[Bug 1843874] Re: software updater doesn't update all packages

[Julian Andres Klode]

This is by design.  https://wiki.ubuntu.com/PhasedUpdates

** Changed in: update-manager (Ubuntu)
       Status: New => Invalid

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Title:
  software updater doesn't update all packages

Status in update-manager package in Ubuntu:
  Invalid

Bug description:
  
  i powered on the machine & anacron ran update-manager as usual.  it showed a number of updates were available & and i let it install these.  at the end i got the usual "software is up to date" window.

  i then opened an X window & ran:

  sudo apt update && sudo apt upgrade

  i got this:

  .....
  Reading state information... Done
  5 packages can be upgraded. Run 'apt list --upgradable' to see them.
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Calculating upgrade... Done
  The following packages will be upgraded:
    apt apt-transport-https apt-utils libapt-inst2.0 libapt-pkg5.0
  5 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.
  Need to get 2,270 kB of archives.
  After this operation, 44.0 kB of additional disk space will be used.
  Do you want to continue? [Y/n] n

  i declined these updates & ran update manager again manually, but i
  STILL claimed that all the software was up to date.

  i ran apt again manually (ie from the X window) and it produced the
  same result.  this time i told it to upgrade the packages & it did
  indeed do this (ie there genuinely were updates available).

  i've noticed this before.  it seems to occur quite frequently.  this
  occurrence was happening at around 08:25 UTC this morning 13/09/2019
  (ie 13th september, as this is the UK).

  i hope this is enough info.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: update-manager 1:18.04.11.10
  ProcVersionSignature: Ubuntu 4.15.0-62.69-generic 4.15.18
  Uname: Linux 4.15.0-62-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CurrentDesktop: GNOME-Flashback:GNOME
  Date: Fri Sep 13 09:41:42 2019
  ExecutablePath: /usr/bin/update-manager
  InstallationDate: Installed on 2013-11-26 (2116 days ago)
  InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
  InterpreterPath: /usr/bin/python3.6
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_GB:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  Python3Details: /usr/bin/python3.6, Python 3.6.8, python3-minimal, 3.6.7-1~18.04
  PythonDetails: /usr/bin/python2.7, Python 2.7.15+, python-minimal, 2.7.15~rc1-1
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to bionic on 2018-10-03 (344 days ago)

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