diff --git a/debian/changelog b/debian/changelog
index 20af71b4..198275bf 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -5,8 +5,12 @@ livecd-rootfs (2.442) UNRELEASED; urgency=medium
     comparison prior to aa-series (LP: #1681548)
   * live-build/ubuntu-cpc/hooks/999-extras.binary: Exit on first failure
 
-  [Balint Reczey]
+  [ Balint Reczey ]
   * sync before calling kpartx to let writing to loop devices finish
+  * Sort and list dependencies nicely
+  * Require PROJECT environment to be set for lb build
+  * Allow overwriting IMAGEFORMAT even for ubuntu-cpc and ubuntu-server
+  * Optionally use ubuntu-image for building snap based images
 
  -- Steve Langasek <steve.langasek@ubuntu.com>  Thu, 13 Apr 2017 10:38:04 -0700
 
diff --git a/debian/control b/debian/control
index 52e4d3b2..9ecc7dbe 100644
--- a/debian/control
+++ b/debian/control
@@ -8,7 +8,25 @@ Vcs-Bzr: http://bazaar.launchpad.net/~ubuntu-core-dev/livecd-rootfs/trunk
 
 Package: livecd-rootfs
 Architecture: any
-Depends: ${misc:Depends}, debootstrap, rsync, python-minimal | python, procps, squashfs-tools (>= 1:3.3-1), grep-dctrl, lsb-release, lzma, e2fsprogs, germinate (>= 1.25.1), apt-utils, gnupg, live-build (>= 3.0~a57-1ubuntu12~), android-tools-fsutils [armhf], python3-software-properties
+Depends: ${misc:Depends},
+         android-tools-fsutils [armhf],
+         apt-utils,
+         debootstrap,
+         e2fsprogs,
+         germinate (>= 1.25.1),
+         gnupg,
+         grep-dctrl,
+         live-build (>= 3.0~a57-1ubuntu12~),
+         lsb-release,
+         lzma,
+         procps,
+         python-minimal | python,
+         python3-software-properties,
+         rsync,
+         snapd,
+         squashfs-tools (>= 1:3.3-1),
+         sudo,
+         ubuntu-image
 Suggests: partimage
 Breaks: ubuntu-defaults-builder (<< 0.32)
 Description: construction script for the livecd rootfs
diff --git a/live-build/auto/build b/live-build/auto/build
index 103b5005..cfe00bdd 100755
--- a/live-build/auto/build
+++ b/live-build/auto/build
@@ -10,6 +10,17 @@ Arguments "${@}"
 Read_conffiles config/all config/common config/bootstrap config/chroot config/binary config/source
 Set_defaults
 
+if [ -z "${PROJECT:-}" ]; then
+    echo "PROJECT environment variable has to be set" >&2
+    exit 1
+fi
+
+if [ "${IMAGEFORMAT:-}" = "ubuntu-image" ]; then
+	# Use ubuntu-image instead of live-build
+	env SNAPPY_STORE_NO_CDN=1 ubuntu-image -o livecd."$PROJECT".img livecd."$PROJECT".model-assertion
+	exit 0
+fi
+
 # Setup cleanup function
 Setup_cleanup
 
diff --git a/live-build/auto/config b/live-build/auto/config
index 77c33db4..2f8decec 100755
--- a/live-build/auto/config
+++ b/live-build/auto/config
@@ -104,14 +104,16 @@ add_binary_hook ()
 	BINARY_HOOKS="${BINARY_HOOKS:+$BINARY_HOOKS }$1"
 }
 
-case $PROJECT:$SUBPROJECT in
-	ubuntu-cpc:*)
-		IMAGEFORMAT=ext4
-		;;
-	ubuntu-server:live)
-		IMAGEFORMAT=plain
-		;;
-esac
+if [ -z "${IMAGEFORMAT:-}" ]; then
+	case $PROJECT:$SUBPROJECT in
+		ubuntu-cpc:*)
+			IMAGEFORMAT=ext4
+			;;
+		ubuntu-server:live)
+			IMAGEFORMAT=plain
+			;;
+	esac
+fi
 
 case $IMAGEFORMAT in
 	ext2|ext3|ext4)
@@ -145,6 +147,35 @@ case $IMAGEFORMAT in
 		esac
 		;;
 
+	ubuntu-image)
+		case "$ARCH+${SUBARCH:-}" in
+			amd64+*)
+				MODEL=pc-amd64 ;;
+			i386+*)
+				MODEL=pc-i386 ;;
+			arm64+snapdragon)
+				MODEL=dragonboard ;;
+			armhf+raspi2)
+				MODEL=pi2 ;;
+			armhf+raspi3)
+				MODEL=pi3 ;;
+			*)
+				echo "Model $ARCH+${SUBARCH:-} unknown to livecd-rootfs" >&2
+				exit 1
+				;;
+		esac
+		echo "IMAGEFORMAT=$IMAGEFORMAT" >> config/common
+		# Store model assertion in top dir to get it picked up later as a build artifact
+		env SNAPPY_STORE_NO_CDN=1 snap known --remote model series=16 model="$MODEL" brand-id=canonical > livecd."$PROJECT".model-assertion
+		echo "Configured ubuntu-image for the following model assertion:"
+		cat livecd."$PROJECT".model-assertion
+		echo "----------------------------------------------------------"
+		# Fake finished configuration for lb build
+		mkdir -p .build
+		touch .build/config
+		exit 0
+		;;
+
 	*)
 		case $PROJECT in
 			ubuntu-server|ubuntu-touch|ubuntu-touch-custom)