment variable LFS.
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-This way the $LFS can be entered literally instead of replacing it by
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-something like
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-/mnt/lfs. This is accomplished by running: export LFS=/mnt/lfs.
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+This way $LFS can be entered literally instead of replacing it by
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+/mnt/lfs. This is accomplished by running <userinput>export
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+LFS=/mnt/lfs</userinput>.
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</para>
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<para>
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-If I read cp inittab $LFS/etc, I literally can type cp inittab $LFS/etc
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-and the shell will replace this command by cp inittab /mnt/lfs/etc
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-automatically.
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+Now, if you read to run a command like <userinput>./configure
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+--prefix=$LFS</userinput> you can type that literally. Your shell will
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+replace $LFS with /mnt/lfs when it processes the command line (meaning
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+when you hit enter).
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</para>
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<para>
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-Do not forget to set the $LFS variable at all times. If
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-the variable is not set and is used it in a command, $LFS will be ignored
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-and whatever
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-is left will be executed. The command cp inittab $LFS/etc without the $LFS
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-variable set will result in copying the inittab file to the /etc
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-directory, which will overwrite the host-system's inittab. A file like inittab
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-isn't that big a problem as it can easily be restored, but if
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-this mistake is made during the installation of the C Library, things might
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-be damaged
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+If you plan to use $LFS, do not forget to set the $LFS variable at all
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+times. If the variable is not set and is used it in a command, $LFS will
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+be ignored and whatever is left will be executed. A command like
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+<userinput>echo "root:x:0:0:root:/root:/bin/bash" >
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+$LFS/etc/passwd</userinput> without the $LFS variable set will
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+re-create your host system's /etc/passwd file. Simply put: it will
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+destroy your current password database file.
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</para>
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<para>
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One way to make sure that $LFS is set at all times is adding it to
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-the /root/.bash_profile and/or /root/.bashrc file(s) so that every time a
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-'su' to root is done to install LFS, the $LFS variable is set.
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+the /root/.bash_profile and/or /root/.bashrc file(s) so that every time
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+you login as user root, or you 'su' to user root, the $LFS variable is
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+set.
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</para>
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</sect1>
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Gerard Beekmans