Failsafe Boot Block Rom - HP Xw9400 - Workstation - 16 GB RAM Reference Manual

FailSafe Boot Block ROM

The FailSafe Boot Block ROM allows for system recovery in the unlikely event of a ROM flash failure,
for example, if a power failure occurs during a ROM upgrade. The Boot Block is a protected section of
the ROM that checks for a valid system ROM flash when the system is powered on.
NOTE: System recovery can use a removable medium such as a diskette, CD, or USB.
● If the system ROM is valid, the system starts normally.
●
If the system ROM fails the validation check, the FailSafe Boot Block ROM provides enough support
to start the system from a ROMPaq removable medium which will program the system ROM with
a valid image.
NOTE: Workstation models that support recovery from a ROMPaq CD provide ISO ROMPaq images
in the downloadable ROM SoftPaq.
When the Boot Block detects an invalid system ROM, the System Power LED blinks red eight times,
once every second, followed by a two-second pause. Also, you will hear eight beeps that correspond
to the blinks. A Boot Block recovery mode message is displayed on the screen (some models).
To recover the system after it enters Boot Block recovery mode:
1. If a removable medium is loaded in the workstation, remove it and power down the workstation.
2. Insert the appropriate ROMPaq removable medium in the workstation.
3. Power on the workstation.
If no ROMPaq removable medium is found, you are prompted to insert one and restart the
workstation.
If a setup password has been established, the Caps Lock light illuminates and you are prompted
to enter the password.
4. Enter the setup password.
If the system successfully starts from the removable medium and successfully reprograms the
ROM, the three keyboard lights illuminate.
5. Remove the removable medium and restart the system.
The following table lists the various keyboard light combinations used by the Boot Block ROM (when a
PS2 keyboard is attached to the workstation) and explains the meaning and action associated with each
combination.
Table 4-2 PS2 keyboard light combinations used by Boot Block ROM
Light
*
FailSafe
Boot Block
Mode
Num Lock
Caps Lock
Num, Caps,
Scroll Lock
40 Chapter 4 System management
State
Keyboard LED State/Message
Activity
On ROMPaq diskette or ROMPaq CD not present, is bad, or
drive not ready
On Enter password
Blink On in Keyboard locked in network mode
sequence, one at a
time—N,C, SL
Description
ENWW