[Bug 1970292] Re: ubuntu failed upgrade from 21.10 to 22.04

[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/1970292

Title:
  ubuntu failed upgrade from 21.10 to 22.04

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

Bug description:
  sudo do-release-upgrade -d
  Checking for a new Ubuntu release

  = Welcome to the Ubuntu 'Jammy Jellyfish' development release =

  ''This release is still in development.''

  Thanks for your interest in this development release of Ubuntu.
  The Ubuntu developers are moving very quickly to bring you the
  absolute latest and greatest software the Open Source Community has to
  offer. This development release brings you a taste of the newest features
  for the next version of Ubuntu.

  == Testing ==

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    http://www.ubuntu.com/testing

  
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  Continue [yN] y
  Get:1 Upgrade tool signature [819 B]                                           
  Get:2 Upgrade tool [1,261 kB]                                                  
  Ign Upgrade tool                                                               
  Ign Upgrade tool                                                               
  Ign Upgrade tool                                                               
  Err Upgrade tool                                                               
    Connection timed out [IP: 91.189.91.38 80]                                   
  Fetched 819 B in 6s (0 B/s)                                                    
  authenticate 'jammy.tar.gz' against 'jammy.tar.gz.gpg' 
  Authentication failed
  Authenticating the upgrade failed. There may be a problem with the network or with the server.

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