Patent ID: 6108780
Filing Date: 2000-08-22
Classification: G06F

Abstract:
In a computer which enables replacement of a system-resident volume into which an operating system is installed, an operating system booting apparatus comprising:a backup memory;an installation device which, when an operating system is installed onto a disk that serves as a system-resident volume, writes into said backup memory and onto said disk an identifier of said operating system and booting information of said operating system;a referencing device which, when booting of said operating system starts, accesses said backup memory and said system-resident volume which is installed in the computer and judges whether or not said identifier of said operating system and said booting information are stored in both of said backup memory and said system-resident volume and, if said operating system identifier and said booting information are stored within both, judges whether or not these coincide with one another; anda booting device which, in the case in which said referencing device judges a condition of coincidence, performs booting of said operating system, but which, in the case in which said referencing device judges non-coincidence and in the case in which a judgment is made that said operating system identifier and booting information is stored only in the system-resident volume, causes the contents of said backup memory to coincide with the operating system identifier and booting information that is stored in said system-resident volume, and then boots said operating system.