Added some more documentation into the SLES install guide

source/guides/install-guides/zypper/index.rst

@@ -7,5 +7,5 @@ For the list of currently supported SLES operating systems, see :ref:`sles-os-su
    :maxdepth: 2
 
    prepare_mgmt_node
-   install_xcat
-   configure_xcat
+..   install_xcat
+..   configure_xcat

source/guides/install-guides/zypper/prepare_mgmt_node.rst

@@ -0,0 +1,29 @@
+Prepare the Management Node
+===========================
+
+These steps prepare the Management Node or xCAT Installation
+
+Install an OS on the Management Node
+------------------------------------
+
+Install one of the supported operating systems :ref:`sles-os-support-label` on to your target management node
+
+  .. include:: ../common/install_guide.rst
+     :start-after: BEGIN_install_os_mgmt_node
+     :end-before: END_install_os_mgmt_node
+
+Configure the Base OS Repository
+--------------------------------
+
+  .. include:: zypper_common.rst
+     :start-after: BEGIN_configure_base_os_repository
+     :end-before: END_configure_base_os_repository
+
+
+Set up Network
+--------------
+
+The management node IP address should be set to a **static** ip address.  
+
+Modify the ifcfg-<nic> file under ``/etc/sysconfig/network-scripts`` and configure a static IP address.
+

source/guides/install-guides/zypper/zypper_common.rst

@@ -0,0 +1,43 @@
+.. BEGIN_configure_base_os_repository
+
+xCAT uses the zypper package manager on SLES Linux distributions to install and resolve dependency packages provded by the base operating system.  Follow this section to create the repository for the base operating system on the management node
+
+#. Copy the dvd .iso file onto the management node: ::
+
+     mkdir -p /tmp/iso
+     scp <user>@<server>:/images/iso/sles12/ppc64le/SLE-12-Server-DVD-ppc64le-GM-DVD1.iso /tmp/iso
+   
+#. Mount the dvd iso to a directory on the management node.  ::
+
+     #
+     # Assuming we are mounting at /mnt/iso/sles12
+     #
+     mkdir -p /mnt/iso/sles12
+     mount -o loop /tmp/iso/SLE-12-Server-DVD-ppc64le-GM-DVD1.iso /mnt/iso/sles12
+
+#. Create the local repository configuration file pointing to mounted iso image. ::
+
+     cat /etc/zypp/repos.d/sles12le-base.repo
+     [sles-12-le-server]
+     name=SLES 12 ppc64le Server Packages
+     baseurl=file:///mnt/iso/sles12/suse
+     enabled=1
+     gpgcheck=1
+
+
+.. END_configure_base_os_repository
+
+
+
+
+.. BEGIN_disable_firewall
+.. DEPRECATED: Firewall instructions is not applicable after xCAT 2.8
+
+The management node provides many services to the cluster nodes.  Running a firewall on the management node can interfere with these services.  
+If your cluster is running on a secure network, the easiest thing to do is disable the firewall on the management node:: 
+
+   service iptables stop
+   service ip6tables stop
+
+.. END_disable_firewall
+