*** This bug is a duplicate of bug 1768620 ***
https://bugs.launchpad.net/bugs/1768620
Public bug reported:
i was upgrading from ubuntu 17.10 to 18, one machine was upgraded
successfully, but another (this) machine is not upgrading it says: Could
not calculate the upgrade:
An unresolvable problem occurred while calculating the upgrade.
This can be caused by:
* Upgrading to a pre-release version of Ubuntu
* Running the current pre-release version of Ubuntu
* Unofficial software packages not provided by Ubuntu
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: ubuntu-release-upgrader-core 1:17.10.11
ProcVersionSignature: Ubuntu 4.13.0-39.44-generic 4.13.16
Uname: Linux 4.13.0-39-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.8
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Mon May 7 15:10:37 2018
InstallationDate: Installed on 2018-03-16 (52 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to artful on 2018-05-07 (0 days ago)
VarLogDistupgradeTermlog:
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug artful dist-upgrade third-party-packages
wayland-session
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https://bugs.launchpad.net/bugs/1769608
Title:
i was upgrading from ubuntu 17.1 to 18, one machine was upgraded, but
another (this) machine is not upgrading
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