[Bug 1890944] Re: try upgrade lubuntu 18.04LTS to 20.04

[Chris Guiver]

Thank you for taking the time to report this issue and helping to make
Ubuntu better.

I didn't look at why your upgrade failed, but please note that Lubuntu
18.04 LTS was the last Lubuntu that used LXDE. Upgrades of Lubuntu 18.04
LTS systems should be via re-installs due to the desktop change.

If you refer to the release notes (https://lubuntu.me/focal-1-released/)
you'll find the following

"Note, due to the extensive changes required for the shift in desktop
environments, the Lubuntu team does not support upgrading from 18.04 or
below to any greater release. Doing so will result in a broken system.
If you are on 18.04 or below and would like to upgrade, please do a
fresh install."

This is a informational comment only.

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https://bugs.launchpad.net/bugs/1890944

Title:
  try upgrade lubuntu 18.04LTS to 20.04

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

Bug description:
  in /ver/log seen problems with python-minimal and other packages to remove and upgrade, though no real error flagged. "sudo do-release-upgrade" stops after several succsessful reads and status checks with "Es konnte nicht ermittelt werden, welche Systemaktualisierungen verfügbar sind"
  No further reason stated. 
  Description:	Ubuntu 18.04.5 LTS
  Release:	18.04

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.38
  ProcVersionSignature: Ubuntu 4.15.0-112.113-lowlatency 4.15.18
  Uname: Linux 4.15.0-112-lowlatency x86_64
  ApportVersion: 2.20.9-0ubuntu7.16
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: LXDE
  Date: Sun Aug  9 12:44:52 2020
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-08-09 (0 days ago)
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update-manager.release-upgrades: 2020-08-09T12:08:13.822995

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