I'm having some problems trying to run my Windows XP virtual machine after upgrading to Ubuntu 14.04 today. When I tried to start it a message dialog was displayed saying that the kernel drivers aren't installed, in concrete they should be provided by a packaged named
virtualbox-dkms. I decided to reinstall
virtualbox so dependencies will get auto resolved, but the execution of command (
sudo apt-get install --reinstall virtualbox) resulted in a message similar to: "cannot reinstall package because the package cannot be downloaded" (I'm reproducing the message by memory).
Then I tried using synaptic package manager gui. The package
virtualbox and its dependencies are there, but without version number or description. Then I switched to main servers, and tried to update, now the package isn't even there anymore.
It may be a problem with my sources.list file but also may be that for some reason I don't know they decide to remove
virtualbox from repository.
I think I will try to download the packages from the virtual box site for now but in Ubuntu I always installed virtualbox from repository.