[Bug 1927660] Re: Update from 18.04 to 20.04 fails to calculate

[Brian Murray]

Thanks for taking the time to report this upgrade failure. There is
currently a new version of the release upgrader available in -proposed
which may resolve the error you've encountered. Please run the following
command to test the new version of the upgrader:

  do-release-upgrade -p

Please lets us know the results in this bug report. Thanks again and
good luck!

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

** Tags added: lp-1928397

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https://bugs.launchpad.net/bugs/1927660

Title:
  Update from 18.04 to 20.04 fails to calculate

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

Bug description:
  Have successfully performed this update with similar extra software
  installed, and can't narrow it down to what software is blocking
  things. Other bug reports talk about various other packages, many of
  which I've tried removing with no improvement.

  "apt-get purge libpython-stdlib" seems like an overreaction, and I'm
  hoping it's a misdirected diagnosis.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.44
  ProcVersionSignature: Ubuntu 4.15.0-142.146-generic 4.15.18
  Uname: Linux 4.15.0-142-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.23
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: XFCE
  Date: Fri May  7 11:16:40 2021
  InstallationDate: Installed on 2015-12-03 (1981 days ago)
  InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2021-05-07 (0 days ago)
  VarLogDistupgradeTermlog:

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