netboot.xyz/boot/openbsd.ipxe

#!ipxe

# OpenBSD Operating System
# http://www.openbsd.org

:openbsd_menu
menu Please pick an OpenBSD version
item 5.7 OpenBSD 5.7
item 5.6 OpenBSD 5.6
choose ver || goto openbsd_exit

iseq ${ver} 5.7 && set image_ver 57 ||
iseq ${ver} 5.6 && set image_ver 56 ||

iseq ${arch} x86_64 && goto openbsd_x64 ||
set openbsd_arch i386
goto boot_openbsd

:openbsd_x64
set openbsd_arch amd64
goto boot_openbsd

:boot_openbsd
set src http://ftp.openbsd.org/pub/OpenBSD/${ver}/${openbsd_arch}/install${image_ver}.iso
imgfree
initrd ${src}
chain ${memdisk} iso raw
exit

:openbsd_exit
clear menu
chain bsd.ipxe