diff --git a/howto/new-machine-cymru.md b/howto/new-machine-cymru.md
index 7be4e3d7d0d39b0cda6ded9ec3ed3312e0a8de6c..76a477d31587cb194368820e95ffc8965877d88b 100644
--- a/howto/new-machine-cymru.md
+++ b/howto/new-machine-cymru.md
@@ -206,6 +206,11 @@ above). If not, try this:
 
     wget https://download.grml.org/grml64-full_2020.06.iso
 
+PRO TIP: you can mount an ISO image *through* the virtual image by
+presenting it as a CD/DVD driver. Then the Java virtual console will
+notice it and that will save you from copying this file into the
+virtual machine.
+
 First, get a virtual console going (above). Then, you need to navigate
 the menus: