[Bug 1897682] Re: unable to upgrade to 20.04 from 18.04

[Brian Murray]

*** This bug is a duplicate of bug 1886748 ***
    https://bugs.launchpad.net/bugs/1886748

** This bug has been marked a duplicate of bug 1886748
   upgrade from 18.04 to 20.04 fails to calculate if libomp5 is installed

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https://bugs.launchpad.net/bugs/1897682

Title:
  unable to upgrade to 20.04 from 18.04

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

Bug description:
  Unable to upgrade to 20.04 LTS from 18.04 LTS

  
  Description:	Ubuntu 18.04.5 LTS
  Release:	18.04


  philip at philip-ThinkPad-T520:/var/log/dist-upgrade$ sudo do-release-upgrade
  [sudo] password for philip: 
  Checking for a new Ubuntu release
  Get:1 Upgrade tool signature [1,554 B]                                                
  Get:2 Upgrade tool [1,342 kB]                                                         
  Fetched 1,344 kB in 0s (0 B/s)                                                        
  authenticate 'focal.tar.gz' against 'focal.tar.gz.gpg' 
  extracting 'focal.tar.gz'

  Reading cache

  Checking package manager
  Reading package lists... Done
  Building dependency tree        
  Reading state information... Done
  Hit http://ca.archive.ubuntu.com/ubuntu bionic InRelease                              
  Get:1 http://ca.archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]          
  Get:2 http://ca.archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]        
  Get:3 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]           
  Hit http://archive.canonical.com/ubuntu bionic InRelease                              
  Get:4 http://ca.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [1,089 kB]
  Get:5 http://ca.archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages [748 kB]  
  Fetched 2,089 kB in 0s (0 B/s)                                                        
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done

  Updating repository information
  Hit http://ca.archive.ubuntu.com/ubuntu focal InRelease                               
  Hit http://archive.canonical.com/ubuntu focal InRelease                               
  Get:1 http://ca.archive.ubuntu.com/ubuntu focal-updates InRelease [111 kB]            
  Get:2 http://security.ubuntu.com/ubuntu focal-security InRelease [107 kB]             
  Get:3 http://ca.archive.ubuntu.com/ubuntu focal-backports InRelease [98.3 kB]         
  Fetched 317 kB in 0s (0 B/s)                                                          

  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

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.38
  ProcVersionSignature: Ubuntu 4.15.0-118.119-generic 4.15.18
  Uname: Linux 4.15.0-118-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.17
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Sep 29 00:51:09 2020
  InstallationDate: Installed on 2018-10-13 (717 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-09-29 (0 days ago)

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