[Bug 1919068] Re: Upgrade to 20.04 (from 18.04) fails with error "Could not calculate the upgrade"

[Jouni Mettala]

Could you upgrade after removing following packages?

python-dev
python-all-dev
libpython2-dev
python-instant
python2-dev
libpython-all-dev
libboost-python1.65-dev
python-dolfin

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Incomplete

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubuntu-release-upgrader in
Ubuntu.
https://bugs.launchpad.net/bugs/1919068

Title:
  Upgrade to 20.04 (from 18.04) fails with error "Could not calculate
  the upgrade"

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

Bug description:
  An unresolvable problem occurred while calculating the upgrade.

   If none of this applies, then please report this bug using the
  command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. If
  you want to investigate this yourself the log files in '/var/log/dist-
  upgrade' will contain details about the upgrade. Specifically, look at
  'main.log' and 'apt.log'.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.42
  ProcVersionSignature: Ubuntu 4.15.0-136.140-generic 4.15.18
  Uname: Linux 4.15.0-136-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.9-0ubuntu7.23
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity:Unity7:ubuntu
  Date: Sun Mar 14 11:38:14 2021
  InstallationDate: Installed on 2015-03-01 (2205 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2021-03-14 (0 days ago)
  VarLogDistupgradeTermlog:

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1919068/+subscriptions