[Bug 1902785] Re: Cannot upgrade from 18.04 to 20.04 with no error reported

[Brian Murray]

Looking at your /etc/apt/sources.list file you only have the main
repository of Ubuntu enabled but you have packages installed from the
universe repository. If you enable the universe repository the upgrade
may then become calculatable.

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

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https://bugs.launchpad.net/bugs/1902785

Title:
  Cannot upgrade from 18.04 to 20.04 with no error reported

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

Bug description:
  It shows a message telling that actualization cannot be calculated,
  with an irreslouble problem calculating actualization, but without
  further explain of the problem.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.40
  ProcVersionSignature: Ubuntu 4.15.0-122.124-generic 4.15.18
  Uname: Linux 4.15.0-122-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.17
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Nov  3 21:18:16 2020
  InstallationDate: Installed on 2016-05-03 (1645 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=es_ES.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-11-03 (0 days ago)
  VarLogDistupgradeTermlog:

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