diff --git a/documentation/ref-manual/introduction.xml b/documentation/ref-manual/introduction.xml
index 57e4a25853..0b165443f9 100644
--- a/documentation/ref-manual/introduction.xml
+++ b/documentation/ref-manual/introduction.xml
@@ -359,14 +359,14 @@
                 The following list shows the required packages by function
                 given a supported CentOS Linux distribution:
                 <note>
-                    For CentOS 6.x, some of the versions of the components
-                    provided by the distribution are too old (e.g. Git, Python,
-                    and tar).
-                    It is recommended that you install the buildtools in order
-                    to provide versions that will work with the OpenEmbedded
-                    build system.
-                    For information on how to install the buildtools tarball,
-                    see the
+                    For CentOS 6.x, some of the versions
+                    of the components provided by the distribution are
+                    too old (e.g. Git, Python, and tar).
+                    It is recommended that you install the buildtools
+                    in order to provide versions that will work with
+                    the OpenEmbedded build system.
+                    For information on how to install the buildtools
+                    tarball, see the
                     "<link linkend='required-git-tar-and-python-versions'>Required Git, Tar, and Python Versions</link>"
                     section.
                 </note>
@@ -396,7 +396,16 @@
                         <ulink url='&YOCTO_DOCS_ADT_URL;#using-the-adt-installer'>Application Development Toolkit (ADT) Installer</ulink>:
                         <literallayout class='monospaced'>
      $ sudo yum install autoconf automake libtool glib2-devel libarchive-devel
-                        </literallayout></para></listitem>
+                        </literallayout>
+                        <note>
+                            For CentOS 6.x, in order for the
+                            ADT installer script to work, you must have
+                            installed the <filename>liblzma5</filename>,
+                            <filename>libarchive3.x</filename>, and
+                            <filename>libarchive-devel-3.1.3</filename>
+                            (or older) packages, in that order.
+                        </note>
+                        </para></listitem>
                     <listitem><para><emphasis>OpenEmbedded Self-Test (<filename>oe-selftest</filename>):</emphasis>
                         Packages needed if you are going to run
                         <filename>oe-selftest</filename>: