Handle Unknown OSes

Mark them as unsupported but allow the user to upload and register
them.

image_creator/os_type/unknown.py

+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2011-2014 GRNET S.A.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+"""This module hosts code to handle unknown OSes."""
+
+from image_creator.os_type.unsupported import Unsupported
+
+
+class Unknown(Unsupported):
+    """OS class for Unknown OSes"""
+    def __init__(self, image, **kwargs):
+        super(Unsupported, self).__init__(image, **kwargs)
+
+        self.image.set_unsupported("Unknown Operating System")
+
+# vim: set sta sts=4 shiftwidth=4 sw=4 et ai :