Description of problem:
On RHEL 7.3, initial-setup-graphical.service hangs during startup, which is somehow unexpected behavior compared to RHEL 7.2, where it throws an error (when there's no X server available). We managed to trigger this issue during an upgrade of one of our systems (by some post-install scriptlet, I guess), which had to be fixed manually. In this case, the initial-setup-graphical.service was in 'activating' state for 54 minutes and the upgrade was stuck.

Version-Release number of selected component (if applicable):
initial-setup-0.3.9.36-1.el7.x86_64
initial-setup-gui-0.3.9.36-1.el7.x86_64

How reproducible:
always

Steps to Reproduce:
# yum -y install initial-setup-gui
# systemctl start initial-setup-graphical.service

Actual results:
# systemctl start initial-setup-graphical.service
<... no output ...>

## From another terminal
# systemctl status initial-setup-graphical.service
● initial-setup-graphical.service - Initial Setup configuration program graphical interface
   Loaded: loaded (/usr/lib/systemd/system/initial-setup-graphical.service; disabled; vendor preset: disabled)
   Active: activating (start) since Fri 2016-11-04 10:51:42 EDT; 28min ago
<...>

Expected results:
## Output from RHEL 7.2
# rpm -qa | grep initial-setup
initial-setup-0.3.9.30-1.el7.x86_64
initial-setup-gui-0.3.9.30-1.el7.x86_64
# systemctl start initial-setup-graphical.service
Job for initial-setup-graphical.service failed because the control process exited with error code. See "systemctl status initial-setup-graphical.service" and "journalctl -xe" for details.
# systemctl status initial-setup-graphical.service
● initial-setup-graphical.service - Initial Setup configuration program
   Loaded: loaded (/usr/lib/systemd/system/initial-setup-graphical.service; disabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Fri 2016-11-04 11:26:49 EDT; 17s ago
<...>