diff --git a/README.md b/README.md
index 707553e..12e540f 100644
--- a/README.md
+++ b/README.md
@@ -119,6 +119,7 @@ Sync / umount
 ## making a RO overlay root fs => enable it in raspi-config
 This only adds entries to /boot/cmdline.txt and a different overlay kernel to config.txt
 By removing it, we can get to RW system manually.
+-- This breaks the partition resize process. Manual resize and re-enable RO must be triggered at later stage.
 
     [raspi /]# sudo raspi-config nonint do_overlayfs 0