[Bug 1775292] Re: Unattended-upgrades stopped adjusting candidates in 1.1

[Launchpad Bug Tracker]

This bug was fixed in the package unattended-upgrades -
1.1ubuntu1.18.04.1

---------------
unattended-upgrades (1.1ubuntu1.18.04.1) bionic; urgency=medium

  [ Michael Vogt ]
  * unattended-upgrades: fix Unlocked context manager. (LP: #1602536)
    The Unlocked context manager did correctly unlock but did not
    reacquire the lock which means that in minimal-upgrade step
    mode it is possible to run apt code without a lock. If something
    else (like landscape, apt, synaptic, packagekit) locks the cache
    in the meantime this will work and u-u will get dpkg errors
    because dpkg will not be able to perform its operations. It is
    less of an issue in non-minimal mode, but even then the auto-remove
    step may fail in this way.

  [ Balint Reczey ]
  * Fix adjusting candidates (LP: #1775292)
  * Relock apt lock before reopening the cache (LP: #1602536)
  * Fix crashing while adjusting candidates and save candidates to adjust only
    in first sweep run, not emptying the set later
    (Closes: #901258) (LP: #1775307)

 -- Balint Reczey <rbalint at ubuntu.com>  Wed, 06 Jun 2018 16:30:55 -0700

** Changed in: unattended-upgrades (Ubuntu Bionic)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1775292

Title:
  Unattended-upgrades stopped adjusting candidates in 1.1

Status in unattended-upgrades package in Ubuntu:
  Fix Released
Status in unattended-upgrades source package in Bionic:
  Fix Released

Bug description:
  [Impact]

   * Unattended-upgrades may fail to install an update when the highest
  version of a package to be updated exists in an origin u-u is not
  allowed to pull packages from.

  [Test Case]

   * Run sudo apt update && sudo unattended-upgrade --dry-run --verbose --debug
   * Observe no line with "adjusting candidate version: " with buggy u-u version
   * Install fixed u-u version
   * Run sudo unattended-upgrade --dry-run --verbose --debug
   * Observe lines "adjusting candidate version: "

  [Regression Potential]

   * Unattended-upgrade may crash when adjusting candidates preventing
  upgrades to be installed

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