[Bug 1986435] Re: Upgrade from Ubuntu 20.04.2 LTS fails

[Chris Guiver]

Thank you for taking the time to report this bug and helping to make
Ubuntu better.

You should apply all upgrades to your system before trying to release-
upgrade to the next release (you're using a long unsupported kernel from
20.04.2; HWE kernel stack is now 5.15)

Your issue is the http://ubuntu.mirrors.tds.net/pub/ubuntu/ which does
not support jammy/22.04.  I suggest switching to the main archive and
try again.  You could also switch to a supported mirror from
https://launchpad.net/ubuntu/+archivemirrors

Bug reporting is mostly about finding & fixing problems thus preventing
future users from hitting the same bug.

I suspect a Support site would be more appropriate, eg.
https://answers.launchpad.net/ubuntu. You can also find help with your
problem in the support forum of your local Ubuntu community
http://loco.ubuntu.com/ or asking at https://askubuntu.com or
https://ubuntuforums.org, or for more support options please look at
https://discourse.ubuntu.com/t/community-support/709


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

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https://bugs.launchpad.net/bugs/1986435

Title:
  Upgrade from Ubuntu 20.04.2 LTS fails

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

Bug description:
  No valid mirror found

  While scanning your repository information no mirror entry for the 
  upgrade was found. This can happen if you run an internal mirror or 
  if the mirror information is out of date. 

  Do you want to rewrite your 'sources.list' file anyway? If you choose 
  'Yes' here it will update all 'focal' to 'jammy' entries. 
  If you select 'No' the upgrade will cancel. 

  Continue [yN] y

  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]

  0% [Connecting to ppa.launchpad.net]                                                                                                                          0% [Connecting to ppa.launchpad.net]                                                                                                                          0% [Connecting to ppa.launchpad.net]                                                                      Hit http://dl.google.com/linux/chrome/deb stable InRelease                                                                                                                                                        
  Get:1 https://download.docker.com/linux/ubuntu jammy InRelease [48,9 kB]                                                                                                                                          
  Get:2 https://download.docker.com/linux/ubuntu jammy/stable amd64 Packages [6255 B]                                                                                                                               
  Get:3 http://ppa.launchpad.net/gns3/ppa/ubuntu jammy InRelease [17,5 kB]                                                                                                                                          
  Get:4 http://ppa.launchpad.net/gns3/ppa/ubuntu jammy/main amd64 Packages [1796 B]                                                                                                                                 
  Get:5 http://ppa.launchpad.net/gns3/ppa/ubuntu jammy/main Translation-en [996 B]                                                                                                                                  
  Fetched 75,4 kB in 6s (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

  Aborting
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done
  hsa at hsa-Legion-5:~$ ^C
  hsa at hsa-Legion-5:~$ ^C
  hsa at hsa-Legion-5:~$ Opening in existing browser session.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-release-upgrader-core 1:20.04.35
  ProcVersionSignature: Ubuntu 5.8.0-63.71~20.04.1-generic 5.8.18
  Uname: Linux 5.8.0-63-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu27.18
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  Date: Sat Aug 13 19:37:26 2022
  InstallationDate: Installed on 2021-03-09 (521 days ago)
  InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2022-08-13 (0 days ago)
  VarLogDistupgradeAptlog:
   Log time: 2022-08-13 19:36:27.650360
   Log time: 2022-08-13 19:36:38.958583
   Log time: 2022-08-13 19:37:26.060484
   Log time: 2022-08-13 19:37:27.571774

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