[Bug 1932013] Re: do-release-upgrade failure

[Ubuntu Foundations Team Bug Bot]

** Tags added: xenial2bionic

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https://bugs.launchpad.net/bugs/1932013

Title:
  do-release-upgrade failure

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

Bug description:
  
  $ lsb_release -rd
  Description:	Ubuntu 16.04.7 LTS
  Release:	16.04

  $ do-release-upgrade

  finishes with this:

  Checking package manager
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done

  Calculating the changes

  Calculating the changes

  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'. 

  Restoring original system state

  Aborting
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done
  === Command detached from window (Tue Jun 15 13:44:11 2021) ===

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.32
  ProcVersionSignature: Ubuntu 4.4.0-210.242-generic 4.4.262
  Uname: Linux 4.4.0-210-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.30
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: MATE
  Date: Tue Jun 15 13:40:21 2021
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2021-06-15 (0 days ago)

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