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Diffstat (limited to 'chapter02/aboutlfs.xml')
| -rw-r--r-- | chapter02/aboutlfs.xml | 42 |
1 files changed, 14 insertions, 28 deletions
diff --git a/chapter02/aboutlfs.xml b/chapter02/aboutlfs.xml index 6711ec3b1..8533f7382 100644 --- a/chapter02/aboutlfs.xml +++ b/chapter02/aboutlfs.xml @@ -1,56 +1,42 @@ <sect1 id="ch02-aboutlfs"> <title>About $LFS</title> -<para> -Please read the following carefully: throughout this book +<para>Please read the following carefully: throughout this book the variable $LFS will be used frequently. $LFS must at all times be replaced by the directory where the partition that contains the LFS system is mounted. How to create and where to mount the partition will be explained in full detail in chapter 4. In my case, the LFS -partition is mounted on /mnt/lfs. -</para> +partition is mounted on /mnt/lfs.</para> -<para> -For example when you are told to run a command like +<para>For example when you are told to run a command like <userinput>./configure --prefix=$LFS</userinput> you actually have to -execute <userinput>./configure --prefix=/mnt/lfs</userinput> -</para> +execute <userinput>./configure --prefix=/mnt/lfs</userinput></para> -<para> -It's important that this is done no matter where it is read; be it in -commands entered in a shell, or in a file edited or created. -</para> +<para>It's important that this is done no matter where it is read; be it in +commands entered in a shell, or in a file edited or created.</para> -<para> -A possible solution is to set the environment variable LFS. +<para>A possible solution is to set the environment variable LFS. This way $LFS can be entered literally instead of replacing it by /mnt/lfs. This is accomplished by running <userinput>export -LFS=/mnt/lfs</userinput>. -</para> +LFS=/mnt/lfs</userinput>.</para> -<para> -Now, if you are told to run a command like <userinput>./configure +<para>Now, if you are told to run a command like <userinput>./configure --prefix=$LFS</userinput> you can type that literally. Your shell will replace $LFS with /mnt/lfs when it processes the command line (meaning -when you hit enter after having typed the command). -</para> +when you hit enter after having typed the command).</para> -<para> -If you plan to use $LFS, do not forget to set the $LFS variable at all +<para>If you plan to use $LFS, do not forget to set the $LFS variable at all times. If the variable is not set and is used in a command, $LFS will be ignored and whatever is left will be executed. A command like <userinput>echo "root:x:0:0:root:/root:/bin/bash" > $LFS/etc/passwd</userinput> without the $LFS variable set will re-create your host system's /etc/passwd file. Simply put: it will -destroy your current password database file. -</para> +destroy your current password database file.</para> -<para> -One way to make sure that $LFS is set at all times is adding it to +<para>One way to make sure that $LFS is set at all times is adding it to the /root/.bash_profile and/or /root/.bashrc file(s) so that every time you login as user root, or you 'su' to user root, the $LFS variable is -set. -</para> +set.</para> </sect1> |