Confirmed in 16.04 LTS and Yakkety Daily. How to reproduce: User Ubuntu Server ISO and at the very last question of the installer, answer "no automatic updates."
Then, after the reboot, check /etc/apt/apt.conf.d/50unattended-upgrades and you will find: // Automatically upgrade packages from these (origin:archive) pairs Unattended-Upgrade::Allowed-Origins { "${distro_id}:${distro_codename}-security"; // "${distro_id}:${distro_codename}-updates"; // "${distro_id}:${distro_codename}-proposed"; // "${distro_id}:${distro_codename}-backports"; }; Since by default the first one is enabled, it will install automatic updates despite having selected "no" during installer. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1591400 Title: Unattended-upgrade on by default despite selecting no in setup To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1591400/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs