Thank you Stu.
The common passwd root command worked well.
Now I am on to my next problem: I cannot set a static IP4 address. I have used the Preference | Network connections pannels
but the system does not honor my settings. I still have a DHCP assignment. I have posted this issue over on the Atomicpi forum but
I am hoping there are more active users here that might know the magic required. I tried to use the root ID but I get
"mesg: ttyname failed: inappropriate loctl for device".