[Bug 1586492] [NEW] update-manager does not update all available packages

[Wolf Rogner]

Public bug reported:

I recently observed that after updating the system using update manager
a significant amount of packages remained pending and not upgraded.

It can be verified on every update that is available:
1. I get informed that updates are available or
   I start update-manager manually
2. I get a list of packages available for update
   I install them or
3. I call sudo apt-get upgrade (with or without previous update)
   => I get a list of packages pending (which in case 2 ..or are different and a superset of what update-manager offers)
4. Manually upgrading works fine, upgrading using update-manager is unreliable

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: update-manager 1:16.04.3
ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
Uname: Linux 4.4.0-22-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia wl
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
Date: Fri May 27 19:54:11 2016
GsettingsChanges:
 b'com.ubuntu.update-manager' b'show-details' b'true'
 b'com.ubuntu.update-manager' b'window-height' b'1028'
 b'com.ubuntu.update-manager' b'first-run' b'false'
 b'com.ubuntu.update-manager' b'window-width' b'1303'
 b'com.ubuntu.update-manager' b'launch-time' b'1464371636'
InstallationDate: Installed on 2013-05-17 (1105 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64+mac (20130424)
PackageArchitecture: all
SourcePackage: update-manager
UpgradeStatus: Upgraded to xenial on 2016-04-22 (34 days ago)

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug third-party-packages xenial

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https://bugs.launchpad.net/bugs/1586492

Title:
  update-manager does not update all available packages

Status in update-manager package in Ubuntu:
  New

Bug description:
  I recently observed that after updating the system using update
  manager a significant amount of packages remained pending and not
  upgraded.

  It can be verified on every update that is available:
  1. I get informed that updates are available or
     I start update-manager manually
  2. I get a list of packages available for update
     I install them or
  3. I call sudo apt-get upgrade (with or without previous update)
     => I get a list of packages pending (which in case 2 ..or are different and a superset of what update-manager offers)
  4. Manually upgrading works fine, upgrading using update-manager is unreliable

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: update-manager 1:16.04.3
  ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia wl
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri May 27 19:54:11 2016
  GsettingsChanges:
   b'com.ubuntu.update-manager' b'show-details' b'true'
   b'com.ubuntu.update-manager' b'window-height' b'1028'
   b'com.ubuntu.update-manager' b'first-run' b'false'
   b'com.ubuntu.update-manager' b'window-width' b'1303'
   b'com.ubuntu.update-manager' b'launch-time' b'1464371636'
  InstallationDate: Installed on 2013-05-17 (1105 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64+mac (20130424)
  PackageArchitecture: all
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to xenial on 2016-04-22 (34 days ago)

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