I installed ubuntu server 18.04.1 and when I run sudo apt update I get the following error message:
... bionic Release 404 Not Found [IP: 10.251.36.205 80]
I can't perform a apt update. I am stuck. Please help.
The repository 'http://archive.ubuntu.com/ubuntu bionic Release' no longer has a Release file.Updating from such a repository can't be done securely...