Index: boot/Makefile.common
===================================================================
--- boot/Makefile.common	(revision af2a76c3fbf1a0a9aee19905c674ce43f4ffc6db)
+++ boot/Makefile.common	(revision 3abf70c73779dc7dc5529512275597a1d116e82d)
@@ -127,9 +127,9 @@
 
 RD_DRVS_ESSENTIAL = \
-	infrastructure/root
+	infrastructure/root \
+	infrastructure/rootvirt \
+	fb/kfb 
 
 RD_DRVS_NON_ESSENTIAL = \
-	infrastructure/rootvirt \
-	fb/kfb \
 	test/test1 \
 	test/test2 \