[Bug 1909360] [NEW] Unable to upgrade from Ubuntu 18.04 to 20.04

[Rafael Costa Amizes]

Public bug reported:

1. An unresolvable problem occurred while calculating the upgrade.

There are two erros on main.log file:

- ERROR NvidiaDetection returned a error: invalid literal for int() with
base 10: 'server'

- ERROR Dist-upgrade failed: 'E:Unable to correct problems, you have
held broken packages.'

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.41
ProcVersionSignature: Ubuntu 4.15.0-128.131-generic 4.15.18
Uname: Linux 4.15.0-128-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.21
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Sat Dec 26 14:21:20 2020
InstallationDate: Installed on 2019-01-03 (723 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2020-12-26 (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/1909360

Title:
  Unable to upgrade from Ubuntu 18.04 to 20.04

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

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

  There are two erros on main.log file:

  - ERROR NvidiaDetection returned a error: invalid literal for int()
  with base 10: 'server'

  - ERROR Dist-upgrade failed: 'E:Unable to correct problems, you have
  held broken packages.'

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.41
  ProcVersionSignature: Ubuntu 4.15.0-128.131-generic 4.15.18
  Uname: Linux 4.15.0-128-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.21
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Dec 26 14:21:20 2020
  InstallationDate: Installed on 2019-01-03 (723 days ago)
  InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-12-26 (0 days ago)
  VarLogDistupgradeTermlog:

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