[Bug 2009736] [NEW] I am upgrading from 18.04 to 22.04. Upgrade to 20.04 went fine, 22.04 fails

[Pete Cameron]

Public bug reported:

I needed to upgrade an old system from 18.04 to 22.04, I used standard
software updater app.

First upgrade to 20.04 went very smoothly.

Second upgrade has failed repeatedly with the message:

Could not determine the upgrade

An unresolvable problem occurred while calculating the upgrade.

 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'.

After this the upgrade is rolled back.


======================
lsb_release -rd
Description:	Ubuntu 20.04.5 LTS
Release:	20.04
======================

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.40
ProcVersionSignature: Ubuntu 5.4.0-144.161-generic 5.4.229
Uname: Linux 5.4.0-144-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.25
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
Date: Wed Mar  8 17:33:09 2023
InstallationDate: Installed on 2017-02-14 (2213 days ago)
InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to focal on 2023-03-08 (0 days ago)
VarLogDistupgradeTermlog:

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade focal third-party-packages

** Attachment added: "Screenshot from 2023-03-08 18-16-44.png"
   https://bugs.launchpad.net/bugs/2009736/+attachment/5652866/+files/Screenshot%20from%202023-03-08%2018-16-44.png

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https://bugs.launchpad.net/bugs/2009736

Title:
  I am upgrading from 18.04 to 22.04. Upgrade to 20.04 went fine, 22.04
  fails

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

Bug description:
  I needed to upgrade an old system from 18.04 to 22.04, I used standard
  software updater app.

  First upgrade to 20.04 went very smoothly.

  Second upgrade has failed repeatedly with the message:

  Could not determine the upgrade

  An unresolvable problem occurred while calculating the upgrade.

   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'.

  After this the upgrade is rolled back.

  
  ======================
  lsb_release -rd
  Description:	Ubuntu 20.04.5 LTS
  Release:	20.04
  ======================

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-release-upgrader-core 1:20.04.40
  ProcVersionSignature: Ubuntu 5.4.0-144.161-generic 5.4.229
  Uname: Linux 5.4.0-144-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.25
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  Date: Wed Mar  8 17:33:09 2023
  InstallationDate: Installed on 2017-02-14 (2213 days ago)
  InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2023-03-08 (0 days ago)
  VarLogDistupgradeTermlog:

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