Fail-Safe Booter Utility; Starting The Fsb - Compaq AlphaServer DS20E Reference Manual

8.11 Fail-Safe Booter Utility

The fail-safe booter (FSB) provides an emergency recovery mechanism
if the firmware image contained in flash memory becomes corrupted.
You can run the FSB and boot another image from a diskette that is
capable of reprogramming the flash ROM.
Use the FSB when one of the following failures at power-up prohibits you from
getting to the console program:
•
Firmware image in flash memory corrupted
•
Power failure or accidental power-down during a firmware upgrade
•
Error in the nonvolatile RAM (NVRAM) file
•
Incorrect environment variable setting
•
Driver error

8.11.1 Starting the FSB

Starting the FSB automatically
If the firmware image is unavailable when the system is powered on or reset,
the FSB runs automatically. When the FSB runs, the system emits a series of
beeps through the speaker as beep code 1-2-3; that is, one beep and a pause,
followed by two beeps and a pause, followed by three beeps.
1. Create an FSB diskette named DP264SRM.ROM, as described in Section
8.11.2.
2. After the diskette activity light flashes, insert the FSB diskette.
3. Reset the system to restart the FSB. The FSB loads the SRM console from
the diskette.
4. Update the firmware as described in Section 8.11.3.
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Troubleshooting 8-13