diff --git a/README.md b/README.md
index db51b65..2478f56 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,9 @@ So far, this release has been verified on:
 | Raspberry Pi Compute Module 5 Lite on [DeskPi Super6C](https://wiki.deskpi.com/super6c/) |
 | Raspberry Pi 5b with [RS-P11 for RS-P22 RPi5](https://wiki.52pi.com/index.php?title=EP-0234) |
 
+## What's not working?
+* Booting from USB: USB is only available once LINUX has booted up but not in U-Boot.
+
 ## How to use?
 The releases on this repository align with the corresponding Talos version. There is a raw disk image (initial setup) and an installer image (upgrades) provided.