RELIABLE AND SECURE UPDATING AND RECOVERY OF FIRMWARE FROM MASS STORAGE DEVICE

Title:

RELIABLE AND SECURE UPDATING AND RECOVERY OF FIRMWARE FROM MASS STORAGE DEVICE

Document Type and Number:

Japanese Patent JP2004145886

Kind Code:

A

Abstract:

To provide an update/recover system for system firmware (BIOS) capable of preventing the falsification or deletion of a file.

Files containing a copy of system firmware (BIOS) and a firmware update utility for writing to the system EEPROM or flash ROM are transferred to a mass storage device. Once the files are transferred, the area on the mass storage device is protected in a Host Protected Area, for example. After protecting or locking this area, the system firmware or a boot utility either boots the standard operating system or runs the firmware update utility from the Host Protected Area in recovery mode if the firmware is corrupted. This allows the firmware update utility to run in an environment outside and independent of the standard operating environment of the computer system.

Inventors:

BOALS DANIEL A
DEMMING DAO B
LANE KRAIG

Application Number:

JP2003360486A

Publication Date:

May 20, 2004

Filing Date:

October 21, 2003

Export Citation:

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Assignee:

FIINIKKUSU TECHNOLOGIES LTD

International Classes:

G06F12/14; G06F9/00; G06F9/06; G06F9/445; G06F11/00; G06F12/16; G06F15/177; G06F21/57; G06F21/64; G11C29/00; G06F; (IPC1-7): G06F11/00; G06F9/445; G06F12/14; G06F12/16

Attorney, Agent or Firm:

Masaki Yamakawa

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