diff --git a/xCAT-server-2.0/lib/xcat/plugins/AAsn.pm b/xCAT-server-2.0/lib/xcat/plugins/AAsn.pm
new file mode 100644
index 000000000..dc1b911ac
--- /dev/null
+++ b/xCAT-server-2.0/lib/xcat/plugins/AAsn.pm
@@ -0,0 +1,167 @@
+#!/usr/bin/env perl
+# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
+#-------------------------------------------------------
+package xCAT_plugin::AAsn;
+use xCAT::Table;
+
+use xCAT::Utils;
+
+use xCAT::MsgUtils;
+use File::Path;
+use Getopt::Long;
+
+#-------------------------------------------------------
+
+=head1 
+    
+  mounts /install if site->installoc set 
+
+
+#-------------------------------------------------------
+
+=head3  handled_commands 
+
+Check to see if on a Service Node
+Call  mountInstall 
+
+=cut
+
+#-------------------------------------------------------
+
+sub handled_commands
+
+{
+    my $rc = 0;
+
+    if (xCAT::Utils->isServiceNode())
+    {
+        my @nodeinfo   = xCAT::Utils->determinehostname;
+        my $nodename   = pop @nodeinfo;                    # get hostname
+        my @nodeipaddr = @nodeinfo;                        # get ip addresses
+        my $service    = "mountInstall";
+
+        # service needed on this Service Node
+        $rc = &mountInstall($nodename);                    # setup NFS
+        if ($rc == 0)
+        {
+            xCAT::Utils->update_xCATSN($service);
+        }
+    }
+    return $rc;
+}
+
+#-------------------------------------------------------
+
+=head3  process_request 
+
+  Process the command
+
+=cut
+
+#-------------------------------------------------------
+sub process_request
+{
+    return;
+}
+
+#-----------------------------------------------------------------------------
+
+=head3 mountInstall 
+
+    if site->installoc attribute set  
+	  mount the install directory  
+
+=cut
+
+#-----------------------------------------------------------------------------
+sub mountInstall
+{
+    my ($nodename) = @_;
+    my $rc         = 0;
+    my $installdir = "/install";    # default
+    my $installoc  = "/install";    # default
+
+    # read DB for nodeinfo
+    my $master;
+    my $os;
+    my $arch;
+    my $nomount = 0;
+
+    my $retdata = xCAT::Utils->readSNInfo($nodename);
+    if ($retdata->{'arch'})
+    {                               # no error
+        $master = $retdata->{'master'};    # management node
+        $os     = $retdata->{'os'};
+        $arch   = $retdata->{'arch'};
+
+        # read install directory and install location from database,
+        # if they exists
+        my @installocation= xCAT::Utils->get_site_attribute("installoc");
+        my $hostname;
+        my $path;
+        if ($installocation[0])
+        {
+           if (grep /:/, $installocation[0]){ 
+              my ($hostname, $installoc) = split ":",$installocation[0];
+              if ($hostname)
+              {    # hostname set in /installoc attribute
+                  $master = $hostname;    # set name for mount
+              }
+            } else {
+              $installoc=$installocation[0];
+            }
+        }
+        else
+        {    # if no install location then we do not mount
+            $nomount = 1;
+        }
+
+        if ($nomount == 0)
+        {    # mount the install directory
+            my @installdir1 = xCAT::Utils->get_site_attribute("installdir");
+            if ($installdir1[0])
+            {
+                $installdir = $installdir1[0];    # save directory to mount to
+            }
+            if (!(-e $installdir))
+            {
+                mkpath($installdir);
+            }
+
+            # check to see if install  already mounted
+
+            my $mounted = xCAT::Utils->isMounted($installdir);
+            if ($mounted == 0)
+            {                                     # not mounted
+
+                # need to  mount the directory
+                my $cmd= "mount -o rw,nolock $master:$installoc $installdir";
+                system $cmd;
+                if ($? > 0)
+                {                                 # error
+                    $rc = 1;
+                    xCAT::MsgUtils->message("S", "Error $cmd");
+                }
+            }
+        }
+
+    }
+    else
+    {                                             # error reading Db
+        $rc = 1;
+    }
+    if ($rc == 0 && $nomount == 0)
+    {
+
+        # update fstab to mount on reboot
+        $cmd = "grep $master:$installoc $installdir  /etc/fstab  ";
+        xCAT::Utils->runcmd($cmd, -1);
+        if ($::RUNCMD_RC != 0)
+        {
+            `echo "$master:$installoc $installdir nfs timeo=14,intr 1 2" >>/etc/fstab`;
+        }
+    }
+    return $rc;
+}
+
+1;