FreeBDS installation process @cloudatcost VPS provider

gistfile1.txt

For example, we need two VMs in the same network:
104.1.1.5 - debian linux
104.1.1.6 - host, where we want to install FreeBSD
00:50:66:be:70:c9 - ethernet address, where we installing FreeBSD

Network:
104.1.1.0 - our network
255.255.255.0 - our network mask
104.1.1.255 - our network broadcast address
104.1.1.1 - our network gateway

The first step to installing FreeBSD via netboot is to acquire FreeBSD. We'll be using the bootonly-iso, this can be fetched at your nearest ftp.
Download the bootonly-iso:
fetch ftp://ftp.freebsd.org/pub/FreeBSD/releases/ISO-IMAGES/10.1/FreeBSD-10.1-RELEASE-amd64-bootonly.iso

Mount the iso-image and copy the contents to some location:
mount -o loop FreeBSD-10.1-RELEASE-amd64-bootonly.iso /mnt
mkdir /pxeboot
cp -R /mnt/ /pxeboot
umount /mnt

Configure nfs root:
echo '104.1.1.5:/tftpboot / nfs ro 0 0' >> /pxeboot/etc/fstab
and dns:
echo 'nameserver 8.8.8.8' >> /pxeboot/etc/resolv.conf

Install dhcp and tftp servers at your cloudatcost server like described in this manual: https://www.debian.org/releases/stable/i386/ch04s05.html.en

Install nfs-kernel-server and portmap packages at your cloudatcost server.

Make /tftpboot available via nfs:
echo "/tftpboot 10.1.1.0/255.255.255.0(r0,no_root_squash,subtree_check)" >> /etc/exports

Write your own /etc/dhcpd/dhcpd.conf:
===
option domain-name "example.net";
option domain-name-servers 8.8.8.8;
option subnet-mask 255.255.255.0;
default-lease-time 1440;
max-lease-time 7200;
ddns-update-style none;

server-name "bootp.example.net";
server-identifier 104.1.1.5;
next-server 104.1.1.5;

allow booting;
allow bootp;

subnet 104.1.1.0 netmask 255.255.255.0 {
option broadcast-address 104.1.1.255;
option routers 104.1.1.1;

pool {
        range 104.1.1.6;
        deny unknown-clients;
    }
}

host freebsdhost {
  filename "/tftpboot/boot/pxeboot";
  server-name "freebsd.example.net";
  next-server 104.1.1.5;
  option root-path "/tftpboot";
  hardware ethernet 00:50:66:be:70:c9;
  fixed-address 104.1.1.6;
}
===

and /etc/default/tftpd-hpa:
===
TFTP_USERNAME="tftp"
TFTP_DIRECTORY="/tftpboot"
TFTP_ADDRESS="0.0.0.0:69"
===

Restart nfs, dhcp and tftp servers.

Open the Console from your panel and restart the destination host, sending Ctrl+Alt+Del by the button in the console window or by the reboot command in the command line. While boot process, press F12 key, then select Network boot.