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Diffstat (limited to 'chapter06/creatingdirs.xml')
| -rw-r--r-- | chapter06/creatingdirs.xml | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/chapter06/creatingdirs.xml b/chapter06/creatingdirs.xml index b989b7879..e7881c982 100644 --- a/chapter06/creatingdirs.xml +++ b/chapter06/creatingdirs.xml @@ -7,7 +7,9 @@ <title>Creating Directories</title> <?dbhtml filename="creatingdirs.html"?> -<para>Create a dirs tree:</para> +<para>It is time to create some structure in the LFS file system. +Create a directory tree. Issuing the following commands will create a +standard tree:</para> <screen><userinput>install -d /{bin,boot,dev,etc/opt,home,lib,mnt} install -d /{sbin,srv,usr/local,var,opt} @@ -29,4 +31,37 @@ install -d /var/{opt,cache,lib/{misc,locate},local} install -d /opt/{bin,doc,include,info} install -d /opt/{lib,man/man{1,2,3,4,5,6,7,8}}</userinput></screen> +<para>Directories are, by default, created with permission mode 755, +but this is not desirable for all directories. In the commands above, +two changes are made—one to the home directory of user +<emphasis>root</emphasis>, and another to the directories for +temporary files.</para> + +<para>The first mode change ensures that not just anybody can enter +the <filename class="directory">/root</filename> directory—the same +as a normal user would do with his or her home directory. The second +mode change makes sure that any user can write to the <filename +class="directory">/tmp</filename> and <filename +class="directory">/var/tmp</filename> directories, but cannot remove +other users' files from them. The latter is prohibited by the +so-called <quote>sticky bit,</quote> the highest bit (1) in the 1777 +bit mask.</para> + +<sect2> +<title>FHS Compliance Note</title> + +<para>The directory tree is based on the Filesystem Hierarchy Standard +(FHS) standard (available at <ulink +url="http://www.pathname.com/fhs/"/>). Besides the tree created above, +this standard stipulates the existence of <filename +class="directory">/usr/local/games</filename> and <filename +class="directory">/usr/share/games</filename>. We do not recommend +these for a base system, however, feel free to make the system +FHS-compliant. The FHS is not precise as to the structure of the +<filename class="directory">/usr/local/share</filename> subdirectory, +so we created only the directories that are needed.</para> + +</sect2> + </sect1> + |