[arch-general] unable to load virtualbox kernel module

[James]

I just installed virtualbox  yesterday and I rebooted and can't load the 
kernel module.

I reinstalled the package:
$ sudo pacman -S virtualbox-host-modules

> (1/1) reinstalling virtualbox-host-modules         
> [######################] 100%
> In order to use the new version, reload all virtualbox modules manually.
> $ sudo insmod vboxdrv
> insmod: ERROR: could not load module vboxdrv: No such file or directory