Im running a fresh Slackware64-install, did alienbob's multilib, managed to compile and install virtualbox-ose + kernel-module
I can modprobe vboxdrv as root sucessfully and start my VBox as normal user, but after reboot of course id have to modprobe it again.
If I try to start vboxdrv like this:
... or stop or setup ...
bash: /etc/rc.d/rc.vboxdrv: Permission denied