Distro upgrade bug3

[Laszlo Toth]

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

[Marc Deslauriers (mdeslaur)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.

[Manfred Hampl (m-hampl)]

Your logs show that you have packages from foreign sources or PPAs installed, and they block the upgrade.

What is the output of the command
apt-cache policy python3-qgis python-gdal grass-core obs-studio

[Laszlo Toth (laszlo.a.toth)]

OK, thanks.

What are the mentioned PPAs & packages, applications? Which log file
contains the list?

Is it necessary to get rid of them?

What is the solution? Please provide a step-by-step description. Thanks.
Regards
L.

Manfred Hampl <email address hidden> ezt írta (időpont: 2020. szept.
23., Sze, 22:35):

> Your logs show that you have packages from foreign sources or PPAs
> installed, and they block the upgrade.
>
> What is the output of the command
> apt-cache policy python3-qgis python-gdal grass-core obs-studio
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> 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
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1893974/+subscriptions
>

--
Tóth László
mobile: [phone]
Skype: toth.a.laszlo1

[Laszlo Toth (laszlo.a.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

[Manfred Hampl (m-hampl)]

Not a bug, but caused by local settings. Converting into a question.