attempt to read outside disc hd0 you need to lead kernel first

[Wade Smart]

> I have not rebooted since the reinstall.  Will try that later.
>
> gary

I reinstalled from the latest 16.04.x package.
I rebooted each of those computers without any problem.
I then ran updates, rebooted and did not have any problem.
Def, thanks to cloud backup... easy data recovery.
Reinstalling all your programs... wish it was as easy :D

Wade