Unable to upgrade from 15.04 to 15.10

Bug #1532649 reported by WangWentao
10
This bug affects 2 people
Affects Status Importance Assigned to Milestone
ubuntu-release-upgrader (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

The messages shown when I execute do-release-upgrade:

Checking package manager
Reading package lists... Done
Building dependency tree
Reading state information... Done
Building data structures... Done

Calculating the changes

Calculating the changes

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

If none of this applies, then please report this bug using the
command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal.

Restoring original system state

Aborting
Reading package lists... Done
Building dependency tree
Reading state information... Done
Building data structures... Done

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ubuntu-release-upgrader-core 1:15.04.14.3
ProcVersionSignature: Ubuntu 3.19.0-43.49-generic 3.19.8-ckt10
Uname: Linux 3.19.0-43-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.17.2-0ubuntu1.8
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Mon Jan 11 09:48:49 2016
InstallationDate: Installed on 2015-03-12 (305 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to vivid on 2016-01-11 (0 days ago)
VarLogDistupgradeTermlog:

Revision history for this message
WangWentao (wwthunan) wrote :
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in ubuntu-release-upgrader (Ubuntu):
status: New → Confirmed
tags: added: vivid2wily
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