You have been subscribed to a public bug: After installing 16.04 server and selecting the option "no automatic upgrades" the system will still be configured to automatically perform security upgrades.
$ cat /etc/apt/apt.conf.d/20auto-upgrades APT::Periodic::Update-Package-Lists "1"; APT::Periodic::Unattended-Upgrade "1"; $ head -n 8 /etc/apt/apt.conf.d/50unattended-upgrades // 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"; }; ** Affects: unattended-upgrades (Ubuntu) Importance: High Assignee: Mathieu Trudel-Lapierre (cyphermox) Status: New ** Tags: server-next -- Automatic security upgrades are always enabled https://bugs.launchpad.net/bugs/1585771 You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unattended-upgrades in Ubuntu. -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp