[Bug 1907963] [NEW] Upgrade to U20.04 fails due to unvisible broken python packages

[Jack van Asten]

Public bug reported:

istributor ID:	Ubuntu
Description:	Ubuntu 18.04.5 LTS
Release:	18.04
Codename:	bionic

I need to upgrade to Ubuntu 20.04 LTS;

After do-release-upgrade, is stopped, I get the advice to run ppa-purge, but that does not seem the problem. Checking the apt.log it appears that there are broken packages of python2, that cannot be resolved. And they also did not appear during the 'sudo apt update; sudo apt upgrade' before the release update was tried. I also rebooted the server by the way.
Hope you can help me out, because my nfs4 mounts are very unstable in U18.04, while they perform well again in U20.04.

Thank you very much in advance.
Jack.

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: 2.20.9-0ubuntu7.20
Architecture: amd64
CrashDB: ubuntu
Date: Sun Dec 13 14:25:01 2020
InstallationDate: Installed on 2017-05-08 (1315 days ago)
InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2020-12-13 (0 days ago)

** 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/1907963

Title:
  Upgrade to U20.04 fails due to unvisible broken python packages

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

Bug description:
  istributor ID:	Ubuntu
  Description:	Ubuntu 18.04.5 LTS
  Release:	18.04
  Codename:	bionic

  I need to upgrade to Ubuntu 20.04 LTS;

  After do-release-upgrade, is stopped, I get the advice to run ppa-purge, but that does not seem the problem. Checking the apt.log it appears that there are broken packages of python2, that cannot be resolved. And they also did not appear during the 'sudo apt update; sudo apt upgrade' before the release update was tried. I also rebooted the server by the way.
  Hope you can help me out, because my nfs4 mounts are very unstable in U18.04, while they perform well again in U20.04.

  Thank you very much in advance.
  Jack.

  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: 2.20.9-0ubuntu7.20
  Architecture: amd64
  CrashDB: ubuntu
  Date: Sun Dec 13 14:25:01 2020
  InstallationDate: Installed on 2017-05-08 (1315 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-12-13 (0 days ago)

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