+val set_e2label : t -> string -> string -> unit
+(** set the ext2/3/4 filesystem label *)
+
+val get_e2label : t -> string -> string
+(** get the ext2/3/4 filesystem label *)
+
+val set_e2uuid : t -> string -> string -> unit
+(** set the ext2/3/4 filesystem UUID *)
+
+val get_e2uuid : t -> string -> string
+(** get the ext2/3/4 filesystem UUID *)
+