Index: boot/Makefile.common
===================================================================
--- boot/Makefile.common	(revision 04051b8e5d2e6bd22c9e8aa7234a2566ab0c944b)
+++ boot/Makefile.common	(revision 826a0a97b8e4e1bf926ddd80f683b9a6c3a158b7)
@@ -52,5 +52,4 @@
 
 MKARRAY = $(TOOLS_PATH)/mkarray.py
-MKTMPFS = $(TOOLS_PATH)/mktmpfs.py
 MKFAT = $(TOOLS_PATH)/mkfat.py
 MKEXT4 = $(TOOLS_PATH)/mkext4.py
Index: boot/Makefile.initrd
===================================================================
--- boot/Makefile.initrd	(revision 04051b8e5d2e6bd22c9e8aa7234a2566ab0c944b)
+++ boot/Makefile.initrd	(revision 826a0a97b8e4e1bf926ddd80f683b9a6c3a158b7)
@@ -29,5 +29,5 @@
 $(INITRD).img:
 ifeq ($(RDFMT),tmpfs)
-	$(MKTMPFS) $(DIST_PATH) $@
+	tar -c -f $@ -C $(DIST_PATH) .
 endif
 ifeq ($(RDFMT),fat)