HP-UX System Administrator's Guide: Routine Management Tasks HP-UX 11i v3 (B3921-90023, September 2010)

Booting from an Alternate Boot Device
You can boot from an alternate device in following ways. If your system is set up to
automatically boot you will need to override the autoboot sequence by hitting any key
on the console keyboard during the autoboot delay (time-out) period.
□ If the alternate device from which you want to boot is listed in the boot options
menu (the main EFI Boot Manager menu), use the arrow keys to highlight the
entry for the alternate device and press Enter on the keyboard to boot from that
device.
□ If the alternate device from which you want to boot is not listed in the boot options
menu:
1. Select “EFI Shell [Built-in]” from the boot options menu to run the
EFI shell.
2. Enter map at the EFI shell prompt to list bootable devices on your system.
The devices will be listed. Look for entries that begin with fs#: (where # is
a number such as 0, 1, 2, 3, etc.).
If the map command shows a lot of devices you can use the -b option to make
it show the output one screen at a time.
3. Determine which entry maps to the device from which you are trying to boot,
and enter the fs#: name at the shell prompt.
For example, if the entry for the device you want is tagged as “fs0:”, enter
fs0: at the shell prompt:
Shell> fs0:
The device associated with entry fs0: is now the selected boot device. The
EFI Shell prompt will change to reflect this.
4. Enter hpux to start the boot loader. The boot loader (hpux.efi) will now
run and use the AUTO file on the selected device to determine which kernel file
to use.
42 Booting and Shutdown