HP-UX Virtual Partitions Administrator's Guide (includes A.04.06 and A.05.04)

NOTE: For Superdome and other nPartitionable servers, you must use the boot device path
"path flags" to set automatic booting past the BCH for an nPartition. See the manual HP System
Partitions Guide for more information, including the proper configuration of paths for an nPartition.
When booting multiple virtual partitions automatically, the sequence for booting is not
deterministic, and booting a sequence of virtual partitions automatically is not supported. If
booting a sequence is required, the sequence of virtual partitions needs to be booted manually
(one by one). For more information on booting a virtual partition, see “Booting a Virtual Partition”
(page 154).
When booting multiple virtual partitions automatically, there is no way to tell which virtual
partition will be active with the console after the partitions have booted.
All changes to stable storage can only be performed at the BCH> prompt. See “System-wide stable
storage and the setboot command” (page 23).
If you need to reboot the hard partition as part of the process to access the BCH>, see “Shutting
Down or Rebooting the nPartition (Or Rebooting the vPars Monitor)” (page 156).
For information on accessing and using the BCH commands, see your hardware manual.
Single-User Mode
It is occasionally necessary to boot HP-UX into single-user mode to diagnose issues with
networking or other components.
NOTE: Although you can boot a virtual partition into single-user mode to diagnosis an OS
problem, once you are in single-user mode, you should not use vpar* commands in single-user
mode. Reboot the target virtual partition and return to multi-user mode before using the vpar*
commands.
On a non-vPars server, you would boot a system in to single-user mode by using the -is option
at the ISL prompt:
ISL> hpux -is
On a vPars server, you can boot a virtual partition into single-user mode either at the vPars
Monitor prompt or at the HP-UX shell prompt of a running partition.
For example, if we wanted to boot winona2 into single user mode:
From MON>
From the vPars Monitor prompt, specify the -is option as an argument to vparload.
MON> vparload -p winona2 -o "-is"
From HP-UX shell prompt
From the HP-UX shell prompt of another virtual partition, specify the -o option with the
vparboot command:
winona1# vparboot -p winona2 -o "-is"
Example: A Hung Partition
If you wish to boot a virtual partition using vparboot into single-user mode, it must be in the
down state. If you find a virtual partition is instead in the hung state, perform the following before
executing the vparboot:
166 vPars Monitor and Shell Commands