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This process = used to work after a fresh install and prior to the update of all the applications.

Now - based on information from the /var/log/syslog - it appears there is an issue with "authentication" for the restart process.

Jun 14 18:20:54 ubuntu gnome-session[2364]: WARNING: Unable to restart system: Authorization is required
Jun 16 08:24:34 ubuntu gnome-session[2151]: WARNING: Unable to restart system: Authorization is required

I did install mdadm - not sure if this is contributing to the situation.

As of now - have to issue the sudo shutdown 0 -r command - to get the system to reboot.

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