HP-UX Virtual Partitions Administrator Guide (includes A.05.08) (5900-1312, March 2011)

For more information on vparefiutil and all the possible options, see the manpage
vparefiutil(1M).
CAUTION: It is recommended to use the documented procedure of using vparboot -I to create
the virtual partitions so that users do not have to use vparload -E. For information on the vPars
Monitor command vparload, see the vPars Monitor manpage vpmon(5).
vparload -E works in a trial and error fashion, meaning you may have to serially attempt
different disk indices. If there are multiple boot disks belonging to a virtual partition, booting with
vparload -E is easier if the EFI signature of the desired boot disk is known.
Attempting to boot from an incorrect boot disk may result in an ungraceful shutdown or early panic
with the message "root already mounted" if another OS instance is already booted from that boot
disk.
130 vPars Monitor and Shell Commands