Boot Sequence: Quick Reference |
 |
On a server without vPars, a simplified boot sequence
is as follows.
PA-RISC | Integrity |
1. ISL | (Initial System Loader) | 1. EFI | (Extensible
Firmware Interface) |
2. hpux | (secondary system loader) | 2. hpux.efi | (HP-UX boot loader) |
3. /stand/vmunix | (kernel) | 3. /stand/vmunix | |
Adding vPars adds the vPars Monitor layer, so
now hpux(for Integrity, hpux.efi) loads the vPars Monitor. Then the vPars Monitor boots the kernels
of the virtual partitions. The boot sequence becomes the following.
1. ISL or EFI | (firmware) |
2. hpux or hpux.efi |
3. /stand/vpmon | (vPars Monitor and partition
database) |
4. /stand/vmunix | (kernels of the virtual partitions) |
Boot Sequence: The Details |
|
With or without vPars, the firmware loads and
launches ISL or EFI.
PA-RISC | Integrity |
| ISL> | Shell> fs0:
fs0:\> \efi\hpux\hpux.efi |
|
In a server without vPars, from ISL or EFI, the
loader hpux or hpux.efi loads the kernel /stand/vmunix:
PA-RISC | Integrity |
ISL> hpux /stand/vmunix | HPUX> boot vmunix |
However, in a server with vPars, from the loader (hpux or hpux.efi) loads the vPars Monitor (/stand/vpmon):
PA-RISC | Integrity |
ISL> hpux /stand/vpmon | HPUX> boot vpmon |
The vPars Monitor loads the partition database
(the default is /stand/vpdb) from the same disk
that /stand/vpmon was booted. The vPars Monitor
internally creates (but does not boot) each virtual partition according
to the resource assignments in the partition database.
Next, the vPars Monitor runs in interactive mode
(when no options to /stand/vpmon are given) with
a command line interface.
MON>
To boot a kernel in a virtual partition (that
is, to launch a virtual partition), use the vPars Monitor command vparload. For example, to launch the virtual partition
named uma1:
MON> vparload -p uma1
In this example, the vPars Monitor would load
the virtual partition uma1 and launch the kernel from the boot device
specified for uma1. (The boot device is assigned when the virtual
partition is created and is recorded in the vPars Monitor database.)
HP-UX is now booted on the virtual partition uma1.
Once a virtual partition is running, you will
be at the virtual console of a virtual partition. Subsequent virtual
partitions can be booted using the vPars command vparboot at the HP-UX shell prompt of uma1. For
information on how to boot a virtual partition, see “Booting a Virtual Partition”.
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