diff --git a/Create-DevTerm-R01-OS-image-from-scratch.md b/Create-DevTerm-R01-OS-image-from-scratch.md
index a21d2b6..3a5e9e9 100644
--- a/Create-DevTerm-R01-OS-image-from-scratch.md
+++ b/Create-DevTerm-R01-OS-image-from-scratch.md
@@ -435,4 +435,7 @@ extlinux.conf.cpi.bak
 ```
 replace extlinux.conf  with extlinux.conf.cpi.bak
 
-the **extlinux.conf.cpi.bak** is for this kind of situation
\ No newline at end of file
+the **extlinux.conf.cpi.bak** is for this kind of situation
+
+# Hints
+https://forum.clockworkpi.com/t/r01-os-early-hints/8636  
\ No newline at end of file