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Method for loading an operating system through a network

  • US 5,142,680 A
  • Filed: 04/26/1989
  • Issued: 08/25/1992
  • Est. Priority Date: 04/26/1989
  • Status: Expired due to Term
First Claim
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1. In a computer network comprising a plurality of computers, each computer comprising a central processing unit (CPU), memory, offline storage, input/output devices, and a current operating system stored on a disk drive, a method for loading a transferring operating system onto a first one of said computers from a second one of said computers comprising:

  • setting a root directory in the memory of the first computer;

    loading a subset operating system into the memory of the first computer from the offline storage of the first computer, said subset operating system comprising commands for copying files, creating file directories, formatting disk drives, and establishing a network connection and operation on the network;

    initializing the first computer using the subset operating system;

    initializing the disk drive of the first computer by executing the commands for formatting disk drives and creating file directories to create a hierarchical file system on the disk drive of the first computer having a base at the root directory;

    establishing communications between the first computer and the network by executing the commands for establishing a network connection and operation on the network to communicate with the second computer; and

    copying operating system files of the transferring operating system in the second computer and loading the copy of the transferring operating system files from the second computer over the network into the hierarchical file system created on the disk drive of the first computer by executing the command for copying files in the first computer,whereby the disk drive of the first computer is rewritten with the copy of the transferring operating system loaded from the second computer without corrupting the subset operating system stored in the memory of the first computer.

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