-# The apt sources files we want,
-# STRETCH_FREE, STRETCH_NONFREE, TESTING_FREE, TESTING_NONFREE,
-# XENIAL_FREE, FLIDAS, BELENOS, STRETCH_LINODE.
+# The apt sources files we want, STRETCH_FREE, STRETCH_NONFREE,
+# BUSTER_FREE, BUSTER_NONFREE, TESTING_FREE, TESTING_NONFREE,
+# XENIAL_FREE, FLIDAS, ETIONA, STRETCH_LINODE.