System Startup, Configuration, and Shutdown Reference Manual (32650-90892)

36 Chapter2
Initiating System Activity
The Booting Process
LSBATCH List contents of batch file
BATCH Execute commands in batch file
LSEST List contents of EST (Extended Self Test) file
EST Execute commands in EST (Extended Self Test) file
Enter 'LS' to see a list of the ISL utilities.
ISL>
When the sequence is interrupted, you are asked to select whether the system should boot
from the primary system disk or from a system load tape on the alternate boot path. A
third prompt allows you to enter a different boot path interactively. As another option, if
you enter a “?” at the Enter boot path, command, or ? prompt, you see a menu of boot
command options.
The menu and boot command options can differ depending on your system. Example 2-5
shows the menu for an N-Class System.
Example 2-5. Boot Command Options for an N-Class System
---- Main Menu ---------------------------------------------------------------
Command Description
------- -----------
BOot [PRI|ALT|<path>] Boot from specified path
PAth [PRI|ALT] [<path>] Display or modify a path
SEArch [DIsplay|IPL] [<path>] Search for boot devices
COnfiguration menu Displays or sets boot values
INformation menu Displays hardware information
SERvice menu Displays service commands
DIsplay Redisplay the current menu
HElp [<menu>|<command>] Display help for menu or command
RESET Restart the system
----
Main Menu: Enter command or menu >
If you enter an improper boot path, forget to place the boot device online, or if the disk or
tape medium is defective, the system displays a boot device status along with one or more
four-character boot error codes on the system console. Example 2-6 demonstrates a
system’s possible response to an improper boot path.
Example 2-6. A System’s Response to an Improper Boot Path
GSP> tc