System and method of online firmware update for baseboard management controller (BMC) devices
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United States of America Patent
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Mar 6, 2018
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N/A
app pub date -
May 4, 2015
filing date -
May 4, 2015
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Abstract
A system includes a baseboard management controller (BMC), capable of online update of the BMC without shutting down any services. The BMC includes a processor, a volatile memory configured to perform multiple service instances, and a non-volatile memory storing a computer executable code and a root file system. The root file system includes multiple service modules as origin of the service instances. The computer executable code, when executed at the processor, is configured to: receive an update command and perform an update process based on the update command. The update process includes: copying the root file system from the non-volatile memory to the volatile memory; switching the origin of the service instances to the copy of the root file system; receiving an update root file system code; and writing the update root file system code to the non-volatile memory to obtain an updated root file system.
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