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<sect1 id="ch04-creatingdirs">
<title>Creating directories</title>
<para>
Let's create the directory tree on the LFS partition according to the FHS
standard, which can be found at <ulink
url="http://www.pathname.com/fhs/">http://www.pathname.com/fhs/</ulink>.
Issuing the following commands will create the necessary directories:
</para>
<blockquote><literallayout>
<userinput>cd $LFS</userinput>
<userinput>mkdir -p bin boot dev/pts etc home lib mnt proc root sbin
tmp var</userinput>
<userinput>for dirname in $LFS/usr $LFS/usr/local</userinput>
<userinput><literal> do</literal></userinput>
<userinput> mkdir $dirname</userinput>
<userinput> cd $dirname</userinput>
<userinput> mkdir bin etc include lib sbin share
src tmp var</userinput>
<userinput> ln -s share/man man</userinput>
<userinput> ln -s share/doc doc</userinput>
<userinput> ln -s share/info info</userinput>
<userinput> cd $dirname/share</userinput>
<userinput> mkdir dict doc info locale man nls misc
terminfo zoneinfo</userinput>
<userinput> cd $dirname/share/man</userinput>
<userinput> mkdir man1 man2 man3 man4 man5 man6 man7
man8</userinput>
<userinput>done</userinput>
<userinput>cd $LFS/var</userinput>
<userinput>mkdir lock log mail run spool tmp</userinput>
</literallayout></blockquote>
<para>
Normally, directories are created with permission mode 755, which isn't
desired for all directories. I haven't checked if the FHS suggests
default modes for certain directories, so I'll just change the modes for
a few directories that make sense to change. The first change is a mode
0750 for the $LFS/root directory. This is to make sure that not just
everybody can enter the /root directory (the same a user would do with
/home/username directories). The second change is a mode 1777 for the tmp
directories. This way, any user can write stuff to the /tmp directory when
needed. The sticky (1) bit makes sure users can't delete other
users' files which they normally can do, because the directory is set in
such a way that everybody (owner, group, world) can write to that directory.
</para>
<blockquote><literallayout>
<userinput>cd $LFS &&</userinput>
<userinput>chmod 0750 root &&</userinput>
<userinput>chmod 1777 tmp usr/tmp usr/local/tmp var/tmp</userinput>
</literallayout></blockquote>
<para>
Now that the directories are created, copy the source files that were
downloaded in chapter 3 to some subdirectory under $LFS/usr/src (this
directory still needs to be created yet).
</para>
</sect1>
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