[install-guide] BZ#979826 - Added an admonition pointing out that network auth config isn't available during install

[pbokoc]

commit 6ce96daa2fb998b9be5bc09e2497c18727cfa09b
Author: Petr Bokoc <pbokoc at redhat.com>
Date:   Mon Jul 1 22:42:18 2013 +0200

    BZ#979826 - Added an admonition pointing out that network auth config isn't available during install

 en-US/firstboot-systemuser.xml |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/en-US/firstboot-systemuser.xml b/en-US/firstboot-systemuser.xml
index 3446e2b..308eeb4 100644
--- a/en-US/firstboot-systemuser.xml
+++ b/en-US/firstboot-systemuser.xml
@@ -20,11 +20,17 @@
 			</textobject>
 		</mediaobject>                                                                                                                                       
 	</figure>
+	<important condition="install-guide">
+		<title>Note — Network Login Not Available During Installation</title>
+		<para>
+			It is not possible to configure network-based authentication during installation using the graphical interface in the current version of Fedora. This option now becomes available after the installation finishes and the system is started for the first time. Alternatively, you can use <application>kickstart</application> to configure network authentication during the installation process. See <xref linkend="ch-kickstart2" /> for more details on kickstart installations, and the <ulink url="https://docs.fedoraproject.org/en-US/Fedora/19/html-single/Release_Notes/index.html#idm263759505216">Fedora 19 Release Notes</ulink> for information about this limitation. 
+		</para>
+	</important>
 	<para condition="install-guide">
 		Enter a user name and your full name, and then enter your chosen password. Type your password once more in the <guilabel>Confirm Password</guilabel> box to ensure that it is correct. <!-- FIXME Refer to <xref linkend="sn-account_configuration" /> for guidelines on selecting a secure password. -->
 	</para>
 	<para condition="install-guide">
-		Check the <guilabel>Make this user administrator</guilabel> box if you would like administrative privileges. This will place you in the wheel group, which gives you access to all administrative functions, including installing and updating software, creating and altering configuration files, and administering other users.
+		Check the <guilabel>Make this user administrator</guilabel> box if you would like administrative privileges. This will place you in the <systemitem class="groupname">wheel</systemitem> group, which gives you access to all administrative functions, including installing and updating software, creating and altering configuration files, and administering other users.
 	</para>
 	<!-- <para condition="install-guide">
 		To configure Fedora to use network services for authentication of user information, click <guibutton>Use Network Login</guibutton>. Refer to <xref linkend="sn-firstboot-authentication"/> for further details.