[Bug 1983362] Re: can't upgrade ubuntu from 20lts to 22lts

[Sergey]

Thank you for your idea and help. It's worked! And now I have Ubuntu 22
LTS.

But I used `app remove` (instead ppa-purge) and change audio from
pipewire to pulseaudio from some pages:

* https://askubuntu.com/questions/1407885/how-to-uninstall-pipewire-and-go-back-to-pulseaudio
* https://trendoceans.com/enable-pipewire-and-disable-pulseaudio-in-ubuntu/.


```bash

sudo apt remove pipewire
systemctl --user unmask pulseaudio
systemctl --user --now enable pulseaudio.service pulseaudio.socket
sudo apt autoremove 
sudo apt remove gstreamer1.0-pipewire libpipewire-0.3-{0,dev,modules} libspa-0.2-{bluetooth,dev,jack,modules} pipewire{,-{audio-client-libraries,pulse,media-session,bin,locales,tests}}

```

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https://bugs.launchpad.net/bugs/1983362

Title:
  can't upgrade ubuntu from 20lts to 22lts

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

Bug description:
  sudo do-release-upgrade

  
  Could not calculate 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'.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-release-upgrader-core 1:20.04.38
  ProcVersionSignature: Ubuntu 5.4.0-122.138-generic 5.4.192
  Uname: Linux 5.4.0-122-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.24
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Aug  2 15:19:58 2022
  InstallationDate: Installed on 2020-03-03 (881 days ago)
  InstallationMedia: Ubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64 (20200203.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2022-08-02 (0 days ago)
  mtime.conffile..etc.update-manager.release-upgrades: 2022-07-31T03:58:08.410396

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