[syslinux] run FreeBSD "pxeboot" from pxelinux.0?

[McMahon, Chris]

Hello, I hope this doesn't bounce again...

	I'm having trouble passing control of the PXE process from PXELINUX
to the 
FreeBSD "pxeboot" program.
	I tried invoking "pxeboot" from the PXELINUX "boot:" prompt. This
causes an error "Invalid or corrupt kernel image."  
	I named pxeboot "pxeboot.0" and tried invoking pxeboot.0 from the
PXELINUX "boot:" prompt.  (This causes an immediate reboot with no readable
messages and the second attempt causes a "TFTP server does not support the
tsize option" error message.  Very strange-- I'm using tftp-hpa.)   
	I don't see the syntax to invoke another NBP in the documentation--
has anyone here done that?
	Thanks... 
-Chris