set up a new workstation in my living room dinning table. I am getting frustrated with Mint-Cinnamon So I loaded Ubuntu but I did not there shell so Installed Cinnamon on top of it.
And that just was never meant to be. So after a few months, I to try Debian 9.1 with Cinnamon (distro).
After two installs, its installer and Live-CD are both junk.
I put up Sonar as my screen-saver which over night, locked up. Now mind you I had NFS4 working like a charm
So I had to power down the system ie "10 seconds on the power switch" which did a number on my drive.
After internal fsck cleared the drive and I was logged back in both of my sudo, and showmount would not work and gave lots of fun errors. So after beating myself up, and going up blind alleys. I reloaded Debian, one more time. and ran the update. Still the same problem. I felt stupid, like a dog chasing his tail.
So I dug in and looked some more, and more. So I reloaded nfs-common, after purging the old one. and still the problem remained. This was my error:
Failed to start nfs-idmapd.service: Unit nfs-server.service not found."
I now seemed to be getting somewhere, I did not have nfs-server installed just the client package nfs-common so I tried to reload nfs-common, but then I got an error:
"Failed to restart nfs-common.service: Unit nfs-common.service is masked"
Duh, apparently during the updates it Masked the service (file) Permissions!, Permissions!
So I ran sudo systemctl unmask nfs-common. It now works like it should, That was 3 days down the drain. Good lesson.
PS: texadactyl thank you for the mention.