Blade hangs on boot and "FW/BIOS, firmware progress (ABR Status) FW/BIOS ROM corruption" message in AMM

If you see and encounter error

Blade hangs on boot and "FW/BIOS, firmware progress (ABR Status) FW/BIOS ROM corruption" message in AMM - IBM BladeCenter HS22, HS22V

Symptoms
When booting BladeCenter HS22 or HS22V with Integrated Management Module (IMM) build yuoo84c installed, the blade may hang at the "UEFI Platform Initializing" screen. The hang will be accompanied by the following event in the chassis Advanced Management Module (AMM) log:

FW/BIOS, firmware progress (ABR Status) FW/BIOS ROM corruption

Affected Systems:
The system may be any of the following IBM servers:

• BladeCenter HS22, type 1936, any model
• BladeCenter HS22, type 7870, any model
• BladeCenter HS22V, type 1949, any model
• BladeCenter HS22V, type 7871, any model 

Workaround
This failure may be reduced by disabling Internet Protocol Version 6 (IPv6) support for the IMM. This can be done via the following steps:

1. Boot the blade to the F1 Unified Extensible Firmware Interface (UEFI) setup screen.
2. Select "System Settings" and press Enter
3. Select "Integrated Management Module" and press Enter
4. Select "Network Configuration" and press Enter
5. Change "IP6" setting to "Disable"

Occasionally, the failure can be recovered by restarting the IMM. If this is not successful, then it is necessary to reseat the blade in the chassis to recover. After a reseat, the blade will boot normally.

Additional Information
This error only occurs at boot time so production servers that are up and running are not at risk.

For more information, see Blade hangs on boot and "FW/BIOS, firmware progress (ABR Status) FW/BIOS ROM corruption" message in AMM - IBM BladeCenter HS22, HS22V