[Bug 1893974] Re: Distro upgrade bug3

[Laszlo Toth]

here you are the output:

apt-cache policy python3-qgis python-gdal grass-core obs-studio
python3-qgis:
  Installed: 3.4.11+dfsg-2~bionic1
  Candidate: 3.4.11+dfsg-2~bionic1
  Version table:
 *** 3.4.11+dfsg-2~bionic1 500
        500 http://ppa.launchpad.net/ubuntugis/ppa/ubuntu bionic/main amd64 Packages
        100 /var/lib/dpkg/status
python-gdal:
  Installed: 2.4.2+dfsg-1~bionic0
  Candidate: 2.4.2+dfsg-1~bionic0
  Version table:
 *** 2.4.2+dfsg-1~bionic0 500
        500 http://ppa.launchpad.net/ubuntugis/ppa/ubuntu bionic/main amd64 Packages
        100 /var/lib/dpkg/status
     2.2.3+dfsg-2 500
        500 http://archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
grass-core:
  Installed: 7.8.0-1~bionic1
  Candidate: 7.8.0-1~bionic1
  Version table:
 *** 7.8.0-1~bionic1 500
        500 http://ppa.launchpad.net/ubuntugis/ppa/ubuntu bionic/main amd64 Packages
        100 /var/lib/dpkg/status
     7.4.0-1 500
        500 http://archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
obs-studio:
  Installed: 25.0.8-0obsproject1~bionic
  Candidate: 25.0.8-0obsproject1~bionic
  Version table:
 *** 25.0.8-0obsproject1~bionic 500
        500 http://ppa.launchpad.net/obsproject/obs-studio/ubuntu bionic/main amd64 Packages
        100 /var/lib/dpkg/status
     21.0.2+dfsg1-1 500
        500 http://archive.ubuntu.com/ubuntu bionic/universe amd64 Packages

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https://bugs.launchpad.net/bugs/1893974

Title:
  Distro upgrade bug3

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

Bug description:
  HI All,
  1. lsb_release -rd
  Description:	Ubuntu 18.04.5 LTS
  Release:	18.04

  2.sudo apt-cache policy pkgname
  [sudo] password for laci: 
  N: Unable to locate package pkgname

  3. I expected a smart distro upgrade to 20.04

  
  4.During the upgrade process (18.04 LTS to 20.04 LTS)

  I got the following error message:

  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.

   This was likely caused by:
   * Unofficial software packages not provided by Ubuntu
  Please use the tool 'ppa-purge' from the ppa-purge 
  package to remove software from a Launchpad PPA and 
  try the upgrade again.

  If none of this applies, then please report this bug using the command
  'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. If you want
  to investigate this yourself the log files in '/var/log/dist-upgrade'
  will contain details about the upgrade. Specifically, look at
  'main.log' and 'apt.log'

  Regarding security the availability is under real threat.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.38
  ProcVersionSignature: Ubuntu 5.4.0-45.49~18.04.2-generic 5.4.55
  Uname: Linux 5.4.0-45-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.17
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Sep  2 18:55:46 2020
  InstallationDate: Installed on 2020-01-28 (218 days ago)
  InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-09-02 (0 days ago)
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update-manager.release-upgrades: 2020-08-27T08:41:43.692313

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