Technical data

Boot and Reset Overview for nPartitions
Boot Process for nPartitions, Cells, and HP-UX
HP System Partitions Guide: Administration for nPartitions—rp7410
EMSP—[e-mail]
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6. Boot Console Handler (BCH)
The BCH interface provides the main method for interacting with a
partition during its boot process.
BCH runs on top of PDC, and it provides menus for getting partition
status, for configuring partition boot settings, and for booting HP-UX
and rebooting the partition.
One processor on the partition’s core cell runs BCH and all other
processors in the partition are idle while the BCH interface is
available.
An nPartition can immediately proceed past BCH to boot HP-UX
when the partition’s boot paths are set and boot actions for the paths
are configured to automatically boot.
7. Initial System Loader (ISL) and Secondary System
Loader (hpux)
In most situations you do not need to use the ISL and hpux interfaces.
However, when using the BCH interface’s BOOT command you can
select to stop at the ISL prompt to perform more detailed booting
tasks.
For example, you can use the ISL interface to boot HP-UX in
single-user or LVM-maintenance mode, or to boot an HP-UX kernel
other than /stand/vmunix.
8. HP-UX Operating System
The HP-UX operating system boots on a partition after ISL and the
Secondary System Loader (hpux) specify which kernel is to be booted.
By default, and in most situations, the /stand/vmunix kernel is
selected.
For example, when you configure boot paths and boot actions to
automatically boot HP-UX, the ISL and hpux loaders specify that the
/stand/vmunix kernel is booted.
HP Restricted / DRAFT
DRAFT NOV 2001