Public bug reported:
Steps to repeat:
1. Launch Software Updater
2. Software Updater reports software is up to date but offers 15.10
3. Click Upgrade and authenticate
4. Wily Werewolf Release Notes is displayed. Click Upgrade
Expect:
Upgrade to 15.10
Observe:
Process halts because "could not calculate the upgrade"
Info:
lsb_release -rd
Description: Ubuntu 14.04.4 LTS
Release: 14.04
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-release-upgrader-core 1:0.220.8
ProcVersionSignature: Ubuntu 3.16.0-76.98~14.04.1-generic 3.16.7-ckt27
Uname: Linux 3.16.0-76-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Thu Jun 30 19:47:34 2016
InstallationDate: Installed on 2015-06-25 (371 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to trusty on 2016-07-01 (0 days ago)
VarLogDistupgradeTermlog:
mtime.conffile..etc.update.manager.release.upgrades: 2016-06-30T19:36:58.457826
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug dist-upgrade third-party-packages trusty
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https://bugs.launchpad.net/bugs/1597980
Title:
Could not upgrade from 14.04 LTS to 15.10
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