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+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information#
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+   http://www.apache.org/licenses/LICENSE-2.0
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+Custom Hypervisor Installation
+------------------------------
+
+CloudStack allows adapting a new hypervisor plugin that may be developed privately.
+
+The new hypervisor type is internally named Custom to the CloudStack services.
+
+
+The setting ‘hypervisor.custom.display.name’ allows administrators to set the display name of the hypervisor type.
+The display name will be shown in the CloudStack UI and API.
+
+    - In case the ‘hypervisor.list’ setting contains the display name of the new hypervisor type, the setting value is automatically updated after the ‘hypervisor.custom.display.name’ setting is updated.
+
+
+The custom hypervisor type supports:
+
+    - Direct downloads (the ability to download templates into primary storage from the hypervisor hosts without using secondary storage)
+    - Local storage (use hypervisor hosts local storage as primary storage)
+    - Template format: RAW format (the templates to be registered on the new hypervisor type must be in RAW format)
+
+The UI is also extended to display the new hypervisor type and the supported features listed above.