System Startup, Configuration, and Shutdown Reference Manual (32650-90907)

Chapter 3
System Startup Functions
Activating and Deactivating Autoboot and Autosearch Functions
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CAUTION The commands described in the above paragraph may disrupt normal system functions if used
inappropriately. For this reason, do not attempt to use these commands without assistance
from Hewlett-Packard service personnel.
To execute any of these three commands, enter the command with its appropriate parameter or enter
Return
after the command and wait to be prompted for further input:
ISL> altpath 0/0/1/0.6
or
ISL> ALTPATH
Enter alternate boot path: 0/0/1/0.6
To withdraw a command (without changing the path), enter
Return after entering the command without any
parameter. For example,
ISL> ALTPATH
Enter alternate boot path:
Return
Invalid Input.
Trailing zeros are not required when a boot path is entered:
ISL> PRIMPATH primpath 0/0/2/0.6.0.0
ISL> CONSPATH 0/0/4/0
If an improper path format is entered, or you have withdrawn a command as shown above, the system issues
an Invalid Input message. Then ISL prompts for a new command:
ISL> PRIMPATH 240
Invalid Input.
ISL>
Displaying Current Boot Path, Autoboot, and Autosearch Settings
Since an improper path keeps the system from booting, use the DISPLAY command to check the paths entered.
Double check these entries against a recent I/O map from the ISL IOMAP utility or a configuration listing from
the SYSGEN utility. For more information on SYSGEN, refer to Chapter 4, “Using the System Generator
(SYSGEN).”
The DISPLAY or DI command lists the autoboot and autosearch settings, the primary boot path, the alternate
boot path, and the system console path held in stable storage. Use the DISPLAY command to verify that
correct information resides in stable storage. Example 3-3 demonstrates using the ISL DISPLAY command.
This is an example from a N-class system. The boot paths may vary, depending on the system.
Example 3-3 Displaying an Example of ISL Settings
ISL> display
Fastsize value is 0000000F
Autoboot is OFF (disabled)
Autosearch is OFF (disabled)