[Bug 1908279] Re: Unable to upgrade from 18.04LTS to 20.04LTS

[Klaus]

Hi Brian,
Thanks for the reply.
I have added a comment on the internet side for #1908279  and now as a 
reply to your e-mail . As I am not so clued up with Bug reporting I hope 
one is correct.

As I had no problems for upgrading from 16.04 LTS to 18.04 LTS , I am 
bit confused with the problem.

-------   copy of my comment  ---------

Thanks Brian for the info but sorry no go.

I realize I made a mistake to reply, my reply was on #1893930
Below I have copied my reply :

After first trying to upgrade with : do-release-upgrade -p
the result was :
An unresolvable problem occurred while calculating the upgrade.

This was likely caused by:
* Unofficial software packages not provided by Ubuntu
  I then unticked all " PPA 's "

The result was :
Could not determine the upgrade

An unresolvable problem occurred while calculating the upgrade.

Can't the upgrader indicate [ Which "Unofficial" software is a problem ?
]

My next option is to get a fourth hard drive installed on the PC and 
install 20.04.lts there.
[ I have drive 1 = Win XP , drive 2 = Win 7 , drive 3 = Ubuntu 18.04 LTS ]

Thanks
Klaus
  -------------  end of copy -----------

Regards
Klaus Richter


On 10/04/2021 01:14, Brian Murray wrote:
> Unable to upgrade from 18.04LTS to 20.04LTS

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubuntu-release-upgrader in
Ubuntu.
https://bugs.launchpad.net/bugs/1908279

Title:
  Unable to upgrade from 18.04LTS to 20.04LTS

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

Bug description:
  Apparently some problems with ppa's, can I remove all ppa's?

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.41
  ProcVersionSignature: Ubuntu 4.15.0-128.131-generic 4.15.18
  Uname: Linux 4.15.0-128-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.20
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Dec 15 17:42:28 2020
  InstallationDate: Installed on 2014-05-24 (2396 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-12-15 (0 days ago)
  VarLogDistupgradeTermlog:

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