My apt
has become broken recently for a 17.04 install.
E: The repository 'http://mirrors.digitalocean.com/ubuntu zesty-updates Release' does not have a Release file.
I didn't change anything and also tried re-making /etc/apt/sources.list
standard Ubuntu repos and got the same error.
E: The repository 'http://01.archive.ubuntu.com/ubuntu zesty Release' does not have a Release file.
Shouldn't zesty be listed here? http://01.archive.ubuntu.com/ubuntu/dists/
What should I do?