As far as I know, you need at least VirtualBox 4.2.0 to build guest additions since Ubuntu 12.10. Not that 4.2.0+ will build for Ubuntu 13.04.
As far as I know, you need at least VirtualBox 4.2.0 to build guest additions since Ubuntu 12.10. Not that 4.2.0+ will build for Ubuntu 13.04.