diff -Nru casper-1.432/debian/changelog casper-1.433/debian/changelog
--- casper-1.432/debian/changelog	2019-11-13 02:07:08.000000000 +0000
+++ casper-1.433/debian/changelog	2019-12-04 13:50:05.000000000 +0000
@@ -1,3 +1,10 @@
+casper (1.433) focal; urgency=medium
+
+  * Support preseed/url= key in addition to url= key in preseed script.
+  * Ensure we do not treat netboot url=*.iso as a preseed.
+
+ -- Dimitri John Ledkov <xnox@ubuntu.com>  Wed, 04 Dec 2019 13:50:05 +0000
+
 casper (1.432) focal; urgency=medium
 
   * scripts/casper-helpers: pass --no-reread to sfdisk when creating the
diff -Nru casper-1.432/scripts/casper-bottom/24preseed casper-1.433/scripts/casper-bottom/24preseed
--- casper-1.432/scripts/casper-bottom/24preseed	2018-11-30 01:32:47.000000000 +0000
+++ casper-1.433/scripts/casper-bottom/24preseed	2019-12-04 13:50:05.000000000 +0000
@@ -66,7 +66,10 @@
 		file=*)
 			locations="${x#file=} $locations"
 			;;
-		url=*)
+		url=*.iso)
+			# not a pressed, but a net-mount
+			;;
+		preseed/url=*|url=*)
 			url_location="${x#url=}"
 			start_network
 			chroot /root wget -P /tmp "$url_location"