The UEFICfg LateSync feature causes the server to reboot at the end of BIOS POST if the BIOS/boot configuration is changed. The first boot synchronizes the changes to Oracle ILOM.
The BIOS boot configuration can change in response to a customer selection or automatically in response to certain system changes.
Customer selections include changes to the boot order, boot list, or boot mode.
Automatic changes can be triggered in response to events such as removing or adding a PCIe card or memory risers.
Normally this is not a problem. Just wait for the second boot to finish and the server should operate normally.
When UEFICfg LateSync is disabled, Oracle ILOM might not be synchronized with the BIOS configuration changes until the next boot.
For more information, refer to the Oracle X5 Series Servers Administration Guide or the Oracle Server X5-8 Service Manual.