Ignite-UX Installation Booting

HP Integrity systems:

Booting from a CD/DVD

System booting from a CD/DVD is as follows:

1. Enter the commands to boot from an appropriate DVD or use the boot manager menu (if

configured).

Please consult the documentation appropriate to the system for information on how to use the

EFI or how to configure the boot manager menu.

2. The EFI reads the CD or DVD media to determine if it is an El Torito format CD or DVD (HP

Integrity systems can only boot from El Torito format CD or DVD media).

3. Invoke the bootloader from command line or use the boot manager menu to start the installation

process.

The bootloader on the CD or DVD is invoked from the EFI shell by changing partitions to the EFI

partition for the CD or DVD, and then entering install. If no other boot devices are found

before the CD or DVD is found, the EFI automatically boots via the /STARTUP.NSH EFI script on

the CD or DVD. If you change EFI partitions to the CD or DVD, the STARTUP.NSH EFI script

should automatically start the boot process.

4. The bootloader, install.efi, reads the AUTO file from the LIF. It is possible to interact with

the bootloader.

The HP Integrity installation media used to install HP-UX contains a LIF, just as with HP9000

media. However, the EFI does nothing with this LIF because its purpose is just to allow common

code to be used to install HP-UX on HP9000 and HP Integrity systems. The AUTO file contains

boot :IINSTALL; the : (colon) designates that the installation kernel IINSTALL is read from

the LIF on the boot device. Only the installation bootloader reads LIF files; the EFI does not.

5. The bootloader executes the contents of the AUTO file; however, both the installation kernel

(IINSTALL) and installation file system (IINSTALLFS) are loaded by the bootloader at the

same time before the execution of the kernel starts.

Additional tasks are not available with the HP Integrity systems bootloader as with the

secondary bootloader on HP9000 because the state of EFI is undefined once the operating

system starts running. The bootloader must load the installation kernel and file system before

passing control to the kernel. The bootloader passes the location of the loaded installation file

system to the kernel and then the kernel completes its initialization.

6. The installation continues at this stage with the kernel running init from the installation file

system loaded by the bootloader.