[install-guide/F21-rewrite] Updating description of inst.stage2 in Boot Options

[pbokoc]

commit 758f2e9ed29e2c79a0341c3b58ec497bff0ee097
Author: Petr Bokoc <pbokoc at redhat.com>
Date:   Tue Sep 23 15:51:49 2014 +0200

    Updating description of inst.stage2 in Boot Options

 en-US/Boot_Options.xml |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/en-US/Boot_Options.xml b/en-US/Boot_Options.xml
index cacc661..704d064 100644
--- a/en-US/Boot_Options.xml
+++ b/en-US/Boot_Options.xml
@@ -189,9 +189,9 @@
                 <varlistentry>
                     <term><option>inst.stage2=</option></term>
                     <listitem>
-                        <para>
-                            Specifies the location of the installation program runtime image to be loaded. The syntax is the same as in <xref linkend="tabl-boot-options-sources" />. This option will ignore everything except for the image itself, it is not possible to use it to specify the location of packages.
-                        </para>
+						<para>
+							Specifies the location of the installation program runtime image to be loaded. The syntax is the same as in <xref linkend="tabl-boot-options-sources" />. This option expects a path to a directory containing a valid <filename>.treeinfo</filename> file; the location of the runtime image will be read from this file if found. If a <filename>.treeinfo</filename> file is not available, <application>Anaconda</application> will try to load the image from <filename>LiveOS/squashfs.img</filename>.
+						</para>
                     </listitem>
                 </varlistentry>
                 <varlistentry>