BIOS Update Support ESB2 BMC Core TPS
Revision 1.0
Intel order number E18291-001
194
16. BIOS Update Support
The server system supports these flash update utilities:
iFlash32: EFI Shell, Windows PE
Intel
®
One Boot Flash Update
16.1 Rolling BIOS
The Rolling BIOS feature provides a fault tolerant BIOS update mechanism. The BIOS relies on
specialized hardware and additional flash space to support the Rolling BIOS feature.
The server system supports two physical 4 MB flash parts, each storing a separate BIOS image.
The physical flash part containing the BIOS image used to boot the system is referred to as the
Primary Flash Bank.
The physical flash part containing the alternate or backup BIOS image is referred to as the
Secondary Flash Bank. All BIOS flash updates are made to the Secondary Flash Bank.
16.1.1 Operating Modes
The Rolling BIOS jumper has two operating modes.
Pins 2-3 Connected – Normal Mode (Default Setting)
Pins 1-2 Connected – Force Other Bank
Rolling BIOS behavior is described below for each of these jumper settings.
16.1.2 Rolling BIOS Jumper Behavior (Normal Mode)
The user should perform all BIOS flash updates with the Rolling BIOS Jumper configured for
Normal Mode (default jumper setting). The following steps describe the BIOS flash update
process:
1. Configure the Rolling BIOS Jumper to Normal Mode (Pin 2 and 3).
2. Boot the system.
3. Update the BIOS using the EFI Flash or Intel
®
One Flash Update (OFU) utility.
4. Reset the system.
5. The Rolling BIOS feature automatically performs the following steps:
- Boots the system using the old BIOS image.
- Validates the new BIOS image.