module path?

What's the official way to boot an alternate kernel these days?

I upgraded the kernel sources and installed the resulting kernel and
*.ko in /boot/kernel.test/

I then booted, broke into the loader, and told it to load
/boot/kernel.test/kernel.  When doing this, I expected that the module
path would get set so that /boot/kernel.test was first.  Nope.
It auto-loaded /boot/kernel/acpi.ko.  Then there was an
earth-shattering kaboom :-(

Is there a way to boot an alternate kernel which sets the module path
for you?

Thanks,

Drew

FreeBSD/i386 bootstrap loader, Revision 1.1
(gallatin_at_shout, Fri Apr  4 09:41:26 EST 2003)
Loading /boot/defaults/loader.conf
/boot/kernel/kernel text=0x27010c data=0x3bb64+0x3f870
syms=[0x4+0x36560+0x4+0x422cb]

Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/boot/kernel/kernel] in 9 seconds...

Type '?' for a list of commands, 'help' for more detailed help.
OK unload
OK load kernel.test
can't find 'kernel.test'
OK load /boot/kernel.test/kernel
/boot/kernel.test/kernel text=0x3ed2f8 data=0x5b5ac+0x77848
syms=[0x4+0x4ee50+0x4+\
0x5ed77]
OK boot
/boot/kernel/acpi.ko text=0x39d74 data=0x19d8+0xb28
syms=[0x4+0x5800+0x4+0x74f]|
Copyright (c) 1992-2003 The FreeBSD Project.
<...>
 io3 (APIC): apic id: 11, version: 0x000f0011, at 0xfec03000
Pentium Pro MTRR support enabled


Fatal trap 12: page fault while in kernel mode