[syslinux] PXELINUX based kickstart query (probably OT)

[H. Peter Anvin]

Geert Stappers wrote:
> 
> What about replacing the bootsector's executable code with
> 
>      LD  AX,boot_failed_code ; assume AX holds return value
>      RTS
> 
> or something other that returns and allows a network boot?
> 

Can't be done.  Unfortunately the BIOS considers loading a boot sector 
(from floppy or from hard disk) to be "terminal" in the sense that it 
has now booted, and there is no going back.

This is one of the most unfortunate aspects of the BIOS.

	-hpa