HP-UX Virtual Partitions Administrator's Guide (includes A.03.05 and A.04.05)

To update the EFI path of a boot disk in the vPars database (for example, after creating a boot
disk mirror), execute vparefiutil -u (-u for update) on each virtual partition. Other examples
of when you should use vparefiutil include:
For a specific HP-UX hardware path, if there is no EFI path mapping, the vparboot and
vparload commands will fail with the following error message:
Primary boot path not found.
Internal error in setting up vPars variables.
"vpar" load failed.
For a specific HP-UX hardware path, if the EFI path mapping is stale or not up to date, then
booting from the disk will fail with an error message similar to the following:
Start of HP-UX HA Alternate Boot: 1/0/0/2/0.6.0 failed:
Not Found
vparefiutil without any options can be used to display the current hardware to EFI path
mappings.
EFI Boot Disk Paths, including Disk Mirrors, and vparefiutil (Integrity only) 123