Patent ID: 6928541
Filing Date: 2005-08-09
Classification: G06F

Abstract:
1. A network operating system booting method, comprising: (a) a step, performed by a user terminal when power is supplied to said user terminal, of executing a system BIOS that has been stored on a read-only storage device, executing predetermined initialization processing by the system BIOS, subsequently loading BIOS preboot means, which has been stored in said storage device, into a memory of said user terminal and delivering control to said BIOS preboot means; (b) a step, performed by said BIOS preboot means, of acquiring OS booting user information, which has been stored on a removable storage medium, using a removable-storage device driver of said user terminal, and displaying this user information as a boot menu on a display of said user terminal; (c) a step, performed by said BIOS preboot means when the user selects an OS environment from the boot menu displayed on said display, of transmitting user information to a server via a network, said user information corresponding to the OS environment selected by the user and including an operating system, start-up application, user ID and security information; (d) a step, performed by said server that has received the user information transmitted from said user terminal, of retrieving the user information from a user database on which user information has been registered in advance, comparing the user information that has been transmitted from said user terminal with information that has been registered in said user database, and transmitting a specified operating system and application to said user terminal if it is verified that the user possesses the privilege to implement a requested OS environment; and (e) a step, performed by said BIOS preboot means of said user terminal, of storing the operating system and application, which have been transmitted from said server, as files in a secondary storage device of said user terminal, delivering control to said operating system together with an OS boot option, and booting said operating system.