[Bug 1591400] Re: Unattended-upgrade on by default despite selecting no in setup

[Chris B]

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.

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https://bugs.launchpad.net/bugs/1591400

Title:
  Unattended-upgrade on by default despite selecting no in setup

Status in debian-installer package in Ubuntu:
  New

Bug description:
  I installed Ubuntu Server LTS 16.04 on my server.  At the end, it asks
  the question if it should enable automatic updates. Following options
  are available: yes, major security updates only, no. I chose no.
  However, I found out that despite me choosing no over major security
  updates only, it installed a kernel update last night on its own.

  Is this a bug or is this desired to be like this? It feels a bit like
  Windows if I say no and it updates nevertheless....

  Thanks

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