[Bug 1917202] Re: Reported as bug when i tried to upgrade from ubuntu 18 to 20

[Brian Murray]

Reviewing the log file, /var/log/dist-upgrade/main.log, from your
upgrade attempt there was a failure to communicate with the mirror of
the Ubuntu archive which you use. This could either be due to an issue
with your connection to the mirror or with the mirror itself.
Regardless, this is an issue you'll need to sort out by fixing your
network connection or switching to a different mirror of the Ubuntu
archive before the upgrade can complete. If after resolving the
communication error with the mirror you are still unable to upgrade to a
new release of Ubuntu please open a new bug report so we'll have fresh
log files. Thanks and good luck!

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Incomplete

** Tags added: connection-refused

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https://bugs.launchpad.net/bugs/1917202

Title:
  Reported as bug when i tried to upgrade from ubuntu 18 to 20

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

Bug description:
  The error i got while updating from ubuntu 18 to 20:

  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.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.42
  ProcVersionSignature: Ubuntu 4.15.0-136.140-generic 4.15.18
  Uname: Linux 4.15.0-136-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.23
  Architecture: amd64
  CrashDB: ubuntu
  Date: Sun Feb 28 11:30:34 2021
  InstallationDate: Installed on 2016-11-29 (1551 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2021-02-28 (0 days ago)
  VarLogDistupgradeAptlog:
   Log time: 2021-02-28 11:29:49.234282
   Log time: 2021-02-28 11:29:58.934022
   Log time: 2021-02-28 11:30:29.621571
   Log time: 2021-02-28 11:30:37.957626

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