Reliable and secure updating and recovery of firmware from a mass storage device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
N/A
Issued Date -
Apr 22, 2004
app pub date -
Oct 21, 2002
filing date -
Oct 21, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Systems, methods, and software that update or recover system firmware (BIOS) of a computer system using a utility running from a protected area of a mass storage device. This avoids the standard operating system environment and removes the possibility of tampering or deletion of required files. 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 the mass storage device. Once the files are transferred, the area on the mass storage device containing these files are protected in a Host Protected Area, for example. After protecting or locking this area of the mass storage device, the system firmware or 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 of and independent of the standard operating environment of the computer system. In the event that an end user needs to update the system firmware, an application is used to provide the firmware update utility with a new firmware image. This application then requests that the system boot the update utility on next boot.
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