i will not show you what is it, it is modded mineos!
The easiest way is to use default wget script. Insert an OpenOS floppy disk to computer, insert an Internet Card, turn computer on and type the following to console to install Minedows:
wget -f https://raw.githubusercontent.com/Yaroslav-Nesst/minedows/master/Installer/BIOS.lua /tmp/bios.lua && flash -q /tmp/bios.lua && reboot
You can paste it to console using middle mouse button or insert key (by default). After a moment, a nice system installer will be shown. You will be prompted to select your preferred language, boot volume (can be formatted if needed), create a user profile and customize some settings