Disable checksum generation (LP: #1799773)

debian/changelog

@@ -1,3 +1,9 @@
+livecd-rootfs (2.408.38ubuntu1) xenial; urgency=medium
+
+  * Disable checksum generation (LP: #1799773)
+
+ -- Robert C Jennings <robert.jennings@canonical.com>  Wed, 24 Oct 2018 14:19:39 -0500
+
 livecd-rootfs (2.408.38) xenial; urgency=medium
 
   * ubuntu-cpc: Handle a pre-existing /lib/modules in 030-root-tarball.hook

live-build/auto/config

@@ -682,6 +682,7 @@ lb config noauto \
 	--initsystem none \
 	--bootloader "$BOOTLOADER" \
 	--initramfs-compression lzma \
+	--checksums none \
 	--cache false \
 	${BOOTAPPEND_LIVE:+--bootappend-live "$BOOTAPPEND_LIVE"} \
 	$OPTS \