The reason the ubuntu-minimal package is not found is because you have disabled the release pocket for main and restricted. Your /etc/apt/source.list file contains the following:
5 # deb http://it-mirrors.evowise.com/ubuntu/ xenial main restricted 6 # deb-src http://it-mirrors.evowise.com/ubuntu/ xenial main restricted If you were to uncomment those lines ubuntu-minimal will be found but your upgrade may fail for other reasons. ** Changed in: ubuntu-release-upgrader (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1784098 Title: crashes telling me that I have several repository mirrors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1784098/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs