[syslinux] PXE over HTTP instead of TFTP - flip flopping OS boots

[John Studarus]

Is there a way to boot PXELINUX 100% over HTTP instead of TFTP?  I can
pull over pxelinux.0 via HTTP (DHCP config) but all the config files
are pulled over via TFTP.

DHCPD config file example:

filename "pxelinux.0" ; # boots via TFTP
filename "http://10.1.1.10/pxelinux.0"  # boots via HTTP

My goal is to alternate booting between Linux and Memtest for some
hardware stress testing.  On the webserver I want to generate the
config file and send it back on the fly via HTTP to decide which OS to
boot.  I can't do this via TFTP.

Any thoughts?

Thanks,

John