Ok, early hooks do not have the environment. Just case on canary being the only one using hooks for now.

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

@@ -10,16 +10,7 @@ case $PASS in
         ;;
 esac
 
-. /root/config/chroot
-
-case ${SUBPROJECT:-} in
-    canary)
-        ;;
-    *)
-        echo "We don't run canary hooks for this project."
-        exit 0
-        ;;
-esac
+# TODO: Make sure this is only executed for canary builds
 
 cat <<EOF > /etc/initramfs-tools/conf.d/casperize.conf
 export CASPER_GENERATE_UUID=1