suprematis

Add the following chunk to your existing ISC dhcpd.conf file.

if exists user-class and ( option user-class = "iPXE" ) {
    filename "http://boot.smidsrod.lan/boot.ipxe";
}
else {
    filename "undionly.kpxe";
}

(or see https://gist.github.com/4008017 for a more elaborate setup

suprematis

Configure minicom with minicom -s and enter the “File transfer protocols” section. You can add a section there called “binary”, point it at your file, and specify:

Field	Value
Name	Binary
Program	bin-xfer -o %l
Name	Y
U/D	U
FullScr	Y