Boot Sequence: Quick Reference |
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On a computer without vPars, a simplified boot sequence is:
1. ISL | (Initial System Loader) |
2. hpux | (secondary system loader) |
3. /stand/vmunix | (kernel) |
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
1. ISL | |
2. hpux | |
3. /stand/vpmon | (vPars monitor and partition database) |
4. /stand/vmunix | (kernels of the virtual partitions) |
Boot Sequence: The Details |
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With or without vPars, the firmware loads and launches ISL.
ISL>
In a computer without vPars, at the ISL prompt, the secondary
system loader hpux loads the kernel /stand/vmunix:
ISL> hpux /stand/vmunix
However, in a computer with vPars, at the ISL prompt, the
secondary system loader hpux loads the
vPars monitor /stand/vpmon:
ISL> hpux /stand/vpmon
The monitor loads the partition database (the default is /stand/vpdb) and internally creates (but does not boot) each virtual
partition according to the resource assignments in the 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 monitor command vparload. For example, to launch the virtual partition named szilva1:
MON> vparload -p szilva1
In this example, the vPars monitor would load the virtual
partition szilva1 and launch the kernel from the boot device specified
for szilva1. (The boot device is assigned when the virtual partition
is created and is recorded in the monitor database.)
HP-UX is now booted on the virtual partition szilva1.
Once a partition is running, you will be at the virtual console
of a partition. Subsequent virtual partitions can be booted using
the vPars command vparboot at the UNIX shell prompt of szilva1.
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