[Bug 1690980] Re: No pop-up window to warn users that system should not reboot or shutdown while installing security updates

[ethan.hsieh]

I added more debug messages and reproduced the issue again.

Here are logs:
lock_file: /var/run/unattended-upgrades.lock

1. xenial (unattended-upgrades-0.90ubuntu0.6):
a. /var/log/unattended-upgrades/unattended-upgrades-shutdown.log
2017-06-22 03:43:09,028 WARNING - get_lock returned...
2017-06-22 03:43:09,040 WARNING - lock not taken

b.
$ ls /var/run/una*
nothing

2. yakkety (unattended-upgrades-0.92ubuntu1.5):
a. /var/log/unattended-upgrades/unattended-upgrades-shutdown.log
2017-06-22 03:35:21,038 WARNING - get_lock returned...
2017-06-22 03:35:21,052 WARNING - log_progress...
2017-06-22 03:35:21,066 WARNING - Unattended-upgrade in progress during shutdown, sleeping for 5s
Progress: 17.1429 % (libreoffice-math)
...
2017-06-22 03:41:30,797 WARNING - Unattended-upgrade in progress during shutdown, sleeping for 5s
Progress: 98.5525 % (initramfs-tools)
2017-06-22 03:41:35,816 WARNING - get_lock returned...
2017-06-22 03:41:35,833 WARNING - lock not taken
2017-06-22 03:41:35,866 INFO - All upgrades installed

b.
$ ls /var/run/una*
/var/run/unattended-upgrades.lock
/var/run/unattended-upgrades.progress
$ sudo lslocks
COMMAND           PID   TYPE SIZE MODE  M      START        END PATH
...
unattended-upgr  3006  POSIX   0B WRITE 0          0          0 /run/unattended-upgrades.lock

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

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

Status in OEM Priority Project:
  Triaged
Status in OEM Priority Project xenial series:
  New
Status in unattended-upgrades package in Ubuntu:
  Incomplete

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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