HP 744 Hardware User Manual page 126

A-10
The Boot Console Interface
Booting Your Workstation
• The Initial System Loader (ISL) is the program that actually controls the
loading of the operating system. By interacting with ISL, you can choose
to load an alternate version of the HP-UX operating system. If you wish
to interact with the ISL before booting your workstation, follow the direc-
tions in "Accessing the Boot Console Interface" earlier in this chapter,
and then type the following at the prompt:
Main Menu: Enter command > boot device
You are prompted:
Interact with ISL (Y,N,Q)>
Answering quit (q) aborts the boot and returns you to the boot console
handler.
Answering no (n) continues the boot sequence with the device specified
from the main menu prompt.
Answering yes (y) causes the ISL to be loaded from the specified device.
After a short time, the following prompt appears on your screen:
ISL>
For example, if the usual kernel (/stand/vmunix) on your root disk (fwscsi.6.0)
has become corrupted, and you wish to boot your workstation from the backup
kernel (/stand/vmunix.prev), type the following at the ISL> prompt:
ISL> hpux /stand/vmunix.prev
To quit out of the ISL without booting, you must power cycle to board computer.
• If you do not know which media in your file systems have bootable oper-
ating systems, you can find them with the search IPL command. See the
section "Searching for Bootable Media".