I have been having problems trying to install ubuntu-desktop on my VPS Ubuntu server 16.04
This is what I did:
sudo apt-get update sudo apt-get upgrade sudo apt-get install ubuntu-desktop
Then, I added a password to the root account. I read that I had to do that to access the Ubuntu desktop. I did this:
sudo passwd root sudo passwd -u root
When I restart the Ubuntu server, I get the field to enter the password only. the option for username does not appear. I get this, but it says that the password I entered is incorrect. But it is correct.