Upgrade to 16.04 failed to complete: dependency errors

[Matthias Niess]

After the download, when packages where being installed/upgraded, the process stopped with an error message that systemd-sysv could not be upgraded due to dependency errors and will remain unconfigured.

This error appeared again for dozens of other packages (many systemd, gvfs and Gnome packages).

Before the cleanup-phase the upgrader exited with an error. The install could easily be fixed with:

dpkg --configure -a # to configure unconfigured packages
apt-get dist-upgrade # to complete the upgrade

The only package that was not upgraded was in fact systemd-sysv. Looking through the news on Reddit and HN, other users seem to have the same or at least very similar problems.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-release-upgrader-core 1:16.04.12
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Fri Apr 22 12:01:00 2016
InstallationDate: Installed on 2014-03-11 (772 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64+mac (20140302)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: Upgraded to xenial on 2016-04-21 (0 days ago)
VarLogDistupgradeTermlog:

[Brian Murray (brian-murray)]

VarLogDistUpgradeMainlog.txt indicates that you did not have the fixed version of apt installed when you upgraded.

2016-04-21 18:59:05,182 INFO apt version: '1.0.10.2ubuntu1'

[Matthias Niess (mniess)]

@brian-murray, thanks. Maybe it's solved then.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.