[Nix-dev] VirtualBox won't start VMs after kernel update

[Matthias Beyer]

(@ phreedom: You forgot to CC the list, so I re-send with inline
reply, so others can see your message text as well):

On 21-04-2015 22:19:07, phreedom at yandex.ru wrote:
> On Tuesday, April 21, 2015 17:39:58 Matthias Beyer wrote:
> > I did a kernel update recently. I run 3.18.7 now. I just re-installed
> > VirtualBox in my User Env (I had to build it, actually - why?) with
> > 
> >     `nix-env -i virtualbox -j 8 --cores 8`
> > 
> > but I still cannot start my VM. It tells me to
> > 
> >     `/etc/init.d/vboxdrv setup`
> > 
> > but of course, this is not possible :-)
> > 
> > What do I do?
> 
> I'm very surprised that it ever worked like this. VirtualBox needs kernel 
> modules installed and you can't install them via nix-env at all.

I have services.virtualbox.enable = true; in my configuration.nix, so
this should pull the configuration you listed below into my
configuration as well, shouldn't it?

> 
> boot.extraModulePackages = [ config.boot.kernelPackages.virtualbox ];
> environment.systemPackages = [ config.boot.kernelPackages.virtualbox ];
> 

I see my problem now, as I installed virtualbox again as a user, which
cannot work, of course, as the kernel needs to be modified. Put then,
I wonder why my kernel update did not pull a new virtualbox into my
machine setup?

> You need to load modules: vboxdrv, vboxnetadp, vboxnetflt
> And make sure the user you run as has access to /dev/vbox* devices.

Shouldn't Nix keep track of these points automatically?

-- 
Mit freundlichen Grüßen,
Kind regards,
Matthias Beyer

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