Method and apparatus for creating alternate boot environments in

Details Method and apparatus for creating alternate boot environments in Method and apparatus for creating alternate boot environments in

1997-01-03

1999-07-13

Heckler, Thomas M.

Electrical computers and digital processing systems: support

Digital data processing system initialization or configuration

Loading initialization program

395712, G06F 9445

Patent

active

059220724

ABSTRACT:
The present invention discloses a method, apparatus, and article of manufacture for version migration and fallback of software components in a computer system. The invention creates alternate boot environments that preserve the state of all original software components on a system before performing a software upgrade. The invention virtually eliminates the risks of migrating to upgraded system because users can quickly fall back to a previous operating environment, without extended downtime during and after upgrades.

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