Install CoreOS pxe boot server on Ubuntu14.04

install-coreos-pxe.sh

#!/bin/bash

# Also look at: http://askubuntu.com/questions/581772/how-to-install-and-configure-a-tftp-server-on-14-04

HOSTIP=192.168.30.31

sudo apt-get install xinetd tftpd tftp nginx -y

# may need to edit /etc/inetd.conf - last param /srv/tftpboot/ to /tftpboot/
update-inetd --enable BOOT

ufw allow 69
ufw allow 69/udp

mkdir -p /tftpboot/pxelinux.cfg/
ln -s /usr/lib/syslinux/pxelinux.0 /tftpboot/pxelinux.0

cd /tftpboot/
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe.vmlinuz
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe.vmlinuz.sig
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe_image.cpio.gz
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe_image.cpio.gz.sig

cat << EOF >/tftpboot/pxelinux.cfg/default 
default coreos
prompt 1
timeout 15

display boot.msg

label coreos
  menu default
  kernel coreos_production_pxe.vmlinuz
  append initrd=coreos_production_pxe_image.cpio.gz cloud-config-url=http://$HOSTIP/cloud-config.yml
EOF