diff --git a/roles/common/tasks/main.yml b/roles/common/tasks/main.yml
index 55fcef580..948f1dd94 100644
--- a/roles/common/tasks/main.yml
+++ b/roles/common/tasks/main.yml
@@ -2,6 +2,14 @@
 ## Common to all the ceph nodes
 #
 
+- name: Fail on unsupported system
+  fail: msg="System not supported {{ ansible_system }}"
+  when: ansible_system not in ['Linux']
+
+- name: Fail on unsupported architecture
+  fail: msg="Architeture not supported {{ ansible_architectore }}"
+  when: ansible_architecture not in ['x86_64']
+
 - name: Install dependancies
   apt: pkg={{ item }} state=installed update_cache=yes # we update the cache just in case...
   with_items: