diff --git a/live-build/auto/build b/live-build/auto/build
index 677de997..806d040c 100755
--- a/live-build/auto/build
+++ b/live-build/auto/build
@@ -375,7 +375,7 @@ EOF
 		(cd chroot && find usr/share/doc -maxdepth 1 -type d | xargs du -s | sort -nr)
 		echo END docdirs
 
-		/usr/share/livecd-rootfs/minimize-manual chroot
+		${LIVECD_ROOTFS_ROOT}/minimize-manual chroot
 
 		clean_debian_chroot
 	fi
diff --git a/live-build/auto/config b/live-build/auto/config
index 25247be9..a1f6126f 100755
--- a/live-build/auto/config
+++ b/live-build/auto/config
@@ -1,6 +1,8 @@
 #!/bin/bash
 set -e
 
+LIVECD_ROOTFS_ROOT=${LIVECD_ROOTFS_ROOT:-/usr/share/livecd-rootfs}
+
 case $ARCH:$SUBARCH in
 	amd64:|amd64:generic|amd64:intel-iot|\
 	arm64:|arm64:generic|arm64:raspi|arm64:snapdragon|arm64:nvidia|\
@@ -47,12 +49,12 @@ if [ -z "$MIRROR" ]; then
 fi
 
 mkdir -p config
-cp -af /usr/share/livecd-rootfs/live-build/functions config/functions
-cp -af /usr/share/livecd-rootfs/live-build/lb_*_layered config/
-cp -af /usr/share/livecd-rootfs/live-build/snap-seed-parse.py config/snap-seed-parse
-cp -af /usr/share/livecd-rootfs/live-build/snap-seed-missing-providers.py config/snap-seed-missing-providers
-cp -af /usr/share/livecd-rootfs/live-build/expand-task config/expand-task
-cp -af /usr/share/livecd-rootfs/live-build/squashfs-exclude-files config/
+cp -af ${LIVECD_ROOTFS_ROOT}/live-build/functions config/functions
+cp -af ${LIVECD_ROOTFS_ROOT}/live-build/lb_*_layered config/
+cp -af ${LIVECD_ROOTFS_ROOT}/live-build/snap-seed-parse.py config/snap-seed-parse
+cp -af ${LIVECD_ROOTFS_ROOT}/live-build/snap-seed-missing-providers.py config/snap-seed-missing-providers
+cp -af ${LIVECD_ROOTFS_ROOT}/live-build/expand-task config/expand-task
+cp -af ${LIVECD_ROOTFS_ROOT}/live-build/squashfs-exclude-files config/
 
 mkdir -p config/package-lists
 
@@ -816,7 +818,7 @@ do_layered_desktop_image() {
 	DEFAULT_KERNEL="linux-$KERNEL_FLAVOURS"
 
 	if [ "$LOCALE_SUPPORT" != none ]; then
-		/usr/share/livecd-rootfs/checkout-translations-branch \
+		${LIVECD_ROOTFS_ROOT}/checkout-translations-branch \
 			https://git.launchpad.net/subiquity po \
 			config/catalog-translations
 	fi
@@ -1136,7 +1138,7 @@ case $PROJECT in
 				NO_SQUASHFS_PASSES=ubuntu-server-minimal.ubuntu-server.installer.$flavor.netboot
 
 				DEFAULT_KERNEL="$kernel_metapkg"
-				/usr/share/livecd-rootfs/checkout-translations-branch \
+				${LIVECD_ROOTFS_ROOT}/checkout-translations-branch \
 					https://git.launchpad.net/subiquity po config/catalog-translations
 				;;
 			*)
@@ -1154,7 +1156,7 @@ case $PROJECT in
 	    # created in ubuntu-core-installer/hooks/05-prepare-image.binary, which
 	    # subiquity knows how to install.
 	    if [ ${SUBPROJECT} == "desktop" ]; then
-		cp /usr/share/livecd-rootfs/live-build/${PROJECT}/ubuntu-core-desktop-24-amd64.model-assertion config/
+		cp ${LIVECD_ROOTFS_ROOT}/live-build/${PROJECT}/ubuntu-core-desktop-24-amd64.model-assertion config/
 	    fi
 	    OPTS="${OPTS:+$OPTS }--bootstrap-flavour=minimal"
 	    PASSES_TO_LAYERS=true
@@ -1168,7 +1170,7 @@ case $PROJECT in
 	    USE_BRIDGE_KERNEL=false
 	    DEFAULT_KERNEL="snap:pc-kernel"
 
-	    /usr/share/livecd-rootfs/checkout-translations-branch \
+	    ${LIVECD_ROOTFS_ROOT}/checkout-translations-branch \
 		https://git.launchpad.net/subiquity po config/catalog-translations
 	    ;;
 
@@ -1308,7 +1310,7 @@ case $SUBPROJECT in
 		# and a variety of things fail without it.
 		add_package install tzdata
 
-		cp -af /usr/share/livecd-rootfs/live-build/make-lxd-metadata.py config/make-lxd-metadata
+		cp -af ${LIVECD_ROOTFS_ROOT}/live-build/make-lxd-metadata.py config/make-lxd-metadata
 		;;
 esac
 
@@ -1433,6 +1435,7 @@ echo "LB_CHROOT_HOOKS=\"$CHROOT_HOOKS\"" >> config/chroot
 echo "SUBPROJECT=\"${SUBPROJECT:-}\"" >> config/chroot
 echo "LB_DISTRIBUTION=\"$SUITE\"" >> config/chroot
 echo "IMAGEFORMAT=\"$IMAGEFORMAT\"" >> config/chroot
+echo "LIVECD_ROOTFS_ROOT=\"$LIVECD_ROOTFS_ROOT\"" >> config/common
 if [ -n "$PASSES" ]; then
 	echo "PASSES=\"$PASSES\"" >> config/common
 fi
@@ -1566,7 +1569,7 @@ case $PROJECT:${SUBPROJECT:-} in
 		ubuntustudio:*|edubuntu:*|ubuntu-budgie:*|ubuntucinnamon:*|xubuntu:*| \
 	        ubuntukylin:*|ubuntu-mate:*|ubuntu-core-installer:*|lubuntu:*)
 		# Ensure that most things e.g. includes.chroot are copied as is
-		for entry in /usr/share/livecd-rootfs/live-build/${PROJECT}/*; do
+		for entry in ${LIVECD_ROOTFS_ROOT}/live-build/${PROJECT}/*; do
 			case $entry in
 				*hooks*)
 					# But hooks are shared across the projects with symlinks
@@ -1601,11 +1604,11 @@ esac
 case $PROJECT in
 	ubuntu-oem|ubuntustudio|edubuntu|ubuntu-budgie|ubuntucinnamon| \
 	xubuntu|ubuntukylin|ubuntu-mate|lubuntu)
-		cp -af /usr/share/livecd-rootfs/live-build/ubuntu/includes.chroot \
+		cp -af ${LIVECD_ROOTFS_ROOT}/live-build/ubuntu/includes.chroot \
 			config/includes.chroot
 
 		LIVE_LAYER=${LIVE_PREFIX}live
-		cp -af /usr/share/livecd-rootfs/live-build/ubuntu/includes.chroot.minimal.standard.live \
+		cp -af ${LIVECD_ROOTFS_ROOT}/live-build/ubuntu/includes.chroot.minimal.standard.live \
 			config/includes.chroot.$LIVE_LAYER
 
 		if [ $PROJECT != ubuntu-oem ]; then
@@ -1621,7 +1624,7 @@ esac
 
 case $SUBPROJECT in
 	buildd)
-		cp -af /usr/share/livecd-rootfs/live-build/buildd/* config/
+		cp -af ${LIVECD_ROOTFS_ROOT}/live-build/buildd/* config/
 		;;
 esac
 
@@ -1645,7 +1648,7 @@ if [ "$EXTRA_PPAS" ]; then
 			extra_ppa=${extra_ppa%:*}
 			;;
 		esac
-		extra_ppa_fingerprint="$(/usr/share/livecd-rootfs/get-ppa-fingerprint "$extra_ppa")"
+		extra_ppa_fingerprint="$(${LIVECD_ROOTFS_ROOT}/get-ppa-fingerprint "$extra_ppa")"
 
 		cat >> config/archives/extra-ppas.list.chroot <<EOF
 deb https://ppa.launchpadcontent.net/$extra_ppa/ubuntu @DISTRIBUTION@ main
@@ -1735,7 +1738,7 @@ fi
 
 if [ "${MAKE_ISO}" = "yes" ]; then
 	# XXX should pass --build-type here.
-	/usr/share/livecd-rootfs/live-build/gen-iso-ids \
+	${LIVECD_ROOTFS_ROOT}/live-build/gen-iso-ids \
 		--project $PROJECT ${SUBPROJECT:+--subproject $SUBPROJECT} \
 		--arch $ARCH ${SUBARCH:+--subarch $SUBARCH} ${NOW+--serial $NOW} \
 		--output-dir config/iso-ids/
diff --git a/live-build/functions b/live-build/functions
index 279550e4..86e1895f 100644
--- a/live-build/functions
+++ b/live-build/functions
@@ -188,8 +188,8 @@ setup_mountpoint() {
     mount sysfs-live -t sysfs "$mountpoint/sys"
     mount securityfs -t securityfs "$mountpoint/sys/kernel/security"
     # Provide more up to date apparmor features, matching target kernel
-    mount -o bind /usr/share/livecd-rootfs/live-build/apparmor/generic "$mountpoint/sys/kernel/security/apparmor/features/"
-    mount -o bind /usr/share/livecd-rootfs/live-build/seccomp/generic.actions_avail "$mountpoint/proc/sys/kernel/seccomp/actions_avail"
+    mount -o bind ${LIVECD_ROOTFS_ROOT}/live-build/apparmor/generic "$mountpoint/sys/kernel/security/apparmor/features/"
+    mount -o bind ${LIVECD_ROOTFS_ROOT}/live-build/seccomp/generic.actions_avail "$mountpoint/proc/sys/kernel/seccomp/actions_avail"
     # cgroup2 mount for LP: 1944004
     mount -t cgroup2 none "$mountpoint/sys/fs/cgroup"
     mount -t tmpfs none "$mountpoint/tmp"
@@ -860,7 +860,7 @@ snap_validate_seed() {
     fi
     if [ ${boot_filename} != undefined ]; then  # we have a known boot file so we can proceed with checking for features to mount
         kern_major_min=$(readlink --canonicalize --no-newline ${CHROOT_ROOT}/boot/${boot_filename} | grep  --extended-regexp --only-matching --max-count 1 '[0-9]+\.[0-9]+')
-        if [ -d /usr/share/livecd-rootfs/live-build/apparmor/${kern_major_min} ]; then
+        if [ -d ${LIVECD_ROOTFS_ROOT}/live-build/apparmor/${kern_major_min} ]; then
             # if an Ubuntu version has different kernel apparmor features between LTS and HWE kernels
             # a snap pre-seeding issue can occur, where the incorrect apparmor features are reported
             # basic copy of a directory structure overriding the "generic" feature set
@@ -868,7 +868,7 @@ snap_validate_seed() {
 
             # Bind kernel apparmor directory to feature directory for snap preseeding
             umount "${CHROOT_ROOT}/sys/kernel/security/apparmor/features/"
-            mount --bind /usr/share/livecd-rootfs/live-build/apparmor/${kern_major_min} "${CHROOT_ROOT}/sys/kernel/security/apparmor/features/"
+            mount --bind ${LIVECD_ROOTFS_ROOT}/live-build/apparmor/${kern_major_min} "${CHROOT_ROOT}/sys/kernel/security/apparmor/features/"
         fi
     fi
 
@@ -894,7 +894,7 @@ snap_validate_seed() {
     # mount generic apparmor feature again (cleanup)
     if [ -d /build/config/hooks.d/extra/apparmor/${kern_major_min} ]; then
         umount "${CHROOT_ROOT}/sys/kernel/security/apparmor/features/"
-        mount -o bind /usr/share/livecd-rootfs/live-build/apparmor/generic "${CHROOT_ROOT}/sys/kernel/security/apparmor/features/"
+        mount -o bind ${LIVECD_ROOTFS_ROOT}/live-build/apparmor/generic "${CHROOT_ROOT}/sys/kernel/security/apparmor/features/"
     fi
 
 }
@@ -1254,7 +1254,7 @@ setup_cidata() {
     local mountpoint=$(mktemp -d)
     mkfs.vfat -F 32 -n CIDATA ${cidata_dev}
     mount ${cidata_dev} ${mountpoint}
-    cp /usr/share/livecd-rootfs/live-build/cidata/* ${mountpoint}
+    cp ${LIVECD_ROOTFS_ROOT}/live-build/cidata/* ${mountpoint}
     cat >>${mountpoint}/meta-data.sample <<END
 #instance-id: iid-$(openssl rand -hex 8)
 
@@ -1454,5 +1454,5 @@ gpt_root_partition_uuid() {
 # is importable, and uses config/iso-dir as the standard working directory
 # for ISO metadata and intermediate files.
 isobuild () {
-    PYTHONPATH=/usr/share/livecd-rootfs/live-build/ /usr/share/livecd-rootfs/live-build/isobuild --workdir config/iso-dir "$@"
+    PYTHONPATH=${LIVECD_ROOTFS_ROOT}/live-build/ ${LIVECD_ROOTFS_ROOT}/live-build/isobuild --workdir config/iso-dir "$@"
 }
diff --git a/live-build/lb_binary_layered b/live-build/lb_binary_layered
index e6e8d49d..e3e8a746 100755
--- a/live-build/lb_binary_layered
+++ b/live-build/lb_binary_layered
@@ -180,7 +180,7 @@ build_layered_squashfs () {
 			# Operate on the upperdir directly, so that we are only
 			# modifying mtime on files that are actually changed in
 			# this layer. LP: #2107332
-			/usr/share/livecd-rootfs/sync-mtime chroot "$overlay_dir"
+			${LIVECD_ROOTFS_ROOT}/sync-mtime chroot "$overlay_dir"
 		fi
 
 		create_squashfs "${overlay_dir}" ${squashfs_f}
@@ -206,7 +206,7 @@ build_layered_squashfs () {
 			if [ -f config/seeded-languages ]; then
 				usc_opts="$usc_opts --langs $(cat config/seeded-languages)"
 			fi
-			/usr/share/livecd-rootfs/update-source-catalog source $usc_opts
+			${LIVECD_ROOTFS_ROOT}/update-source-catalog source $usc_opts
 		else
 			echo "No catalog entry template for $pass"
 		fi
@@ -227,7 +227,7 @@ done
 
 if [ -n "$DEFAULT_KERNEL" -a -f livecd.${PROJECT_FULL}.install-sources.yaml ]; then
 	write_kernel_yaml "$DEFAULT_KERNEL" "$BRIDGE_KERNEL_REASONS"
-	/usr/share/livecd-rootfs/update-source-catalog merge \
+	${LIVECD_ROOTFS_ROOT}/update-source-catalog merge \
 		--output livecd.${PROJECT_FULL}.install-sources.yaml \
 		--template config/kernel.yaml
 fi
diff --git a/live-build/lb_chroot_layered b/live-build/lb_chroot_layered
index f99f2dca..ce8e5579 100755
--- a/live-build/lb_chroot_layered
+++ b/live-build/lb_chroot_layered
@@ -237,7 +237,7 @@ create_chroot_pass () {
 	lb chroot_interactive ${*}
 
 	# Misc ubuntu cleanup and post-layer configuration
-	/usr/share/livecd-rootfs/minimize-manual chroot
+	${LIVECD_ROOTFS_ROOT}/minimize-manual chroot
 	clean_debian_chroot
 
 	Chroot chroot "dpkg-query -W" > chroot.packages.${pass}
diff --git a/live-build/ubuntu-core-installer/hooks/05-prepare-image.binary b/live-build/ubuntu-core-installer/hooks/05-prepare-image.binary
index 05980c90..b140a979 100755
--- a/live-build/ubuntu-core-installer/hooks/05-prepare-image.binary
+++ b/live-build/ubuntu-core-installer/hooks/05-prepare-image.binary
@@ -11,6 +11,7 @@ case ${PASS:-} in
 esac
 
 . config/binary
+. config/common
 . config/functions
 
 case ${SUBPROJECT} in
@@ -56,4 +57,4 @@ PROJECT_FULL=$PROJECT${SUBARCH:+-$SUBARCH}
 usc_opts="--output livecd.${PROJECT_FULL}.install-sources.yaml \
           --template config/edge.catalog-in.yaml \
           --size 0"
-/usr/share/livecd-rootfs/update-source-catalog source $usc_opts
+${LIVECD_ROOTFS_ROOT}/update-source-catalog source $usc_opts
diff --git a/minimize-manual b/minimize-manual
index eac75e95..fcb490a1 100755
--- a/minimize-manual
+++ b/minimize-manual
@@ -7,10 +7,12 @@
 
 set -e
 
+. config/common
+
 chroot_directory=$1
 
-auto_packages=$(/usr/share/livecd-rootfs/auto-markable-pkgs $chroot_directory)
+auto_packages=$(${LIVECD_ROOTFS_ROOT}/auto-markable-pkgs $chroot_directory)
 if [ -n "$auto_packages" ]; then
 	chroot $chroot_directory apt-mark auto $auto_packages
 fi
-[ -z "$(/usr/share/livecd-rootfs/auto-markable-pkgs $chroot_directory 2> /dev/null)" ]
+[ -z "$(${LIVECD_ROOTFS_ROOT}/auto-markable-pkgs $chroot_directory 2> /dev/null)" ]