Although lsb-release indicates you are running zesty, your /etc/apt/sources.list file is composed for entries for xenial (Ubuntu 16.04). This causes the upgrader to fail to calculate the upgrade. Please either change your sources.list file to zesty or downgrade the version of lsb-release to the one in Ubuntu 16.04.
>From VarLogDistupgradeMainLog.txt: 2017-10-29 09:05:53,741 DEBUG examining: 'deb http://us.archive.ubuntu.com/ubuntu/ xenial main restricted universe multiverse' 2017-10-29 09:05:53,742 DEBUG entry '# deb http://us.archive.ubuntu.com/ubuntu/ xenial main restricted universe multiverse' was disabled (unknown dist) 2017-10-29 09:05:53,742 DEBUG examining: 'deb-src http://us.archive.ubuntu.com/ubuntu/ xenial main restricted universe multiverse' ** 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/1728355 Title: An unsolvable problem occurred during the calculation of the feedrate. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1728355/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
