[Bug 1385657] Re: Upgrade to 14.10 fails - could not calculate the upgrade

[Mark M Lambert]

This morning I was able to upgrade to 14.10, but can't say what the bug was as I did two things:
Firstly,  I removed Unity-tweak-tool
then when I did apt-get update I got the following error:
W: Failed to fetch http://au.archive.ubuntu.com/ubuntu/dists/trusty/Release  Unable to find expected entry 'main/source/Sources' in Release file (Wrong sources.list entry or malformed file)

E: Some index files failed to download. They have been ignored, or old
ones used instead.

I hadn't had this error when trying to do the earlier updates, this was
new for today. I changed the servers from the Australian servers to the
Main server, then ran apt-get update again - it worked fine this time
and reported I had a few packages that needed updating. I updated those
packages,  ran do-release-upgrade and everything worked.

So my conclusion is that this bug was caused by either
(a) unity-tweak-tool or packages possibly related to it that were  upgraded this morning
or
(b) sync issues between the Australian server and the Main server

** Attachment added: "sources.list"
   https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1385657/+attachment/4247586/+files/sources.list

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubuntu-release-upgrader in
Ubuntu.
https://bugs.launchpad.net/bugs/1385657

Title:
  Upgrade to 14.10 fails - could not calculate the upgrade

Status in “ubuntu-release-upgrader” package in Ubuntu:
  Confirmed

Bug description:
  Upgrade from 14.04 to 14.10 fails with the following message:

  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 

  --
  I've removed all unofficial packages but still get the same error.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.5
  ProcVersionSignature: Ubuntu 3.13.0-38.65-generic 3.13.11.8
  Uname: Linux 3.13.0-38-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Sat Oct 25 23:54:26 2014
  InstallationDate: Installed on 2012-12-15 (679 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2014-10-25 (0 days ago)
  mtime.conffile..etc.update.manager.release.upgrades: 2014-10-24T10:55:19.046694

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1385657/+subscriptions