VirtualBox Guest Additions: Starting. VirtualBox Guest Additions: Building the VirtualBox Guest Additions kernel modules. This may take a while. VirtualBox Guest Additions: To build modules for other installed kernels, run VirtualBox Guest Additions: /sbin/rcvboxadd quicksetup VirtualBox Guest Additions: or VirtualBox Guest Additions: /sbin/rcvboxadd quicksetup all VirtualBox Guest Additions: Building the modules for kernel 3.16.0-6-amd64. update-initramfs: Generating /boot/initrd.img-3.16.0-6-amd64 VirtualBox Guest Additions: Running kernel modules will not be replaced until the system is restarted