I suppose w don't need the 020-canary-live.binary hook anymore.

live-build/ubuntu/hooks/020-canary-live.binary

@@ -1,27 +0,0 @@
-#! /bin/sh
-
-set -eux
-
-case ${PASS:-} in
-    standard.live)
-        ;;
-    *)
-        exit 0
-        ;;
-esac
-
-case ${SUBPROJECT:-} in
-    canary)
-        ;;
-    *)
-        echo "We don't run canary hooks for this project."
-        exit 0
-        ;;
-esac
-
-. config/binary
-. config/functions
-
-mv chroot/boot/initrd.img-* ${PWD}/livecd.${PROJECT}.initrd-generic
-mv chroot/boot/vmlinu?-* ${PWD}/livecd.${PROJECT}.kernel-generic
-chmod a+r ${PWD}/livecd.${PROJECT}.initrd-generic ${PWD}/livecd.${PROJECT}.kernel-generic