Index: portbuild
===================================================================
--- portbuild	(revision 246655)
+++ portbuild	(working copy)
@@ -260,7 +260,12 @@
 # set overrides for uname
 buildenv.client ${arch} ${chroot}${CLIENT_SRCBASE}
 
-mount -t devfs foo ${chroot}/dev
+devfspath="null zero random urandom stdin stdout stderr fd fd/*"
+mount -t devfs devfs ${chroot}/dev
+devfs -m ${chroot}/dev rule apply hide
+for p in ${devfspath} ; do
+	devfs -m ${chroot}/dev/ rule apply path "${p}" unhide
+done
 mount -t fdescfs fdesc ${chroot}/dev/fd
 umount -f ${chroot}/compat/linux/proc > /dev/null 2>&1