diff --git a/Makefile b/Makefile
index fa7fbc2..83be4c4 100644
--- a/Makefile
+++ b/Makefile
@@ -29,43 +29,7 @@
 	@mkdir -p $(PRODUCT_OUT)/obj
 	@mkdir -p $(ROOTDIR)/cache
 
-all: boot-targets
-
-# We explicitly sequence these since they cannot be properly parallelized. The
-# u-boot and kernel build systems, in particular, do not play well together for
-# various odd reasons (duplicate targets such as depcheck, etc.)
-boot-targets:
-	$(LOG) boot-targets started
-	@echo
-	@echo ==============================================================================
-	@echo ==================== u-boot
-	@echo ==============================================================================
-	@echo
-	+make -f $(ROOTDIR)/build/Makefile u-boot
-	@echo
-	@echo ==============================================================================
-	@echo ==================== boot
-	@echo ==============================================================================
-	@echo
-	+make -f $(ROOTDIR)/build/Makefile boot
-	@echo
-	@echo ==============================================================================
-	@echo ==================== partition-table
-	@echo ==============================================================================
-	@echo
-	+make -f $(ROOTDIR)/build/Makefile partition-table
-	@echo
-	@echo ==============================================================================
-	@echo ==================== rootfs
-	@echo ==============================================================================
-	@echo
-	+make -f $(ROOTDIR)/build/Makefile rootfs
-	@echo
-	@echo ==============================================================================
-	@echo ==================== successful build
-	@echo ==============================================================================
-	@echo
-	$(LOG) boot-targets finished
+all: $(PRODUCT_OUT)/rootfs.img
 
 help: targets
 targets::
diff --git a/boot.mk b/boot.mk
index 9d6467c..6732a06 100644
--- a/boot.mk
+++ b/boot.mk
@@ -20,7 +20,7 @@
 
 boot: $(PRODUCT_OUT)/boot.img
 
-$(PRODUCT_OUT)/boot.img:
+$(PRODUCT_OUT)/boot.img: | out-dirs
 	$(LOG) boot fallocate
 	fallocate -l $(BOOT_SIZE_MB)M $@
 	mkfs.ext2 -F $@