[Bug 1918293] [NEW] cannot upgrade to 20.04 LTS

[Robert Bronsgeest]

Public bug reported:

We are using
Description:	Ubuntu 18.04.5 LTS
Release:	18.04


This is the text:
Berekenen van de opwaardering is mislukt

Er heeft zich een onoplosbaar probleem voorgedaan bij het berekenen van
de upgrade.

 If none of this applies, then please report this bug using the command
'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. Als u dit zelf
wilt onderzoeken kunt u de logbestanden in ‘/var/log/dist-upgrade’
raadplegen; deze bevatten  details over de upgrade. Kijk vooral naar
‘main.log’ en ‘apt.log’.

translated is says:
Calculation of the upgrade failed

An unsolvable 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, you can consult the log files in "/ var / log
/ dist-upgrade"; these contain details about the upgrade. In particular,
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
ApportVersion: 2.20.9-0ubuntu7.23
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Tue Mar  9 15:01:48 2021
InstallationDate: Installed on 2018-12-20 (809 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2021-03-09 (0 days ago)
VarLogDistupgradeTermlog:

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


** Tags: amd64 apport-bug bionic dist-upgrade

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https://bugs.launchpad.net/bugs/1918293

Title:
  cannot upgrade to 20.04 LTS

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

Bug description:
  We are using
  Description:	Ubuntu 18.04.5 LTS
  Release:	18.04

  
  This is the text:
  Berekenen van de opwaardering is mislukt

  Er heeft zich een onoplosbaar probleem voorgedaan bij het berekenen
  van de upgrade.

   If none of this applies, then please report this bug using the
  command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. Als u
  dit zelf wilt onderzoeken kunt u de logbestanden in ‘/var/log/dist-
  upgrade’ raadplegen; deze bevatten  details over de upgrade. Kijk
  vooral naar ‘main.log’ en ‘apt.log’.

  translated is says:
  Calculation of the upgrade failed

  An unsolvable 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, you can consult the log files
  in "/ var / log / dist-upgrade"; these contain details about the
  upgrade. In particular, 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
  ApportVersion: 2.20.9-0ubuntu7.23
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Mar  9 15:01:48 2021
  InstallationDate: Installed on 2018-12-20 (809 days ago)
  InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2021-03-09 (0 days ago)
  VarLogDistupgradeTermlog:

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