Package names do not match the expected format

[Melab]

When one has kernel packages installed in Ubuntu, their name is usually of the form X.Y.0-Z-generic. The ones downloaded by this script match the form X.Y.A-XYA-generic. Clearly, these are not the correct packages. Or, rather, if they are the packages that were once downloaded/installed by previous Ubuntu releases, then there is no way for the user of this script to figure out which one is the one that they are looking for.