Comment 3 for bug 1544270

Additional out put from terminal
Setting up lightdm (1.17.5-0ubuntu2) ...
insserv: Service dbus has to be enabled to start service lightdm
insserv: exiting now!
update-rc.d: error: insserv rejected the script header
dpkg: error processing package lightdm (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of ubuntu-mate-core:
 ubuntu-mate-core depends on lightdm; however:
  Package lightdm is not configured yet.

dpkg: error processing package ubuntu-mate-core (--configure):No apport report written because the error message indicates its a followup error from a previous failure.

 dependency problems - leaving unconfigured
Errors were encountered while processing:
 lightdm
 ubuntu-mate-core
E: Sub-process /usr/bin/dpkg returned an error code (1)