Brand new to the site so unsure if I am posting correctly Having the same problem as reported by Kevin Golding on 2018-08-24 (Bug #1788835)
The message following "apt install krb5-user" is: Package krb5-user is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source The file used is ubuntu-18.04.1-live-server-amd64.iso and was downloaded Thursday 20th September 2018 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1783129 Title: Only "main" component enabled after install To manage notifications about this bug go to: https://bugs.launchpad.net/subiquity/+bug/1783129/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs