[Bug 1710383] [NEW] Could not install 'gconf2' and upgrade frozen

[Launchpad Bug Tracker]

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When performing a distribution upgrade from Ubuntu 16.04.3 xenial to
17.04, a dialog is generated with the following messages:

Could not install 'gconf2'
The upgrade will continue but the 'gconf2' package may not be in a working state. Please consider submitting a bug report about it.
dependency problems - leaving triggers unprocessed

The dialog has a Close button. Clicking it closes the dialog but it then
reappears again immediately. It is stuck in a loop.

The distribution upgrade dialog continues in the background for a while.
However, it then freeze having last reported "Configuring libpam-systemd
(amd64)" in the "Installing the upgrades" step.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: gnome-software 3.20.5-0ubuntu0.16.04.5
ProcVersionSignature: Ubuntu 4.4.0-91.114-generic 4.4.76
Uname: Linux 4.4.0-91-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CurrentDesktop: GNOME
Date: Sat Aug 12 10:54:28 2017
EcryptfsInUse: Yes
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-software
UpgradeStatus: Upgraded to xenial on 2017-08-12 (0 days ago)

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug third-party-packages xenial
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Could not install 'gconf2' and upgrade frozen
https://bugs.launchpad.net/bugs/1710383
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