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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.

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up vote 93 down vote accepted

In Ubuntu 14.04, Virtualbox package version 4.3.10 is available in multiverse repository. So enable multiverse repository and install virtualbox through apt-get.

sudo add-apt-repository multiverse
sudo apt-get update
sudo apt-get install virtualbox

How i know that information?

$ apt-cache policy virtualbox
  Installed: (none)
  Candidate: 4.3.10-dfsg-1
  Version table:
     4.3.10-dfsg-1 0
        500 trusty/multiverse amd64 Package
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Great, It was exactly that. I have virtualbox running again. – Hatoru Hansou Apr 22 '14 at 18:59
Kudos for adding the "How I know that information?"-part – MadMike Apr 30 '14 at 11:37

It seems the problem is that VirtualBox is not entirely free software anymore. Because of this, it was moved from universe (unsupported free software) to multiverse (unsupported non-free software).

From Ubuntu bug #1164654:

Please move the virtualbox package from universe to multiverse in raring.
SInce virtualbox 4.2 building the BIOS image requires a non-free compiler (Open Watcom).
Upstream provides pre-built BIOS images which is used instead.
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I was able to install it just now with the command: sudo apt-get install virtualbox. It just took about 3 minutes and it is done.

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Another suggestion: install package directly from Oracle. When I open VBox under 12.04.4, I get a prompt, ". . . new version of VirtualBox has been released! Version 4.3.10 is available . . ." with a link to download from Oracle. (I don't do this, fearing I'll upset what works, as in, "if it works, don't fix it.")

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Welcome to Askubuntu! Isn't your suggestion the same as what the original poster mentions in his last paragraph? – Jos Apr 29 '14 at 21:45

I have just added VirtualBox 4.3.10 from the Ubuntu Software Centre as normal on my laptop, it was missing just after Ubuntu 14.04 LTS was released but is there now. I did also download it from the Oracle site for my desktop (where I use it most) and had to use the info for installing on Ubuntu 13.10 (which worked OK) when Ubuntu 14.04 LTS was released.

I think it may just have been delayed until after the release date. Both installations work OK.

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