diff --git a/engine/tutorials/dockerimages.md b/engine/tutorials/dockerimages.md
index 0bb29a3fbe..9833b05e03 100644
--- a/engine/tutorials/dockerimages.md
+++ b/engine/tutorials/dockerimages.md
@@ -559,10 +559,39 @@ Delete the `training/sinatra` image as you don't need it anymore.
 > **Note:** To remove an image from the host, please make sure
 > that there are no containers actively based on it.
 
+## Check size of images and containers
+
+An image is
+[stored in layers](../userguide/storagedriver/imagesandcontainers.md),
+shared with other images on the host, so the real disk usage depends on
+how much layer overlap is happening between images on a host.
+
+A container runs on
+[a writable layer](../userguide/storagedriver/imagesandcontainers.md#/container-and-layers)
+on top of a readonly rootfs.
+
+Use `docker history` to see the size of image layers on your host:
+
+    $ docker history centos:centos7
+
+    IMAGE               CREATED             CREATED BY                                      SIZE
+    970633036444        6 weeks ago         /bin/sh -c #(nop) CMD ["/bin/bash"]             0 B
+    <missing>           6 weeks ago         /bin/sh -c #(nop) LABEL name=CentOS Base Imag   0 B
+    <missing>           6 weeks ago         /bin/sh -c #(nop) ADD file:44ef4e10b27d8c464a   196.7 MB
+    <missing>           10 weeks ago        /bin/sh -c #(nop) MAINTAINER https://github.c   0 B
+
+Check the size of containers with `docker ps -s`:
+
+    $ docker ps -s
+
+    CONTAINER ID        IMAGE                                                          COMMAND                  CREATED              STATUS              PORTS                    NAMES               SIZE
+    cb7827c19ef7        docker-docs:is-11160-explain-image-container-size-prediction   "hugo server --port=8"   About a minute ago   Up About a minute   0.0.0.0:8000->8000/tcp   evil_hodgkin        0 B (virtual 949.2 MB)
+
+
 # Next steps
 
 Until now you've seen how to build individual applications inside Docker
 containers. Now learn how to build whole application stacks with Docker
 by networking together multiple Docker containers.
 
-Go to [Network containers](networkingcontainers.md).
\ No newline at end of file
+Go to [Network containers](networkingcontainers.md).
diff --git a/swarm/install-manual.md b/swarm/install-manual.md
index 83f4f79980..ccbaed5b64 100644
--- a/swarm/install-manual.md
+++ b/swarm/install-manual.md
@@ -174,9 +174,9 @@ host as one of the Swarm managers.
 
 2. From the output, copy the `eth0` IP address from `inet addr`.
 
-3. Paste the launch command into the command line:
+3. To set up a discovery backend, use the following command, replacing `<consul0_ip>` with the IP address from the previous command:
 
-        $ docker run -d -p 8500:8500 --name=consul progrium/consul -server -bootstrap
+        $ docker run -d -p 8500:8500 --name=consul progrium/consul -server -bootstrap -advertise=<consul0_ip>
 
 4. Enter `docker ps`.