What you have to is tho edit your /usr/share/python-apt/templates/Ubuntu.info file, adding to it the missing references to Trusty. In a terminal run the following:
Code:
gksudo gedit /usr/share/python-apt/templates/Ubuntu.info
you'll be prompt to enter your password. Type it and Gedit will open the file with write permissions.
Once there copy/paste this
Code:
Suite: trusty
RepositoryType: deb
BaseURI: http://ports.ubuntu.com/ubuntu-ports/
MatchURI: ports.ubuntu.com/ubuntu-ports
BaseURI-amd64: http://archive.ubuntu.com/ubuntu
MatchURI-amd64: archive.ubuntu.com/ubuntu
BaseURI-i386: http://archive.ubuntu.com/ubuntu
MatchURI-i386: archive.ubuntu.com/ubuntu
MirrorsFile-amd64: Ubuntu.mirrors
MirrorsFile-i386: Ubuntu.mirrors
Description: Ubuntu 14.04 'Trusty Tahr'
Component: main
CompDescription: Officially supported
CompDescriptionLong: Canonical-supported free and open-source software
Component: universe
CompDescription: Community-maintained
CompDescriptionLong: Community-maintained free and open-source software
Component: restricted
CompDescription: Non-free drivers
CompDescriptionLong: Proprietary drivers for devices
Component: multiverse
ParentComponent: universe
CompDescription: Restricted software
CompDescriptionLong: Software restricted by copyright or legal issues
Suite: trusty
ParentSuite: trusty
RepositoryType: deb-src
BaseURI: http://archive.ubuntu.com/ubuntu/
MatchURI: archive.ubuntu.com/ubuntu|ports.ubuntu.com/ubuntu-ports
Description: Ubuntu 14.04 'Trusty Tahr'
Suite: trusty
RepositoryType: deb
MatchName: .*
BaseURI: cdrom:\[Ubuntu.*14.04
MatchURI: cdrom:\[Ubuntu.*14.04
Description: Cdrom with Ubuntu 14.04 'Trusty Tahr'
Available: False
Component: main
CompDescription: Officially supported
Component: restricted
CompDescription: Restricted copyright
Suite: trusty
Official: false
RepositoryType: deb
BaseURI: http://archive.canonical.com
MatchURI: archive.canonical.com
Description: Canonical Partners
Component: partner
CompDescription: Software packaged by Canonical for their partners
CompDescriptionLong: This software is not part of Ubuntu.
Suite: trusty
Official: false
RepositoryType: deb
BaseURI: http://extras.ubuntu.com
MatchURI: extras.ubuntu.com
Description: Independent
Component: main
CompDescription: Provided by third-party software developers
CompDescriptionLong: Software offered by third party developers.
Suite: trusty-security
ParentSuite: trusty
RepositoryType: deb
BaseURI: http://ports.ubuntu.com/ubuntu-ports/
MatchURI: ports.ubuntu.com/ubuntu-ports
BaseURI-amd64: http://security.ubuntu.com/ubuntu/
MatchURI-amd64: archive.ubuntu.com/ubuntu|security.ubuntu.com
BaseURI-i386: http://security.ubuntu.com/ubuntu/
MatchURI-i386: archive.ubuntu.com/ubuntu|security.ubuntu.com
Description: Important security updates
Suite: trusty-security
ParentSuite: trusty
RepositoryType: deb-src
BaseURI: http://archive.ubuntu.com/ubuntu/
MatchURI: archive.ubuntu.com/ubuntu|ports.ubuntu.com/ubuntu-ports|security.ubuntu.com
Description: Important security updates
Suite: trusty-updates
ParentSuite: trusty
RepositoryType: deb
Description: Recommended updates
Suite: trusty-updates
ParentSuite: trusty
RepositoryType: deb-src
BaseURI: http://archive.ubuntu.com/ubuntu/
MatchURI: archive.ubuntu.com/ubuntu|ports.ubuntu.com/ubuntu-ports
Description: Recommended updates
Suite: trusty-proposed
ParentSuite: trusty
RepositoryType: deb
Description: Pre-released updates
Suite: trusty-proposed
ParentSuite: trusty
RepositoryType: deb-src
BaseURI: http://archive.ubuntu.com/ubuntu/
MatchURI: archive.ubuntu.com/ubuntu|ports.ubuntu.com/ubuntu-ports
Description: Pre-released updates
Suite: trusty-backports
ParentSuite: trusty
RepositoryType: deb
Description: Unsupported updates
Suite: trusty-backports
ParentSuite: trusty
RepositoryType: deb-src
BaseURI: http://archive.ubuntu.com/ubuntu/
MatchURI: archive.ubuntu.com/ubuntu|ports.ubuntu.com/ubuntu-ports
Description: Unsupported updates
after the first line (the one that reads ChangelogURI: http://changelogs.ubuntu.com/changel...s_%s/changelog) and before the line that reads Suite: precise
Save and close the file and run
Code:
sudo apt-get update && sudo apt-get upgrade
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