Firmware recovery by image transfusion
US11829248B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2021 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Jan 22, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/86
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An information handling system includes a memory and a baseboard management controller. The memory includes a recovery partition including a recovery kernel, a first boot partition including first firmware, and a second boot partition including backup firmware. The baseboard management controller (BMC) attempts a first boot operation of the first firmware in the first boot partition. In response to a failure of the first boot operation, the BMC attempts a second boot operation of the backup firmware in the second boot partition. In response to a failure of the second boot operation, the BMC operates a recovery kernel. During the operation of the recovery kernel, the BMC provides a firmware request to an enclosure controller, receives blocks of correct firmware from a functioning baseboard management controller, stores the blocks of correct firmware in the first boot partition, attempts and completes a third boot operation of the correct firmware.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.