external lvremove : t -> string -> unit = "ocaml_guestfs_lvremove"
external vgremove : t -> string -> unit = "ocaml_guestfs_vgremove"
external pvremove : t -> string -> unit = "ocaml_guestfs_pvremove"
+external set_e2label : t -> string -> string -> unit = "ocaml_guestfs_set_e2label"
+external get_e2label : t -> string -> string = "ocaml_guestfs_get_e2label"
+external set_e2uuid : t -> string -> string -> unit = "ocaml_guestfs_set_e2uuid"
+external get_e2uuid : t -> string -> string = "ocaml_guestfs_get_e2uuid"