diff --git a/cloudstackops/xenserver.py b/cloudstackops/xenserver.py
index e2d419b..494798c 100644
--- a/cloudstackops/xenserver.py
+++ b/cloudstackops/xenserver.py
@@ -113,7 +113,7 @@ def get_poolmaster(self, host):
     def get_patch_level(self, host):
         try:
             with settings(host_string=self.ssh_user + "@" + host.ipaddress):
-                return fab.run("for p in $(xe patch-list | grep XS | awk {'print $4'} | tr -d \" \" |\
+                return fab.run("for p in $(xe patch-list | grep XS.*E | awk {'print $4'} | tr -d \" \" |\
                 sort | tr '\n' ' '); do echo -n $p \"(\"; xe patch-list name-label=$p params=hosts |\
                 awk -F: {'print $2'} | tr -cd , | awk {'print $1 \",\"'} | tr -d '\n' | wc -c | tr -d '\n'; echo -n \") \"; done")
         except:
@@ -220,7 +220,10 @@ def pool_ha_enable(self, host):
         print "Note: Enabling HA"
         try:
             with settings(host_string=self.ssh_user + "@" + host.ipaddress):
-                return fab.run("xe pool-ha-enable heartbeat-sr-uuids=$(xe sr-list type=nfs params=uuid --minimal) ha-config:timeout=180 ha-config:ha-host-failures-to-tolerate=1")
+                if fab.run("cat /etc/redhat-release | awk '{ $3 = substr($3,1,3); print $3 }'") == "6.2":
+                    return fab.run("xe pool-ha-enable heartbeat-sr-uuids=$(xe sr-list type=nfs params=uuid --minimal) ha-config:timeout=180 ha-config:ha-host-failures-to-tolerate=1")
+                else:
+                    return fab.run("xe pool-ha-enable heartbeat-sr-uuids=$(xe sr-list type=nfs params=uuid --minimal) ha-config:timeout=180; xe pool-param-set uuid=$(xe pool-list params=uuid --minimal) ha-host-failures-to-tolerate=1")
         except:
             return False