{{tag>[linux uefi pxe]}}
=====CentOS 7 - UEFI PXE server=====
Installs a UEFI PXE server with Arch Linux installer and UEFI shell boot options.

  * Install prerequisites:<code>yum install tftp-server dhcp xinetd grub2-efi grub2-efi-modules</code>
  * Configure DHCPd ''/etc/dhcp/dhcpd.conf''<code>
subnet 10.10.10.0 netmask 255.255.255.0 {
  range 10.10.10.200 10.10.10.250;
  option domain-name "<domain>";
  option domain-name-servers <nameserver1>, <nameserver2>;
  option ntp-servers <ntp1>, <ntp2>;
  option routers 10.10.10.1;
  next-server <this_pxeserver>;
  filename "/boot/grub/x86_64-efi/core.efi";

  default-lease-time 600;
  max-lease-time 7200;
}</code>
  * Enable and start DHCPd:<code>systemctl enable dhcpd
systemctl start dhcpd</code>
  * Configure the firewall:<code>
firewall-cmd --zone public --add-service=dhcp --permanent
firewall-cmd --zone public --add-service=tftp --permanent
firewall-cmd --zone public --add-service=http --permanent
firewall-cmd --reload</code>
  * Configure xinetd ''/etc/xinetd.d/tftp''<code>	disable			= no</code>
  * Enable and start xinetd:<code>systemctl enable xinetd
systemctl start xinetd</code>
  * Create grub configuration, this is een Arch linux install example:<code>
mkdir -p /var/lib/tftpboot/boot/grub/
vi /var/lib/tftpboot/boot/grub/grub.cfg</code><code>set timeout=5

menuentry 'archlinux-2017.07.01-x86_64' --class os {
     insmod all_video

     echo 'Network config:'
     net_ls_cards
     net_ls_addr
     net_ls_routes

     set root=http,<this_pxeserver>
     
     echo 'Loading Linux...'
     linuxefi /arch/boot/x86_64/vmlinuz archisobasedir=arch archiso_http_srv=http://<this_pxeserver>/ archisobasedir=arch ip=:::::eth0:dhcp

     echo 'Loading Intel micro code, initrd...'
     initrdefi /arch/boot/intel_ucode.img /arch/boot/x86_64/archiso.img
}

menuentry 'UEFI Shell' {
  chainloader ($root)/boot/uefishell/Shell.efi
}

</code>
  * Create network bootable grub:<code>grub2-mknetdir --net-directory=/var/lib/tftpboot --subdir=/boot/grub -d /usr/lib/grub/x86_64-efi/</code>
  * Add Arch ISO:<code>curl -O http://ftp.nluug.nl/os/Linux/distr/archlinux/iso/2017.07.01/archlinux-2017.07.01-x86_64.iso
mount archlinux-2017.07.01-x86_64.iso /mnt
cp -R /mnt/* /var/www/html
</code>
  * Add UEFI Shell:<code>
mkdir -p /var/lib/tftpboot/boot/uefishell
curl -OL https://github.com/tianocore/edk2/raw/master/ShellBinPkg/UefiShell/X64/Shell.efi
</code>