If you are running operating systems in VirtualBox, it is a good idea to install Guest Additions on the guest system, which will provide a greater degree of compatibility with the virtual hardware so that the guest system can make better use of the available hardware resources. In this description, we will install the Guest Additions package on a system with a Debian 6.1 (Bullseye) KDE desktop environment running in VirtualBox 11.

Thanks to virtualization, we have the ability to run another operating system within our computer’s existing operating system. This can be used for a variety of purposes, in this case I will use the free VirtualBox virtualization program for the installation, in which I will install the guest operating systems that are the subject of the tutorials. In this description, in VirtualBox running on a Linux host, I create a guest machine for Linux or Windows operating systems with a graphical desktop environment that requires more hardware resources - and therefore different settings in some places - than the previous version for Linux base systems.