Method and apparatus for updating system software for a pluralit

Details Method and apparatus for updating system software for a pluralit Method and apparatus for updating system software for a pluralit

1988-08-15

1991-04-16

Lee, Thomas C.

Boots, shoes, and leggings

3642692, 3642844, 3642854, 364286, 371 19, G06F 1500, G06F 1100

Patent

active

050088149

ABSTRACT:
In maintaining a communication network of processing units distributed in multiple nodes linked by communication channels, system software in a plurality of data processing units is updated by first installing the updated software in a first node. The updated software is transmitted through the network to other nodes. A trial use of the updated software is initiated in the nodes. If failures of the updated software are detected in a node, that node will be restored to the original software version. If the trial use of the updated software is completed successfully in a node, the updated version will be installed as a preferred operational version in the node. a

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