Add firmware setup entry

root/etc/grub.d/40_custom

@@ -0,0 +1,11 @@
+#!/bin/sh
+exec tail -n +3 $0
+# This file provides an easy way to add custom menu entries.  Simply type the
+# menu entries you want to add after this comment.  Be careful not to change
+# the 'exec tail' line above.
+
+if [ ${grub_platform} == "efi" ]; then
+	menuentry "Firmware setup" {
+		fwsetup
+	}
+fi