[Bug 1898344] [NEW] do_release_upgrade fails from bionic to focal, with "authentication failed"

[tenminjoe@yahoo.com]

Public bug reported:

I want to upgrade from 18.04.1 to 20.04.1

sudo do-release-upgrade
Checking for a new Ubuntu release
Get:1 Upgrade tool signature [1,554 B]                                                                                
Get:2 Upgrade tool [1,342 kB]                                                                                         
Fetched 1,344 kB in 0s (0 B/s)                                                                                        
authenticate 'focal.tar.gz' against 'focal.tar.gz.gpg' 
Authentication failed
Authenticating the upgrade failed. There may be a problem with the network or with the server.

I have tried setting my download source to "Main Servers" (was GB) - no
difference.

I have tried "apt install --reinstall ubuntu-keyring" - no difference.

I had already performed an apt upgrade before I started. I've tried apt
upgrade again - nothing to upgrade.

Thanks for any help with this.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.17
ProcVersionSignature: Ubuntu 4.15.0-118.119-generic 4.15.18
Uname: Linux 4.15.0-118-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.16
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Sat Oct  3 10:59:35 2020
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-11-27 (1405 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2018-11-25 (677 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/1898344

Title:
  do_release_upgrade fails from bionic to focal, with "authentication
  failed"

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

Bug description:
  I want to upgrade from 18.04.1 to 20.04.1

  sudo do-release-upgrade
  Checking for a new Ubuntu release
  Get:1 Upgrade tool signature [1,554 B]                                                                                
  Get:2 Upgrade tool [1,342 kB]                                                                                         
  Fetched 1,344 kB in 0s (0 B/s)                                                                                        
  authenticate 'focal.tar.gz' against 'focal.tar.gz.gpg' 
  Authentication failed
  Authenticating the upgrade failed. There may be a problem with the network or with the server.

  I have tried setting my download source to "Main Servers" (was GB) -
  no difference.

  I have tried "apt install --reinstall ubuntu-keyring" - no difference.

  I had already performed an apt upgrade before I started. I've tried
  apt upgrade again - nothing to upgrade.

  Thanks for any help with this.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.17
  ProcVersionSignature: Ubuntu 4.15.0-118.119-generic 4.15.18
  Uname: Linux 4.15.0-118-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.9-0ubuntu7.16
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Oct  3 10:59:35 2020
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2016-11-27 (1405 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2018-11-25 (677 days ago)

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