Thanks for your bugreport. Can you please run: $ cat /etc/apt/apt.conf.d/10periodic and $ cat /etc/apt/apt.conf.d/1515adept-periodic-update
also please run: $ ls -l /var/lib/apt/periodic thanks, Michael ** Changed in: update-manager (Ubuntu) Sourcepackagename: unattended-upgrades => update-manager Status: Unconfirmed => Needs Info -- the download in backround but don't install option in update manager isn't functional. https://launchpad.net/bugs/78979 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs