That did it, compiling aircrack-ng now.

I pulled the 20150713 void-beaglebone image, not sure how it can be too dated already.

On Saturday, August 15, 2015 at 12:55:09 PM UTC-5, Christian Neukirchen wrote:
Vorell <dar...@gmail.com> writes:

> So then the result I am getting is:
>
> $ [*] Updating `http://repo.voidlinux.eu/current/armv7l-repodata' ...
> $ [*] Updating `http://repo.voidlinux.eu/current/nonfree/armv7l-repodata' ...
> $ ERROR unshare (Invalid argument)
>
> Any pointers or advice? Are there any logfiles I can check?

Perhaps your kernel is too old for unshare?
Try putting XBPS_CHROOT_CMD=uchroot into etc/conf.

--
Christian Neukirchen  <chne...@gmail.com>  http://chneukirchen.org