Scanning initial CD-ROM sectors for a boot record and executing

Details Scanning initial CD-ROM sectors for a boot record and executing Scanning initial CD-ROM sectors for a boot record and executing

1993-09-10

1995-05-23

Lall, Parshotam S.

Boots, shoes, and leggings

395700, 364DIGI, 364DIGII, G06F 924, G06F 9445

Patent

active

054189187

ABSTRACT:
A computer system capable of booting currently manufacturable CD-ROMs or tapes without altering the ISO standard or requiring special, customized software to perform this function. A CD-ROM developed for booting according to the present invention contains a boot record as defined by the ISO but located at the end of the defined system area. The operating code of the computer scans for a boot record starting at the beginning sector of the CD-ROM and ending at either a default number or the volume descriptor terminator. The floppy disk boot images are contained at the end of the primary volume space and incorporated in the primary volume space, not external to the primary volume space as in the ISO standard. Boot code contained in the boot record determines the size of the volume, and the proper floppy image to be used and then the actual location of the floppy image. Booting of the system then commences using the floppy image.

REFERENCES:
patent: 5093915 (1992-03-01), Platteter et al.
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patent: 5210875 (1993-05-01), Bealkowski et al.
patent: 5247659 (1993-09-01), Curran et al.
patent: 5274816 (1993-12-01), Oka
Jex, Jerry. "Flash Memory BIOS for PC and Notebook Computers", 1991, pp. 692-695.
ISO 9660 Standard, International Organization for Standardization, Sep. 1, 1988, pp. 1-31.

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