[syslinux] change pxe filename/prefix

[H. Peter Anvin]

Krzysztof Chojnowski wrote:
> Hello,
> 
> is it possible to overwrite 'filename' dhcp options with pxelinux
> command line arguments? I think it would be very useful when building
> complex netboot menus. If not are you planning to add it in near future?
> 

It's not currently supported.  It's on my list of things to do, but it's 
surprisingly complicated.

	-hpa