[Bug 1872565] Re: lubuntu-desktop is preventing upgrade to 20.04

[Brian Murray]

This is actually because you have removed the xscreensaver package from
your system. Please reinstall it and try the upgrade again. From
VarLogDistUpgradeAptterm.log:

  Installing xscreensaver as Depends of lubuntu-desktop
    Ignore MarkInstall of xscreensaver:amd64 < 5.42+dfsg1-1ubuntu1 @ii pgR NPb > as its mode (Delete) is protected

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https://bugs.launchpad.net/bugs/1872565

Title:
  lubuntu-desktop is preventing upgrade to 20.04

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

Bug description:
  update-manager -d run from the shell.

  Upgrading from 19.10, upgrade fails with this error in main.log:

  2020-04-13 16:52:58,939 WARNING Can't mark 'lubuntu-desktop' for upgrade (E:Unable to correct problems, you have held broken packages.)
  2020-04-13 16:56:26,907 ERROR Dist-upgrade failed: 'Broken packages after upgrade: lubuntu-desktop'

  I would expect that lubuntu-desktop would be in a state that would
  allow upgrade to succeed.

  I will retry with lubuntu-desktop removed.

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: ubuntu-release-upgrader-core 1:19.10.15.4
  ProcVersionSignature: Ubuntu 5.3.0-46.38-generic 5.3.18
  Uname: Linux 5.3.0-46-generic x86_64
  ApportVersion: 2.20.11-0ubuntu8.8
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: LXQt
  Date: Tue Apr 14 02:04:54 2020
  InstallationDate: Installed on 2017-11-27 (868 days ago)
  InstallationMedia: Lubuntu 17.10 "Artful Aardvark" - Release amd64 (20171017.1)
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to eoan on 2020-04-13 (0 days ago)
  VarLogDistupgradeTermlog:

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