[Bug 1923650] Re: unable to upgrade ubuntu from version 18.04 to 20.04

[Brian Murray]

Thanks for taking the time to report this upgrade failure. There is
currently a new version of the release upgrader available in -proposed
which may resolve the error you've encountered. Please run the following
command to test the new version of the upgrader:

  do-release-upgrade -p

Please lets us know the results in this bug report. Thanks again and
good luck!

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

** Tags added: lp-1928397

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https://bugs.launchpad.net/bugs/1923650

Title:
  unable to upgrade ubuntu from version 18.04 to 20.04

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

Bug description:
  Today my ubuntu offered the possibility to upgrade to version 20.04
  from 18.04, but when it tries to download the new software channels,
  it shows an error message "Unable to calculate update"

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.42
  ProcVersionSignature: Ubuntu 4.15.0-141.145-generic 4.15.18
  Uname: Linux 4.15.0-141-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.23
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Apr 13 23:23:33 2021
  InstallationDate: Installed on 2021-04-13 (0 days ago)
  InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2021-04-13 (0 days ago)
  VarLogDistupgradeTermlog:

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