Patent ID: 6128734
Filing Date: 2000-10-03
Classification: G06F

Abstract:
In a first computer system responding to users under control of a first operating system, a method for upgrading the first computer system while the first computer system continues to function under control of the first operating system, the first computer system having a first boot device storing the first operating system and a second device, the method comprising:preparing the second device within the first computer system as a bootable device while the first computer system is functioning under control of the first operating system;preparing the second device within the first computer system to receive a second operating system while the first computer system is functioning under control of the first operating system;loading the second operating system onto the second device while the first computer system is functioning under control of the first operating system; andrebooting the first computer system such that the first computer system is functioning under control of the second operating system on the second device, the first operating system being unmodified during the first computer system upgrading, wherein the first computer systems continues to respond to users during the upgrading.