So the update-manager part of the verification is done as you were offered to upgrade to Vivid. To test the ubuntu-release-upgrader part you'll need to use 'do-release-upgrade -p' which will use the release upgrade tarball from -proposed.
So the update-manager part of the verification is done as you were offered to upgrade to Vivid. To test the ubuntu- release- upgrader part you'll need to use 'do-release-upgrade -p' which will use the release upgrade tarball from -proposed.