zephyr/boards/intel/common/net_boot.rst

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Prepare Linux host
------------------
#. Install DHCP, TFTP servers. For example ``dnsmasq``
.. code-block:: console
$ sudo apt-get install dnsmasq
#. Configure DHCP server. Configuration for ``dnsmasq`` is below:
.. code-block:: console
# Only listen to this interface
interface=eno2
dhcp-range=10.1.1.20,10.1.1.30,12h
#. Configure TFTP server.
.. code-block:: console
# tftp
enable-tftp
tftp-root=/srv/tftp
dhcp-boot=zephyr.efi
``zephyr.efi`` is a Zephyr EFI binary created above.
#. Copy the Zephyr EFI image :file:`zephyr/zephyr.efi` to the
:file:`/srv/tftp` folder.
.. code-block:: console
$ cp zephyr/zephyr.efi /srv/tftp
#. TFTP root should be looking like:
.. code-block:: console
$ tree /srv/tftp
/srv/tftp
└── zephyr.efi
#. Restart ``dnsmasq`` service:
.. code-block:: console
$ sudo systemctl restart dnsmasq.service
Prepare the board for network boot
----------------------------------
#. Enable PXE network from BIOS settings.
#. Make network boot as the first boot option.
Booting the board
-----------------
#. Connect the board to the host system using the serial cable and
configure your host system to watch for serial data. See board's
website for more information.
.. note::
Use a baud rate of 115200.
#. Power on the board.
#. Verify that the board got an IP address. Run from the Linux host:
.. code-block:: console
$ journalctl -f -u dnsmasq
dnsmasq-dhcp[5386]: DHCPDISCOVER(eno2) 00:07:32:52:25:88
dnsmasq-dhcp[5386]: DHCPOFFER(eno2) 10.1.1.28 00:07:32:52:25:88
dnsmasq-dhcp[5386]: DHCPREQUEST(eno2) 10.1.1.28 00:07:32:52:25:88
dnsmasq-dhcp[5386]: DHCPACK(eno2) 10.1.1.28 00:07:32:52:25:88
#. Verify that network booting is started:
.. code-block:: console
$ journalctl -f -u dnsmasq
dnsmasq-tftp[5386]: sent /srv/tftp/zephyr.efi to 10.1.1.28
#. When the boot process completes, you have finished booting the
Zephyr application image.