diff -ru src/etc/mtree/BSD.include.dist /mnt/usr/src/etc/mtree/BSD.include.dist
--- src/etc/mtree/BSD.include.dist	2012-08-13 23:53:12.000000000 +0000
+++ /mnt/usr/src/etc/mtree/BSD.include.dist	2012-09-25 05:43:44.000000000 +0000
@@ -331,6 +331,8 @@
     ..
     vm
     ..
+    x86
+    ..
     xlocale
     ..
 ..