Docker missing layer IDs in output : <p>I just did a fresh install of Docker on Ubuntu using the official guidelines: <a href="https://docs.docker.com/engine/installation/linux/ubuntulinux/" rel="noreferrer">https://docs.docker.com/engine/installation/linux/ubuntulinux/</a></p>

<p>When I pull an image using "sudo docker pull ubuntu" and then "sudo docker history ubuntu" it returns missing layer IDs in the columns. Using the documentation example ( <a href="https://docs.docker.com/engine/reference/commandline/history/" rel="noreferrer">https://docs.docker.com/engine/reference/commandline/history/</a> ) my output is:</p>

<pre><code>IMAGE CREATED CREATED BY SIZE COMMENT
3e23a5875458 8 days ago /bin/sh -c #(nop) ENV LC_ALL=C.UTF-8 0 B
"missing" 8 days ago /bin/sh -c dpkg-reconfigure locales &amp;&amp; loc 1.245 MB
"missing" 8 days ago /bin/sh -c apt-get update &amp;&amp; apt-get install 338.3 MB
</code></pre>

<p>and so on. Only the base layer ID shows, the rest is "missing". I tried installing on another Ubuntu machine connected to a different network and it has the same problem for any image that I download.</p>

<p>Does someone know what's causing this or able to help me fix it? I rely on this layer ID since I'm gathering some statistics on the reusability of layers so I need this ID to show correctly.</p>

<p>Thank you</p>
