Well, I guess I shamed it by posting here - lo and behold there was a notification indicating that an update was available. I had to manually click the notification to initiate the update. BTW, this is more than 3 hours after I started toying with this process . One change I made was disable the screen timeout - for some reason, the screen timing out was also disabling the update download? Who knows - oh well, I will hopefully not soon forget the magic incantations.