diff --git a/FLOW.md b/FLOW.md
index 689bd23..7091a02 100644
--- a/FLOW.md
+++ b/FLOW.md
@@ -15,6 +15,20 @@
 - kustomized manifests need to be updated/annotated ("also this
   domain")
 
+## Kubernetes services
+
+### Flux
+
+Get the flux binary, run:
+
+```
+flux check --pre
+```
+
+Fix any problems, then continue.
+
+https://code.ungleich.ch/ungleich-intern/k8s-config
+
 ## Service List
 
 ### DNS servers
diff --git a/rook/README.md b/rook/README.md
index 794c4e8..88e51bf 100644
--- a/rook/README.md
+++ b/rook/README.md
@@ -107,3 +107,15 @@ should be deployed:
 ```
 [21:22] server47.place7:~/ungleich-k8s/rook# kubectl patch storageclass rook-ceph-block -p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}'
 ```
+
+## Deleting in case rook gets stuck
+
+* Need to manually go through the list, the patching of finalizersdoes
+  not work reliable
+
+Especially these:
+
+```
+  finalizers:
+  - cephblockpool.ceph.rook.io
+```