Index: boot/arch/amd64/Makefile.inc
===================================================================
--- boot/arch/amd64/Makefile.inc	(revision 3fac882de32a2062f42b9cca57a8ec1a5c932667)
+++ boot/arch/amd64/Makefile.inc	(revision 6843a9ccc55ea4287771f720d4f1117afbcb5bee)
@@ -35,4 +35,6 @@
 
 RD_DRVS += \
+	audio/sb16 \
+	char/ns8250 \
 	infrastructure/rootpc \
 	bus/pci/pciintel \