diff --git a/library/busybox b/library/busybox
new file mode 100644
index 0000000000..b091054451
--- /dev/null
+++ b/library/busybox
@@ -0,0 +1 @@
+latest git://github.com/dotcloud/docker-busybox
\ No newline at end of file
diff --git a/library/ubuntu b/library/ubuntu
index 046c8db319..7a4c77d99f 100644
--- a/library/ubuntu
+++ b/library/ubuntu
@@ -1,5 +1,7 @@
 latest	git://github.com/dotcloud/ubuntu-quantal
 quantal	git://github.com/dotcloud/ubuntu-quantal
 12.10	git://github.com/dotcloud/ubuntu-quantal
-precise	git://github.com/dotcloud/ubuntu-precise
-12.04	git://github.com/dotcloud/ubuntu-precise
+precise	git://github.com/dotcloud/ubuntu-quantal	B:precise
+12.04	git://github.com/dotcloud/ubuntu-quantal	B:precise
+raring	git://github.com/dotcloud/ubuntu-quantal	B:raring
+13.04	git://github.com/dotcloud/ubuntu-quantal	B:raring