If you have a pending BIOS upgrade, a routine reset takes longer than expected and causes your server to power cycle and reboot several times. This is expected behavior, as it is necessary to power cycle the server to upgrade the BIOS firmware. If the upgrade includes an FPGA update, it can take as long as 26 minutes to complete.
A pending BIOS upgrade exists when both conditions are true:
You update the BIOS and service processor firmware using Oracle ILOM.
You select the option to Delay BIOS Upgrade.
Caution - Firmware corruption and server down time. If you reboot the server expecting a routine server reset and instead initiate a (delayed) BIOS upgrade, wait until the upgrade is finished. Do not interrupt the process, as this can result in corrupted firmware and server down time.
For details on the pending BIOS upgrade feature in Oracle ILOM, refer to https://www.oracle.com/goto/ilom/docs.