Public bug reported:
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'.
Restoring original system state
Aborting
Reading package lists... Done
Building dependency tree
Reading state information... Done
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.38
ProcVersionSignature: Ubuntu 5.4.0-48.52~18.04.1-generic 5.4.60
Uname: Linux 5.4.0-48-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.18
Architecture: amd64
CrashDB: ubuntu
Date: Tue Oct 13 10:33:41 2020
InstallationDate: Installed on 2020-04-07 (189 days ago)
InstallationMedia: Ubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64
(20200203.1)
PackageArchitecture: all
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2020-10-13 (0 days ago)
VarLogDistupgradeAptclonesystemstate.tar.gz:
Error: command ['pkexec', 'cat',
'/var/log/dist-upgrade/apt-clone_system_state.tar.gz'] failed with exit code
127: Error checking for authorization org.freedesktop.policykit.exec:
GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected
from message bus without replying
** (process:10407): WARNING **: 10:33:45.010: Error unregistering
authentication agent: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown:
The name :1.8 was not provided by any .service files
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic dist-upgrade
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https://bugs.launchpad.net/bugs/1899661
Title:
Upgrading from 18.04 to 20.04 failed
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