Moving removal of udev persistent rules from chroot_hacks to a hook, that way it can be easily skipped if desired.

functions/defaults.sh

@@ -588,7 +588,8 @@ Set_defaults ()
 				update-apt-xapian-index \
 				update-mlocate-database \
 				remove-openssh-server-host-keys \
-				remove-python-py}"
+				remove-python-py \
+				remove-udev-persistent-rules}"
 			;;
 
 		kubuntu)
@@ -597,7 +598,8 @@ Set_defaults ()
 				update-mlocate-database \
 				remove-gnome-icon-cache \
 				remove-openssh-server-host-keys \
-				remove-python-py}"
+				remove-python-py \
+				remove-udev-persistent-rules}"
 			;;
 	esac
 

scripts/build/lb_chroot_hacks

@@ -140,9 +140,6 @@ do
 	esac
 done
 
-# Removing udev mac caching rule
-rm -f chroot/etc/udev/rules.d/*persistent-net.rules
-
 case "${LB_BINARY_IMAGES}" in
 	net)
 		if [ ! -f chroot/usr/bin/smbmount ]

share/hooks/005-remove-udev-persistent-rules.chroot

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+set -e
+
+# Remove udev persistent rules.
+#
+# This removes udev persistent rules that cache the host systems mac address to
+# remember its device name.
+
+rm -f /etc/udev/rules.d/*persistent-net.rules