[Bug 1820888] Re: unattended-upgrades may hold back upgrades due to comparing package versions by their string representation

[Launchpad Bug Tracker]

This bug was fixed in the package unattended-upgrades - 1.10ubuntu2

---------------
unattended-upgrades (1.10ubuntu2) disco; urgency=medium

  * Compare apt.package.Version objects and not the versions' string
    representation. (LP: #1820888)
    This prevented adjusting candidates when the strings sorted differently.
    Also extend tests to catch issue.
  * Fall back to adjusting more packages' candidates
    when a package from an allowed origin can't be marked to install/upgrade.
    (LP: #1821101)
  * Skip sending email when no package had to be installed, upgraded or removed
    (LP: #1821103) (Closes: #924554)

 -- Balint Reczey <rbalint at ubuntu.com>  Fri, 22 Mar 2019 20:42:08 +0100

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

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https://bugs.launchpad.net/bugs/1820888

Title:
  unattended-upgrades may hold back upgrades due to comparing package
  versions by their string representation

Status in unattended-upgrades package in Ubuntu:
  Fix Released

Bug description:
  This is part of the reason why the autopkgtes installing all security updates is failing for cosmic with 1.10ubuntu1:
  https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-disco/disco/amd64/u/unattended-upgrades/20190318_182031_fe4fe@/log.gz
  ...
  Checking: libnss-systemd ([<Origin component:'main' archive:'cosmic-updates' origin:'Ubuntu' label:'Ubuntu' site:'archive.ubuntu.com' isTrusted:True>])
  pkg libsystemd0 not in allowed origin
  sanity check failed
  ...

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