I was finally able to download Ubuntu and get it to run, but I ran into more trouble when it asked me to make a username. I tried to give it a simple one such as “Name”, but I kept getting an error. I tried the two options (something like REGEX and USERNAME_[SYSTEM], but those didn’t help. I then closed Ubuntu. When I reopened it it now just says “root@…:~#” and it’s like a command line. How can I create a username and get back to setting up this operating system? Thank you!
Seems like you are seeking assistance more than a discussion about Ubuntu development.
If you want assistance with Ubuntu, drop by one of our support venues: https://community.ubuntu.com/t/finding-help/712