Re: [Libguestfs] [PATCH 1/2] v2v: -o rhv-upload: Always fetch server options when opening the connection.

+ j = json.loads(r.read()) + can_flush = "flush" in j['features'] + can_trim = "trim" in j['features'] + can_zero = "zero" in j['features'] + + # Old imageio servers returned either 405 Method Not Allowed or + # 204 No Content (with an empty body). If we see that we leave + # all the features as False and they will be emulated. + elif r.status == 405 or r.status == 204: + pass + + else: + raise RuntimeError("could not use OPTIONS request: %d: %s" % + (r.status, r.reason)) + + debug("imageio features: flush=%r trim=%r zero=%r unix_socket=%r" % + (can_flush, can_trim, can_zero, unix_socket))