62 lines
1.8 KiB
ReStructuredText
62 lines
1.8 KiB
ReStructuredText
Preparing the Boot Device
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-------------------------
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Prepare a USB flash drive to boot the Zephyr application image on
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a board.
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#. Format the USB flash drive as FAT32.
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On Windows, open ``File Explorer``, and right-click on the USB flash drive.
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Select ``Format...``. Make sure in ``File System``, ``FAT32`` is selected.
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Click on the ``Format`` button and wait for it to finish.
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On Linux, graphical utilities such as ``gparted`` can be used to format
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the USB flash drive as FAT32. Alternatively, under terminal, find out
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the corresponding device node for the USB flash drive (for example,
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``/dev/sdd``). Execute the following command:
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.. code-block:: console
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$ mkfs.vfat -F 32 <device-node>
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.. important::
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Make sure the device node is the actual device node for
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the USB flash drive. Or else you may erase other storage devices
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on your system, and will render the system unusable afterwards.
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#. Copy the Zephyr EFI image file :file:`zephyr/zephyr.efi` to the USB drive.
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Booting Zephyr on a board
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-------------------------
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Boot the board to the EFI shell with USB flash drive connected.
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#. Insert the prepared boot device (USB flash drive) into the board.
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#. Connect the board to the host system using the serial cable and
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configure your host system to watch for serial data. See board's
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website for more information.
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.. note::
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Use a baud rate of 115200.
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#. Power on the board.
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#. When the following output appears, press :kbd:`F7`:
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.. code-block:: console
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Press <DEL> or <ESC> to enter setup.
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#. From the menu that appears, select the menu entry that describes
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that particular EFI shell.
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#. From the EFI shell select Zephyr EFI image to boot.
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.. code-block:: console
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Shell> fs0:zephyr.efi
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#. When the boot process completes, you have finished booting the
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Zephyr application image.
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