[Bug 2036340] [NEW] Failure to upgrade Ubuntu 20.04 "could not find a distribution template for Ubuntu/focal"

[David]

Public bug reported:

I tried to upgrade my Ubuntu using the Sofware Update interface app (as
suggested by the app itself).

The app just fails to upgrade and suggests to use the bug-report, the
logs show this error "could not find a distribution template for
Ubuntu/focal" and another one about ubuntu-desktop being corrupted after
the install.

Sorry if this is a bad report, I have no idea what is exactly failing.

Description:	Ubuntu 20.04.6 LTS
Release:	20.04

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.41 [origin: unknown]
ProcVersionSignature: Ubuntu 5.4.0-162.179-generic 5.4.246
Uname: Linux 5.4.0-162-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.27
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Sun Sep 17 09:09:06 2023
InstallationDate: Installed on 2019-09-23 (1454 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to focal on 2023-09-17 (0 days ago)
VarLogDistupgradeTermlog:

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


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

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https://bugs.launchpad.net/bugs/2036340

Title:
  Failure to upgrade Ubuntu 20.04 "could not find a distribution
  template for Ubuntu/focal"

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

Bug description:
  I tried to upgrade my Ubuntu using the Sofware Update interface app
  (as suggested by the app itself).

  The app just fails to upgrade and suggests to use the bug-report, the
  logs show this error "could not find a distribution template for
  Ubuntu/focal" and another one about ubuntu-desktop being corrupted
  after the install.

  Sorry if this is a bad report, I have no idea what is exactly failing.

  Description:	Ubuntu 20.04.6 LTS
  Release:	20.04

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-release-upgrader-core 1:20.04.41 [origin: unknown]
  ProcVersionSignature: Ubuntu 5.4.0-162.179-generic 5.4.246
  Uname: Linux 5.4.0-162-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu27.27
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Sep 17 09:09:06 2023
  InstallationDate: Installed on 2019-09-23 (1454 days ago)
  InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2023-09-17 (0 days ago)
  VarLogDistupgradeTermlog:

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