At times you may need to boot the system; for example, if you change the system's configuration or need to recover the operating system and software, you might need to boot your system.
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  | NOTE: 
Keep in mind that these tasks should be performed only by system management 
trained personnel or a Hewlett-Packard Service Representative as these 
procedures may result in 
loss of user data if performed inappropriately.
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Examples given are representative of booting up from the disk drive (Primary Boot Path) and booting up from a tape (Alternate Boot Path).
After you power on the system, a screen similar to the following appears on the console screen:
Figure 4-7 Initial Menu
   ---------------------------------------------------------------------
   PDC - Processor Dependent Code  - Version x.x
   (c) Copyright 1990-1993, Hewlett-Packard Company, All rights reserved
   ----------------------------------------------------------------------
   0 Bytes of memory configured an tested.
   Primary boot path:    0/0/0/0/0/0/0.0.0.0.0.0.0  (dec)
   Alternate boot path:  0/0/0/0/0/0/0.0.0.0.0.0.0  (dec)
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This screen is followed by the Main Menu.
Figure 4-8 Main Menu
 --Main Menu-----------------------------------------------------
  Command                       Description
  -------                       -----------
  BOot [PRI|ALT|<path>]         Boot from specified path
  PAth [PRI|ALT|CON][<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 a menu or command
  RESET                         Restart the system
 ----
  Main Menu: Enter command or menu >
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Booting from the Alternate Path | 
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If you need to boot from tape, do the following at the Main Menu prompt:
   Main Menu: Enter command or menu > BO ALT Return
   Interact with IPL (Y or N)?> y Return
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The system responds with a screen similar to the following:
   Booting...
   Boot IO Dependent Code (IODC) revision 4
   .
   .
   .
   ISL>
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