Installing and Managing HP-UX Virtual Partitions (A.02.01)

How vPars Works

Boot Sequence

Chapter 2 39

Boot Sequence

NOTE This section describes a manual boot sequence to help explain how vPars

impacts the boot process, but you can continue to use an autoboot

sequence to boot all partitions. See “Autobooting the Monitor and All

Virtual Partitions” on page 127.

Boot Sequence: Quick Reference

On a server without vPars, a simpliﬁed boot sequence is:

Adding vPars adds the monitor layer, so now hpux loads the monitor and

then the monitor boots the kernels of the virtual partitions. The boot

sequence becomes

Boot Sequence: The Details

With or without vPars, the ﬁrmware loads and launches ISL.

ISL>

In a server without vPars, at the ISL prompt, the secondary system

loader hpux loads the kernel /stand/vmunix:

ISL> hpux /stand/vmunix

1. ISL (Initial System Loader)

2. hpux (secondary system loader)

3. /stand/vmunix (kernel)

1. ISL

2. hpux

3. /stand/vpmon (vPars monitor and partition database)

4. /stand/vmunix (kernels of the virtual partitions)