Trying to upgrade from 13.10 to 14.04 LTS.

[José Tony Stark Peña]

 In update-manager turned off all checkboxes under "other software" tab.

Steps to recreate problem
In terminal
$ update-manager
click upgrade
click upgrade

Window with title distribution upgrade

while going thru
Setting new software channels

I get another message box that says could not calculate the upgrade ....

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: ubuntu-release-upgrader-core 1:0.205.5
ProcVersionSignature: Ubuntu 3.11.0-19.33-generic 3.11.10.5
Uname: Linux 3.11.0-19-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
CrashDB: ubuntu
Date: Fri Apr 18 02:59:11 2014
InstallationDate: Installed on 2013-04-21 (362 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to saucy on 2014-04-18 (0 days ago)
VarLogDistupgradeTermlog: