I've been following these instrctions to install the guest packages for arch linux.Unfortunatelly modprobe returns:[snooc@archfire ~]$ modprobe -a vboxguest vboxsf vboxvideomodprobe: WARNING: Module vboxguest not found.modprobe: WARNING: Module vboxsf not found.modprobe: WARNING: Module vboxvideo not found.pacman -Ss virtualbox is showing:[snooc@archfire ~]$ pacman -Ss virtualbox...community/virtualbox-guest-modules 4.3.12-1 [installed]    Guest kernel modules for VirtualBox...community/virtualbox-guest-utils 4.3.12-1 [installed]    VirtualBox Guest userspace utilities...How can I fix this? I have no idea where to begin.Arch Linux is guest on VirtualBox which runs under Win7.
VirtualBox: modprobe can't find vboxguest, vboxsf, vboxvideo
arch linux;virtualbox;kernel modules
I had the exact same problem when i was trying to install arch on virtualbox earlier today.The solution is to run depmod$ depmod 3.14.4-1-ARCHAfter running modprobe again, it should work.You can use uname -r to find your kernel version string.Source