Public bug reported:
While calculating upgrade requirements, Distribution Upgrade stopped with a
dialog that read:
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.
None of that appeared to apply, so I did as instructed. I had recently
installed the latest updated from Ubuntu, prior to doing this.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.14.19
ProcVersionSignature: Ubuntu 3.13.0-73.116~precise1-generic 3.13.11-ckt30
Uname: Linux 3.13.0-73-generic x86_64
ApportVersion: 2.0.1-0ubuntu17.14
Architecture: amd64
Date: Wed Dec 9 13:22:21 2015
GsettingsChanges:
com.ubuntu.update-manager check-new-release-ignore 'trusty'
com.ubuntu.update-manager first-run false
com.ubuntu.update-manager launch-time 1449685242
com.ubuntu.update-manager window-height 518
com.ubuntu.update-manager window-width 600
InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64
(20130213)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
LANGUAGE=en_CA:en
TERM=xterm
PATH=(custom, no user)
LANG=en_CA.UTF-8
SHELL=/bin/bash
SourcePackage: update-manager
Symptom: ubuntu-release-upgrader-core
UpgradeStatus: Upgraded to precise on 2015-12-09 (0 days ago)
VarLogDistupgradeTermlog:
** Affects: update-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug dist-upgrade precise running-unity
third-party-packages
** Attachment added: "lspci.txt"
https://bugs.launchpad.net/bugs/1524457/+attachment/4532076/+files/lspci.txt
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https://bugs.launchpad.net/bugs/1524457
Title:
Unable to upgrade from Ubuntu 12.04 LTS to 14.04 LTS
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