[Bug 1914963] [NEW] Unable to upgrade to 20.04, could not calculate upgrade.

[Jason Smith]

Public bug reported:

I'm currently using Ubuntu 18.04.5 LTS and I'm trying to upgrade to
20.04. I keep getting the 'could not calculate upgrade' error. I have
searched through bug reports exhaustively and cannot find the solution.
I have no broken packages according to apt and aptitude. I don't know
what to do. I've removed everything that shows up in previous bug
reports as causing problems.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.42
ProcVersionSignature: Ubuntu 5.4.0-65.73~18.04.1-generic 5.4.78
Uname: Linux 5.4.0-65-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.9-0ubuntu7.23
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Sun Feb  7 15:20:03 2021
InstallationDate: Installed on 2019-03-12 (698 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/usr/bin/zsh
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2021-02-07 (0 days ago)
VarLogDistupgradeTermlog:

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug bionic dist-upgrade

-- 
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/1914963

Title:
  Unable to upgrade to 20.04, could not calculate upgrade.

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

Bug description:
  I'm currently using Ubuntu 18.04.5 LTS and I'm trying to upgrade to
  20.04. I keep getting the 'could not calculate upgrade' error. I have
  searched through bug reports exhaustively and cannot find the
  solution. I have no broken packages according to apt and aptitude. I
  don't know what to do. I've removed everything that shows up in
  previous bug reports as causing problems.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.42
  ProcVersionSignature: Ubuntu 5.4.0-65.73~18.04.1-generic 5.4.78
  Uname: Linux 5.4.0-65-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.20.9-0ubuntu7.23
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Feb  7 15:20:03 2021
  InstallationDate: Installed on 2019-03-12 (698 days ago)
  InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/usr/bin/zsh
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2021-02-07 (0 days ago)
  VarLogDistupgradeTermlog:

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1914963/+subscriptions