diff --git a/README.md b/README.md
index 1bd4b73..862601c 100644
--- a/README.md
+++ b/README.md
@@ -73,6 +73,25 @@ use using the nodeSelector:
 ....
 ```
 
+### hpa
+
+Ensure the following kernel modules are loaded on the host:
+
+```
+hpsa
+sg
+```
+
+to avoid the
+
+```
+# hpacucli controller all show
+
+Error: No controllers detected.
+```
+
+error.
+
 ## Changelog / Tags
 
 ### Planned