[Bug 1888549] Re: cannot upgrade to focal fossa from xubuntu

[Brian Murray]

*** This bug is a duplicate of bug 1813354 ***
    https://bugs.launchpad.net/bugs/1813354

** This bug has been marked a duplicate of bug 1813354
   release-upgrader unable to deal with sources.list entries of "deb mirror://"

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https://bugs.launchpad.net/bugs/1888549

Title:
  cannot upgrade to focal fossa from xubuntu

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

Bug description:
  Updating repository information

  Third party sources disabled

  Some third party entries in your sources.list were disabled. You can 
  re-enable them after the upgrade with the 'software-properties' tool 
  or your package manager. 

  To continue please press [ENTER]

  Hit http://archive.canonical.com/ubuntu focal InRelease                                                                                              
  Hit http://security.ubuntu.com/ubuntu focal-security InRelease                                                                                       
  Fetched 0 B in 0s (0 B/s)                                                                                                                            

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

  Invalid package information

  After updating your package information, the essential package 
  'ubuntu-minimal' could not be located. This may be because you have 
  no official mirrors listed in your software sources, or because of 
  excessive load on the mirror you are using. See /etc/apt/sources.list 
  for the current list of configured software sources. 
  In the case of an overloaded mirror, you may want to try the upgrade 
  again later. 

  
  Restoring original system state

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.37
  ProcVersionSignature: Ubuntu 4.15.0-112.113-generic 4.15.18
  Uname: Linux 4.15.0-112-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.15
  Architecture: amd64
  CrashDB: ubuntu
  Date: Wed Jul 22 16:53:54 2020
  InstallationDate: Installed on 2019-09-15 (311 days ago)
  InstallationMedia: Xubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_CA:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-07-22 (0 days ago)
  VarLogDistupgradeAptlog:
   Log time: 2020-07-22 16:51:29.462907
   Log time: 2020-07-22 16:51:33.802688
   Log time: 2020-07-22 16:53:53.510561
   Log time: 2020-07-22 16:53:57.607062

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