[Bug 1690980] Re: unattended-upgrades does not block shutdown of system, as it is designed to

[Balint Reczey]

@Ethan Based on profiling real-life scenario (updating unstable with 100+ packages) I believe I was able to make u-u ~10 > times faster that should bring down the time of your test of upgrading xenial with all security updates to below one hour.
Since running only dpkg's part took more than 30  minutes I think this state is good for Artful and for backporting the fixes to older releases.
I've set up a separate PPA for u-u testing if you would like to verify the speedup & other fixes:
https://launchpad.net/~rbalint/+archive/ubuntu/unattended-upgrades

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https://bugs.launchpad.net/bugs/1690980

Title:
  unattended-upgrades does not block shutdown of system, as it is
  designed to

Status in OEM Priority Project:
  Triaged
Status in OEM Priority Project xenial series:
  New
Status in apt package in Ubuntu:
  Fix Released
Status in unattended-upgrades package in Ubuntu:
  Fix Released
Status in apt source package in Xenial:
  Triaged
Status in unattended-upgrades source package in Xenial:
  New
Status in apt source package in Zesty:
  Triaged
Status in unattended-upgrades source package in Zesty:
  New

Bug description:
  Title: No pop-up window to warn users that system should not reboot or
  shutdown while installing security updates

  Summary:
  No pop-up window to warn users that system should not reboot or shutdown while installing security updates

  Steps:
  1. trigger unattended-upgrades
  2. reboot or shutdown system while installing packages

  Expected results: There is a pop-up window to warn users that system
  should not reboot or shutdown

  Actual results: There is no pop-up window to warn users

  Additional information:
  $ apt-cache policy unattended-upgrades
  unattended-upgrades:
    Installed: 0.90
    Candidate: 0.90ubuntu0.5
  $ lsb_release -rd
  Description:    Ubuntu 16.04 LTS

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