[Bug 1670291] Re: Landscape: Upgrade 14.04.5 to 16.04.2 fails unable to reboot

[Dimitri John Ledkov]

@kat-amsterdam

The fixes we are introducing are for upgrades to 18.04, which by default
is not possible from 14.04.

Upgrade from 14.04 to 16.04 (trusty to xenial) has already been fixed a
while back in landscape client, thus if one uses uptodate client,
upgrades should succeed and reboot without any issues.

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https://bugs.launchpad.net/bugs/1670291

Title:
  Landscape: Upgrade 14.04.5 to 16.04.2 fails unable to reboot

Status in landscape-client package in Ubuntu:
  Fix Released
Status in systemd package in Ubuntu:
  Fix Released
Status in landscape-client source package in Trusty:
  Fix Released
Status in systemd source package in Trusty:
  New
Status in landscape-client source package in Xenial:
  Fix Released
Status in systemd source package in Xenial:
  Fix Released
Status in landscape-client source package in Bionic:
  Fix Released
Status in systemd source package in Bionic:
  Fix Committed
Status in landscape-client source package in Cosmic:
  Fix Released
Status in systemd source package in Cosmic:
  Fix Released

Bug description:
  https://github.com/systemd/systemd/pull/10061

  [Impact]

   * When logind is not available, shutdown command fails to schedule a
  shutdown, and despite its intentions to immediately shutdown, does not
  do so.

  [Test Case]

    sudo systemctl mask systemd-logind.service
    sudo systemctl stop systemd-logind.service
    shutdown +1

  The expectation is that system goes to shutdown.

  It is buggy if the system remains up - i.e. command returns to shell
  with exit code 1.

  [Regression Potential]

   * It is a corner case to run against systemd-shim logind / or logind
  not otherwise available. The function still performs a clean-shutdown,
  and should not cause loss of work.

  [Other Info]
   
   * Original bug report, running against systemd-shim/systemd-service post trusty->xenial upgrade, pre-reboot.

  
  Used Landscape (Paid Canonical Subscription) to upgrade one of my machines.

  Landscape only shows "In Progress" for more than 8 hours now and asked
  for a reboot of the machine in a second alert.

  In the reboot attempt I get the message:
  =========================
  Failed to set wall message, ignoring: Method "SetWallMessage" with signature "sb" on interface "org.freedesktop.login1.Manager" doesn't exist
  Failed to call ScheduleShutdown in logind, proceeding with immediate shutdown: Method "ScheduleShutdown" with signature "st" on interface "org.freedesktop.login1.Manager" doesn't exist
  =========================

  Steps to reproduce:
  * Fully updated 14.04.5 machine
  * Open Landscape
  * Choose the machine
  * Choose Packages
  * This computer can be upgraded to a newer release
  * Apply
  * Wait 2 hours
  * Alert comes in a seperate Landscape message Machine is ready for reboot
  * Choose Info... Power
  * Deliver to selected computers as soon as possible
  * Error message

  I found this thread on reddit about this issue maybe the solution can be built into the upgrade script
  https://www.reddit.com/r/linuxquestions/comments/4wy3go/trying_to_run_as_user_instance_but_the_system_has/

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