Installing an operating system in a host system

A system for installing an operating system in a host system comprising:

• a receiving module configured to receive user parameters required during operating system installation in a pre-boot execution environment and to generate an unattended installation pack, wherein the unattended installation pack comprises an answer file for the operating system installation process, and wherein the answer file comprises the user input parameters required during operating system installation in the pre-boot execution environment and application groups executed during the operating system first start-up, and wherein the application groups comprise the instruction file which requests the baseboard management controller to un-mount the virtual USB key and delete the unattended installation pack;
• a transferring module configured to transfer the unattended installation pack to a baseboard management controller;
• a command module configured to send a control command to the baseboard management controller to instruct the baseboard management controller to mount the installation pack as a USB key;
• and
• an installing module, configured to deploy the operating system in the host in response to receiving a reply from the baseboard management controller and rebooting the host after receiving the reply from the baseboard management controller and before installing the operating system, wherein during the operating system installation process, the unattended installation pack is obtained from the USB key so as to acquire the user parameters to be used in the installation process.