System design and code update strategy to implement a...

Details System design and code update strategy to implement a... System design and code update strategy to implement a...

2005-08-04

2008-08-05

Patel, Nitin C (Department: 2116)

Electrical computers and digital processing systems: support

Reconfiguration

C713S001000, C713S002000, C714S001000, C714S002000, C714S003000, C714S006130, C714S036000

Reexamination Certificate

active

07409539

ABSTRACT:
The present invention relates to boot code processing of a computer system, and in particular to a method and respective system for managing boot code of a computer system, wherein the system comprises at least a first and a redundant second boot memory portion, and wherein the system is booted from one of said portions, referred to as the active booting portion, the other boot portion being in a stand-by mode and being referred to as inactive boot portion. In order to increase the robustness of a computer system against failures due to errors in boot code updates it is proposed to perform the steps of: a) booting the system from said first one (default) of said two boot memory portions; b) verifying the correctness of the boot procedure, if not correct; c1) re-booting from said second boot portion, and c2) replicating the boot code from the active boot memory portion to the non-active boot memory portion, if correct; d) replicating the boot code from the active boot memory portion to the non-active boot memory portion; e) run normal operation mode.

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patent: 2004/0153846 (2004-08-01), Lee
patent: 2005/0273588 (2005-12-01), Ong et al.

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