[Bug 1956225] Re: system ubuntu 20 not upgrade

[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/1956225

Title:
  system ubuntu 20 not upgrade

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

Bug description:
  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 1:18.04.45
  ProcVersionSignature: Ubuntu 5.4.0-91.102~18.04.1-generic 5.4.151
  Uname: Linux 5.4.0-91-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.27
  Architecture: amd64
  CrashDB: ubuntu
  Date: Mon Jan  3 18:40:32 2022
  InstallationDate: Installed on 2018-01-28 (1435 days ago)
  InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_IN:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_IN
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2022-01-03 (0 days ago)
  VarLogDistupgradeAptlog:
   Log time: 2022-01-03 18:36:51.597084
   Log time: 2022-01-03 18:37:15.832469
   Log time: 2022-01-03 18:40:26.937831
   Log time: 2022-01-03 18:40:45.014803

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