VirtualBox is used for running the system in an isolated environment. With its help it is possible to install Greentea in any file on the computer with the existing system, and changes within the virtual environment thus do not affect external files or devices.
To install in this case, you only need to have a computer with a preinstalled system and a sufficient amount of memory (both disk and RAM). You may also need to enable the VT-x option in the BIOS or UEFI.
VM VirtualBox Extension Packand open it (VirtualBox should start and suggest installing the extension).
virtualbox-dkms instead of normal
virtualbox in case of problems.