[Bug 1982791] [NEW] An EoL release cannot dist-upgrade if not all updates are installed and the release has been archived to old-releases

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Łukasz Zemczak (sil2100):

Noticed the automatic updates/upgrades are not coming in anymore. Seems
Impish is EOL. Which is fine, we then run a release upgrade. But that is
refused, since it requires latest versions/nicely upgraded. That is not
possible as all Release Files are no longer available. So can not 'apt
update', can not 'apt upgrade' hence can not 'do-release-upgrade'.

>From the error messages, started removing Repositories, but now the
entire installation is broken. Re-install latest is only option. No fun.

lsb_release  -rd
Description:    Ubuntu 21.10
Release:        21.10

apt update
Hit:1 http://ppa.launchpad.net/linuxuprising/apps/ubuntu impish InRelease
Ign:2 http://archive.ubuntu.com/ubuntu impish InRelease  
Ign:3 http://archive.ubuntu.com/ubuntu impish-updates InRelease
Ign:4 http://archive.ubuntu.com/ubuntu impish-security InRelease
Err:5 http://archive.ubuntu.com/ubuntu impish Release
  404  Not Found [IP: 2001:67c:1562::18 80]
Err:6 http://archive.ubuntu.com/ubuntu impish-updates Release
  404  Not Found [IP: 2001:67c:1562::18 80]
Err:7 http://archive.ubuntu.com/ubuntu impish-security Release
  404  Not Found [IP: 2001:67c:1562::18 80]
Reading package lists... Done
E: The repository 'http://archive.ubuntu.com/ubuntu impish Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://archive.ubuntu.com/ubuntu impish-updates Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://archive.ubuntu.com/ubuntu impish-security Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: ubuntu-release-upgrader-core 1:21.10.9 [origin: unknown]
ProcVersionSignature: Ubuntu 5.13.0-52.59-generic 5.13.19
Uname: Linux 5.13.0-52-generic x86_64
ApportVersion: 2.20.11-0ubuntu71.2
Architecture: amd64
CasperMD5CheckResult: unknown
CrashDB: ubuntu
Date: Tue Jul 26 00:49:21 2022
InstallationDate: Installed on 2019-08-06 (1084 days ago)
InstallationMedia: Kubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to impish on 2022-07-25 (0 days ago)

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: High
         Status: Triaged


** Tags: amd64 apport-bug dist-upgrade impish third-party-packages
-- 
An EoL release cannot dist-upgrade if not all updates are installed and the release has been archived to old-releases
https://bugs.launchpad.net/bugs/1982791
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