See below. I have Docker installed, but don't use it on this PC.. but noticed it failed in the daily update.
# systemctl status docker.service ● docker.service - Docker Application Container Engine Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled) Active: failed (Result: exit-code) since Thu 2016-04-21 10:13:19 BST; 2h 9min ago Docs: https://docs.docker.com Process: 25855 ExecStart=/usr/bin/docker daemon -H fd:// $DOCKER_OPTS (code=exited, status=1/FAILURE) Main PID: 25855 (code=exited, status=1/FAILURE) Apr 21 10:13:19 LX-ELS05853 systemd[1]: Starting Docker Application Container Engine... Apr 21 10:13:19 LX-ELS05853 docker[25855]: time="2016-04-21T10:13:19.800166591+01:00" level=fatal msg="Error starting daemon: er Apr 21 10:13:19 LX-ELS05853 systemd[1]: docker.service: Main process exited, code=exited, status=1/FAILURE Apr 21 10:13:19 LX-ELS05853 systemd[1]: Failed to start Docker Application Container Engine. Apr 21 10:13:19 LX-ELS05853 systemd[1]: docker.service: Unit entered failed state. Apr 21 10:13:19 LX-ELS05853 systemd[1]: docker.service: Failed with result 'exit-code'. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1572912 Title: package docker.io 1.10.3-0ubuntu6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/docker.io/+bug/1572912/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs