@@ -51,7 +51,7 @@ property:

     EnvironmentFile=-/etc/sysconfig/docker

 You can customize the Docker daemon options using override files as explained in the

-[HTTP Proxy example](#http-proxy) below. The files located in `/usr/lib/systemd/system` 

+[HTTP Proxy example](#http-proxy) below. The files located in `/usr/lib/systemd/system`

 or `/lib/systemd/system` contain the default options and should not be edited.

 ### Runtime directory and storage driver

@@ -85,6 +85,17 @@ setting `OPTIONS`:

 You can also set other environment variables in this file, for example, the

 `HTTP_PROXY` environment variables described below.

+To modify the ExecStart configuration, specify an empty configuration followed

+by a new configuration as follows:

+

+    [Service]

+    ExecStart=

+    ExecStart=/usr/bin/docker -d -H fd:// --bip=172.17.42.1/16

+

+If you fail to specify an empty configuration, Docker reports an error such as:

+

+    docker.service has more than one ExecStart= setting, which is only allowed for Type=oneshot services. Refusing.

+

 ### HTTP proxy

 This example overrides the default `docker.service` file.

@@ -127,5 +138,3 @@ to integrate Docker with systemd. For this, simply install the two unit files

 (service and socket) from [the github

 repository](https://github.com/docker/docker/tree/master/contrib/init/systemd)

 to `/etc/systemd/system`.

-

-