diff --git a/README.md b/README.md
index ecd8aba..f5bf90a 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,12 @@ If you are instead running a legacy BIOS machine ensure these conditions are met
 - The `83` Linux partition is mountable, in practical terms this usually only means it has a file system.
 - No ZFS zpool exists
 
+Neither with a UEFI nor legacy BIOS system are any of these conditions a requirement from ZFSBootMenu. We're just setting requirements to easily identify if you intend to do a UEFI or a legacy BIOS install. Subsequently the script has no logic to detect UEFI or legacy BIOS mode, that's legwork left to the reader :) The Internet seems to agree that a good quick check is to see if your Arch Linux live CD ISO image has directory `/sys/firmware/efi`.
+```
+[ -d /sys/firmware/efi ] && echo 'Likely a UEFI system' || echo 'Probably a legacy BIOS system'
+```
+If you're unsure nothing's stopping you from just giving it a go with a best guess and if that fails you know you guessed wrong.
+
 ## How to prep
 
 ### UEFI