Technical data

Booting and Resetting nPartitions

Conﬁguring Boot Paths and Boot Actions

HP System Partitions Guide: Administration for nPartitions, rev 5.1

228

Conﬁguring Boot Paths and Boot Actions

You can conﬁgure each nPartition’s boot paths (device paths for booting

HP-UX) and boot actions (preferred automatic boot behavior) by using

the following procedures:

• Conﬁguring Boot Paths and Actions [BCH] on page 230

This procedure (BCH Main menu PATH command, and

Conﬁguration menu PATHFLAGS command) conﬁgures an

nPartition’s boot paths and boot actions (path ﬂags) through its BCH

interface.

• Conﬁguring Boot Paths and Actions [HP-UX] on page 231

This procedure (parmodify -p#... and setboot... commands) sets

nPartition boot path variables from HP-UX and enables you to check

and set the local nPartition’s PRI boot action (the PRI path ﬂag).

By conﬁguring boot paths and boot actions for an nPartition, you can set

the nPartition to automatically boot from a primary source or, if the

primary source fails, from backup devices.

Each nPartition’s boot device paths list the hardware paths of devices

for booting HP-UX on the nPartition.

The boot paths are:

• PRI—Primary boot path.

• HAA—High-availability alternate boot path, typically a mirror of the

primary root volume.

• ALT—Alternate boot path. Typically used for install or recovery

media (such as DAT or CD-ROM drive).

Each nPartition also has a set of boot actions (path ﬂags), which

specify the default actions to be automatically performed when the

nPartition boots to the BCH interface. Each of the three boot paths (PRI,

HAA, and ALT) has its own path ﬂag setting that deﬁnes its boot action.

The order in which an nPartition’s boot actions are attempted is: PRI

boot action, then HAA boot action (if necessary), and ﬁnally ALT boot

action (if necessary).

The boot actions (path ﬂag settings) for each boot path are: