Public bug reported:
I am trying to upgrade from 18.04 to 20.04 using do-release-upgrade and this is
the error message:
Could not calculate the upgrade
An unresolvable problem occurred while calculating the upgrade.
This was likely caused by:
* Unofficial software packages not provided by Ubuntu
Please use the tool 'ppa-purge' from the ppa-purge
package to remove software from a Launchpad PPA and
try the upgrade again.
If none of this applies, then please report this bug using the
command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. If
you want to investigate this yourself the log files in
'/var/log/dist-upgrade' will contain details about the upgrade.
Specifically, look at 'main.log' and 'apt.log'.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.42
ProcVersionSignature: Ubuntu 4.15.0-140.144-generic 4.15.18
Uname: Linux 4.15.0-140-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.9-0ubuntu7.23
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Sun Mar 28 19:33:32 2021
InstallationDate: Installed on 2016-04-22 (1801 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2021-03-28 (0 days ago)
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic dist-upgrade
** Attachment added: "here is the /var/log/dist-upgrade/apt.log"
https://bugs.launchpad.net/bugs/1921620/+attachment/5481576/+files/apt.log
** Summary changed:
- Unable to upgrade from 18.04 to 20.04, Could no calculate the upgrade
+ Unable to upgrade from 18.04 to 20.04, Could not calculate the upgrade
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https://bugs.launchpad.net/bugs/1921620
Title:
Unable to upgrade from 18.04 to 20.04, Could not calculate the upgrade
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