Index: release/arm/RPI-B.conf
===================================================================
--- release/arm/RPI-B.conf
+++ release/arm/RPI-B.conf
@@ -13,6 +13,7 @@
 KERNEL="RPI-B"
 MD_ARGS="-x 63 -y 255"
 NODOC=1
+OVERLAYS="mmc.dtbo"
 PART_SCHEME="MBR"
 
 arm_install_uboot() {
@@ -33,6 +34,11 @@
 		chroot ${CHROOTDIR} cp -p ${RPI_FIRMWARE_DIR}/${_UF} \
 			${FATMOUNT}/${_UF}
 	done
+	chroot ${CHROOTDIR} mkdir -p ${FATMOUNT}/overlays
+	for _OL in ${OVERLAYS}; do
+		chroot ${CHROOTDIR} cp -p ${OL_DIR}/${_OL} \
+			${FATMOUNT}/overlays/${_OL}
+	done
 	chroot ${CHROOTDIR} cp ${UBOOT_DIR}/boot.scr ${FATMOUNT}/boot.scr
 	sync
 	umount_loop ${CHROOTDIR}/${FATMOUNT}
Index: release/arm/RPI2.conf
===================================================================
--- release/arm/RPI2.conf
+++ release/arm/RPI2.conf
@@ -13,6 +13,7 @@
 KERNEL="GENERIC"
 MD_ARGS="-x 63 -y 255"
 NODOC=1
+OVERLAYS="mmc.dtbo"
 PART_SCHEME="MBR"
 export BOARDNAME="RPI2"
 
@@ -34,6 +35,11 @@
 		chroot ${CHROOTDIR} cp -p ${RPI_FIRMWARE_DIR}/${_UF} \
 			${FATMOUNT}/${_UF}
 	done
+	chroot ${CHROOTDIR} mkdir -p ${FATMOUNT}/overlays
+	for _OL in ${OVERLAYS}; do
+		chroot ${CHROOTDIR} cp -p ${OL_DIR}/${_OL} \
+			${FATMOUNT}/overlays/${_OL}
+	done
 	chroot ${CHROOTDIR} cp ${UBOOT_DIR}/boot.scr ${FATMOUNT}/boot.scr
 	sync
 	umount_loop ${CHROOTDIR}/${FATMOUNT}