HP-UX Virtual Partitions Administrator's Guide (includes A.03.04) (previously titled Installing and Managing HP-UX Virtual Partitions)

How vPars and its Components Work

EFI and Integrity Notes

Chapter 2

The default EFI settings in nPars mode will be inherited when switched to vPars mode. However, when

switching back to nPars mode, any EFI settings will be reset to the nPartition defaults, unless

otherwise noted (for example, memory granularity). This includes the primary and alternate paths

(HAA (High-Availability Alternate) is not supported). Even if you use parmodify to change the paths,

parstatus will show them as set; however, once the system is booted into nPars mode, those changes by

parmodify are not retained. For more information on switching modes, see the manpage vparenv (1M).

Also, while running in vPars mode, the EFI device path of a boot device, speciﬁcally the Monitor boot

device, can be changed when the boot device is reformatted due to an installation (either cold or

Ignite-UX). The associated EFI boot path is updated to use the new EFI device path. However,

ﬁrmware-saved EFI boot path options are not updated. If the nPartition or Monitor is rebooted, the new

EFI boot path options are discarded and replaced with the previously saved EFI boot path options, which

contain now stale EFI device paths.

The EFI boot options can be updated manually by performing the following:

1. Switch to nPars mode via the vparenv or vparconfig command.

2. Reboot the nPartition to the EFI Boot Manager.

3. Select Boot Option Maintenance Menu.

4. Select Delete Boot Option(s).

5. Select HP-UX Primary Boot and then exit.

6. Select Exit to return to the EFI Boot Manager.

7. Select EFI Shell [Built-in].

8. Launch HP-UX from the EFI shell prompt:

Shell> fs

:\> efi\hpux\hpux boot vmunix

9. Use the setboot command to set up the primary boot path with the desired boot device. This also sets

the HP-UX Primary Boot boot option with the latest EFI device path.

10. Use the vparenv command to switch to vPars mode.

11. Reboot the nPartition.

• EFI command default clear

Whenever you use the default clear command at the EFI shell, this erases vPars information that is

stored in NVRAM and the vPars monitor may not boot. To boot the monitor, you should perform the

following:

1. Change the mode to nPars and allow the system to reboot to the EFI shell:

Shell> fsN:

fsN:\> efi\hpux\vparconfig reboot nPars

2. At the EFI prompt, boot the HP-UX kernel in standalone mode:

Shell> fsN:

fsN:\> efi\hpux\hpux /stand/vmunix

The booting of the kernel will restore the vPars information in NVRAM. Now you can return to vPars

mode and reboot the Monitor.

3. To change the mode to vPars and reboot the Monitor: