[Bug 1907920] Re: An unresolvable problem occurred while calculating the upgrade

[Teunis Peters]

I was using it because of company software that wouldn't work on useful.
But why did no notification of end of life happen on Dec 11 2020?
Why did everything just 404 with no explanation?
Why did I have to keep searching for mirrors until the updater would even process?
Why did the upgrade on December 12 2020 lock up and fail until I'd removed enough python 2.7 components?
And why would a completely unrelated package (camera driver) also block it?
And why did I have to go through a day's worth of websites and bug logs, postings and questions on stackoverflow to finally solve this?

Oh it is solved, but the eoan system updater is broken badly.
Also there is no upgrade path to a corporate LTS, for instance 18.  (but then I can use it in LXC)

I've just had a really frustrating couple of days so I'm a bit upset.
But then there isn't any distribution that properly supports laptops
with touchscreens except this.

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https://bugs.launchpad.net/bugs/1907920

Title:
  An unresolvable problem occurred while calculating the upgrade

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

Bug description:
  This advice is bad.  Because this release just got purged from sites,
  this is no longer possible to do:

  * 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.

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: ubuntu-release-upgrader-core 1:19.10.15.4 [origin: unknown]
  ProcVersionSignature: Ubuntu 5.3.0-64.58-generic 5.3.18
  Uname: Linux 5.3.0-64-generic x86_64
  ApportVersion: 2.20.11-0ubuntu8.9
  Architecture: amd64
  CrashDB: ubuntu
  Date: Sat Dec 12 16:15:41 2020
  InstallationDate: Installed on 2018-03-09 (1009 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_GB:en_US
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to eoan on 2020-12-12 (0 days ago)

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