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

[Balint Reczey]

@Ethan

On Fri, Sep 22, 2017 at 9:29 AM, ethan.hsieh <ethan.hsieh at canonical.com> wrote:
> @Balint
>
> Here is test result for InstallOnShutdown:true
>
> "Errors were encountered while processing: apport"
> u-u still has packages to upgrade after this issue happens.
> So, when I reboot system every time, u-u still tries to upgrade package.
> We expect that there are 30 mins to do the update.
> But, dependency problem will prevent u-u from upgrading packages.
>
> 1. unattended-upgrades-shutdown.log: (Please check full log as attached)
> ----------------
> 2017-09-22 14:54:25,865 WARNING - Running unattended-upgrades in shutdown mode
> 14:54:25~14:55:54 => 1:29, u-u only takes 1:29 to upgrade packges.
> 2017-09-22 14:57:02,183 WARNING - Running unattended-upgrades in shutdown mode
> 14:57:02~14:58:30 => 1:28
> 2017-09-22 15:00:00,233 WARNING - Running unattended-upgrades in shutdown mode
> 15:00:00~15:01:28 => 1:28
> ----------------
>
> 2. unattended-upgrades-dpkg.log:
> ----------------
> Log started: 2017-09-22  14:34:24
> ...
> Preparing to unpack .../apport_2.20.1-0ubuntu2.10_all.deb ...
> Failed to get load state of apport-forward.socket: Connection reset by peer
> 2017-09-22 14:37:26,769 WARNING SIGTERM received, will stop
> Log ended: 2017-09-22  14:37:26
> ----------------

Thanks for the tests and the logs!
It looks like this is an apport issue and u-u can't do much about it.
I think upgrading services _during shutdown_ is something they are
generally not prepared for and to support InstallOnShutdown:true
system-wide packages need to be tested and be prepared with that
scenario in mind.

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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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