Public bug reported:
A question in Nov 2020 appeared in http://answers.launchpad.net/ubuntu/
:
694046 not able to upgrade to 20.04 fm 18.04 Could not calculate the
upgrade An unresolvable problem occurred while calculating the upgrade.
I have the same problem for months now. His question was not resolved.
Hope the bug is fixed because in April 2023, 18.04 will be obsolete.
Might need to buy a new computer and OS.
Both of us may not the most computer literate. Or haven't been answered.
Thank you.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.42
ProcVersionSignature: Ubuntu 4.15.0-136.140-generic 4.15.18
Uname: Linux 4.15.0-136-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.9-0ubuntu7.23
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: MATE
Date: Thu Feb 25 09:19:08 2021
InstallationDate: Installed on 2018-09-01 (907 days ago)
InstallationMedia: Computerbank 18.04 - Release amd64
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2021-02-24 (0 days ago)
VarLogDistupgradeTermlog:
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic dist-upgrade third-party-packages
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https://bugs.launchpad.net/bugs/1916805
Title:
18.04 to 20.04 upgrade failure
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