title: Docker won't start up on ubuntu 16.04.01
body: <p>I am trying to install docker on ubuntu version 16.04.01, it gave an error after install that there were errors with package docker-engine. And when i try to start the docker service via the command docker daemon -D
  I get this log:</p>
  
  <pre><code>DEBU[0000] docker group found. gid: 999
  DEBU[0000] Listener created for HTTP on unix (/var/run/docker.sock)
  INFO[0000] libcontainerd: new containerd process, pid: 6517
  DEBU[0000] libcontainerd: containerd connection state change: TRANSIENT_FAILURE
  WARN[0000] containerd: low RLIMIT_NOFILE changing to max  current=1024 max=65536
  DEBU[0000] containerd: read past events                  count=0
  DEBU[0000] containerd: supervisor running                cpus=2 memory=4096 runtime=docker-runc runtimeArgs=[] stateDir=/var/run/docker/libcontainerd/containerd
  DEBU[0000] containerd: grpc api on /var/run/docker/libcontainerd/docker-containerd.sock
  DEBU[0001] Using default logging driver json-file
  DEBU[0001] Golang's threads limit set to 1855710
  DEBU[0001] [zfs] zfs command is not available: exec: "zfs": executable file not found in $PATH
  ERRO[0001] 'overlay' not found as a supported filesystem on this host. Please ensure kernel is new enough and has overlay support loaded.
  DEBU[0001] Using graph driver vfs
  DEBU[0001] Max Concurrent Downloads: 3
  DEBU[0001] Max Concurrent Uploads: 5
  INFO[0001] Graph migration to content-addressability took 0.00 seconds
  WARN[0001] Your kernel does not support oom control.
  WARN[0001] Your kernel does not support memory swappiness.
  WARN[0001] Your kernel does not support kernel memory limit.
  WARN[0001] Unable to find cpu cgroup in mounts
  WARN[0001] Unable to find cpuset cgroup in mounts
  WARN[0001] mountpoint for pids not found
  DEBU[0001] Cleaning up old mountid : start.
  FATA[0001] Error starting daemon: Devices cgroup isn't mounted
  </code></pre>
  
  <p>I am using a server hosted by another company and this is a preinstalled version of ubuntu, i've tried reinstalling it multiple times and doing it all over again but that didn't work.</p>