Operating System Boot and Shutdown
Booting HP-UX
Appendix A
182
Single-User Mode HP-UX Booting
You can boot HP-UX in single-user mode by using any one of the following procedures:
• “Single-User Mode HP-UX Booting [BCH Menu]” on page 182
• “Single-User Mode HP-UX Booting [EFI Shell]” on page 183
Single-User Mode HP-UX Booting [BCH Menu]
From the BCH Menu, you can boot HP-UX in single-user mode by issuing the BOOT command,
stopping at the ISL interface, and issuing hpux loader options. The BCH Menu is available only on
HP 9000 servers.
Step 1. Access the BCH Main Menu for the nPartition on which you want to boot HP-UX in single-user
mode.
Login to the service processor (MP or GSP) and enter CO to access the Console list. Select the
nPartition console. When accessing the console, confirm that you are at the BCH Main Menu (the
Main Menu: Enter command or menu> prompt). If at a BCH menu other than the Main Menu,
then enter MA to return to the BCH Main Menu.
Step 2. Boot the desired device using the BOOT command at the BCH interface, and specify that the
nPartition stop at the ISL prompt prior to booting (reply y to the “stop at the ISL prompt” question).
Main Menu: Enter command or menu > BOOT 0/0/2/0/0.13
BCH Directed Boot Path: 0/0/2/0/0.13
Do you wish to stop at the ISL prompt prior to booting? (y/n) >> y
Initializing boot Device.
....
ISL Revision A.00.42 JUN 19, 1999
ISL>
Step 3. From the ISL prompt, issue the appropriate Secondary System Loader (hpux) command to boot the
HP-UX kernel in the desired mode.
Use the hpux loader to specify the boot mode options and to specify which kernel (such as:
/stand/vmunix) to boot on the nPartition.
• To boot HP-UX in single-user mode:
ISL> hpux -is boot /stand/vmunix
• To boot HP-UX at the default run level:
ISL> hpux boot /stand/vmunix
To exit the ISL prompt and return to the BCH interface, issue the EXIT command instead of
specifying one of the above hpux loader commands.
Refer to the hpux (1M) manpage for a detailed list of hpux loader options.
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