If the UEFICfg LateSync feature is enabled, the server reboots 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, see Oracle X4 Series Servers Administration Guide or the Sun Server X4-8 Service Manual.