1. A method of configuration of a client computer system in a cluster comprising a plurality of computer systems at least one of which is an administration computer system, the computer systems of the plurality of computer systems being connected via a network, the client computer system being configured to allow booting from data stored in the administration computer system, the method, comprising: obtaining a boot media image making it possible to boot an operating system of the DOS type and obtaining configuration data from the operating system, the boot media image and the configuration data being received from the administration computer system via the network, wherein the boot media image includes a boot script; booting and configuration of the operating system, wherein the booting and configuration comprises creating a virtual storage disk via execution of the boot script; analyzing the configuration data received and, in response, obtaining at least one program for the configuration of the client computer system, the at least one program for the configuration of the client computer system being received from the administration computer system via the network, after receiving the boot media image and the configuration data, and stored in the virtual storage disk, wherein the analysis of the configuration data comprises identification of a network address of the at least one program and identification of at least one name for the at least one program; and executing the at least one program for the configuration of the client computer system.