Public bug reported:
Multiple attempts to upgrade to xenial on my laptop. I have a few 3rd
party software but it's supposed to disable those. Each time the same
error occurs.
lsb_release -rd
Description: Ubuntu 14.04.5 LTS
Release: 14.04
Running from the gui prompt and update-manager -d
Error:
Could not calculate the upgrade
An unresolvable problem occurred while calculating the upgrade.
This can be caused by:
* Upgrading to a pre-release version of Ubuntu
* Running the current pre-release version of Ubuntu
* Unofficial software packages not provided by Ubuntu
If none of this applies, then please report this bug using the command
'ubuntu-bug ubuntu-release-upgrader-core' in a terminal.
This happens at in the Distribution Upgrade program, second step of "setting
new software channels", during the "calculating the changes" stage.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-release-upgrader-core 1:0.220.8
ProcVersionSignature: Ubuntu 3.13.0-95.142-generic 3.13.11-ckt39
Uname: Linux 3.13.0-95-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
CrashDB: ubuntu
Date: Fri Sep 9 21:40:44 2016
InstallationDate: Installed on 2014-12-14 (636 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
PackageArchitecture: all
ProcEnviron:
LANGUAGE=en_US
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to trusty on 2016-09-10 (0 days ago)
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug dist-upgrade trusty
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https://bugs.launchpad.net/bugs/1622076
Title:
Trying to upgrade from 14 to xenial, keeps crashing due to "3rd
party"?
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