[Bug 1925806] Re: upgrade to 20.04 failed

[Nicolas Fourcaud-Trocmé]

*** This bug is a duplicate of bug 1928101 ***
    https://bugs.launchpad.net/bugs/1928101

** This bug has been marked a duplicate of bug 1928101
   sudo do-release-upgrade fails 18.04-20.04

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https://bugs.launchpad.net/bugs/1925806

Title:
  upgrade to 20.04 failed

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

Bug description:
  
  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.44
  ProcVersionSignature: Ubuntu 4.15.0-142.146-generic 4.15.18
  Uname: Linux 4.15.0-142-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.23
  Architecture: amd64
  CrashDB: ubuntu
  Date: Fri Apr 23 15:46:17 2021
  InstallationDate: Installed on 2018-04-16 (1103 days ago)
  InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2021-04-23 (0 days ago)
  modified.conffile..etc.update-manager.release-upgrades: [modified]
  mtime.conffile..etc.update-manager.release-upgrades: 2021-04-23T15:33:18.450724

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