Although the request was for Yakketty, it also has the the bug in Xenial. I did try to manually download arial32.exe and andale32.exe using wget and then copying them to /var/lib/update-notifier/package-data-downloads/partial. Doing so allowed the reconfigure to succeed. sudo apt show apt-transport-https [sudo] password for admin0: Package: apt-transport-https Version: 1.2.19 Priority: standard Section: admin Source: apt Origin: Ubuntu Maintainer: Ubuntu Developers