[Bug 1891503] [NEW] Ubuntu upgrade halted due to unofficial software packages

[Kenneth]

Public bug reported:

I run KDE neon User Edition 5.19 18.04 and have a few PPA's active (OBS,
Chrome, VirtualBox, etc...).

When I try to upgrade to KDE neon 20.04 I am met by the error "Could not
calculate the upgrade" ant the text "An unresolvable problem occurred
while calculating the upgrade. This was likely caused by: * Unofficial
software packages not provided by Ubuntu Please use the tool 'ppa-purge'
from the ppa-purge package to remove software from a Launchpad PPA and
try the upgrade again. If none of this applies, then please report this
bug ..."

As far as I know I do not have any Launchpad PPA's, but I might be
unaware. And ppa-purge did not tell me anything about what package might
be the problem. Neither did the logs in /var/log/dist-upgrade.

I am by far no power user, and this is as long as I can go on my own. I
will probably just reinstall from scratch, but since the error message
asked me to report it, I did. Hope it might help in any way.

ProblemType: Bug
DistroRelease: KDE neon 18.04
Package: ubuntu-release-upgrader-core 1:18.04.38+p18.04+git20200803.1136 [origin: user bionic]
ProcVersionSignature: Ubuntu 5.4.0-42.46~18.04.1-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.16
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: KDE
Date: Thu Aug 13 14:25:34 2020
InstallationDate: Installed on 2020-02-23 (171 days ago)
InstallationMedia: neon user "Bionic" - Build amd64 LIVE Binary 20200220-11:32
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2020-08-13 (0 days ago)
VarLogDistupgradeTermlog:

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


** Tags: amd64 apport-bug bionic dist-upgrade third-party-packages

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https://bugs.launchpad.net/bugs/1891503

Title:
  Ubuntu upgrade halted due to unofficial software packages

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  I run KDE neon User Edition 5.19 18.04 and have a few PPA's active
  (OBS, Chrome, VirtualBox, etc...).

  When I try to upgrade to KDE neon 20.04 I am met by the error "Could
  not calculate the upgrade" ant the text "An unresolvable problem
  occurred while calculating the upgrade. This was likely caused by: *
  Unofficial software packages not provided by Ubuntu Please use the
  tool 'ppa-purge' from the ppa-purge package to remove software from a
  Launchpad PPA and try the upgrade again. If none of this applies, then
  please report this bug ..."

  As far as I know I do not have any Launchpad PPA's, but I might be
  unaware. And ppa-purge did not tell me anything about what package
  might be the problem. Neither did the logs in /var/log/dist-upgrade.

  I am by far no power user, and this is as long as I can go on my own.
  I will probably just reinstall from scratch, but since the error
  message asked me to report it, I did. Hope it might help in any way.

  ProblemType: Bug
  DistroRelease: KDE neon 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.38+p18.04+git20200803.1136 [origin: user bionic]
  ProcVersionSignature: Ubuntu 5.4.0-42.46~18.04.1-generic 5.4.44
  Uname: Linux 5.4.0-42-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.9-0ubuntu7.16
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: KDE
  Date: Thu Aug 13 14:25:34 2020
  InstallationDate: Installed on 2020-02-23 (171 days ago)
  InstallationMedia: neon user "Bionic" - Build amd64 LIVE Binary 20200220-11:32
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-08-13 (0 days ago)
  VarLogDistupgradeTermlog:

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