Step 3 : Build Linux Kernel
==============================

.. tab-set::

   .. tab-item:: Build Linux Kernel

        * In this program, you are going to learn


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                :column: col-lg-12 p-2
                :card: shadow

                * How to ?


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        Topics in this section,

                * :ref:`Build Linux Kernel <barelinux_qemu_rpi4b_step3_0>`


.. _barelinux_qemu_rpi4b_step3_0:

.. tab-set::

   .. tab-item:: Build Linux Kernel

        * Create a config file with cross-compilation architecture.

        .. code-block:: c

                $ ARCH=arm64 CROSS_COMPILE=/bin/aarch64-linux-gnu- make defconfig

        * Use kvm_guest config as the base config which is compatible for qemu.

        .. code-block:: c

                $ ARCH=arm64 CROSS_COMPILE=/bin/aarch64-linux-gnu- make kvm_guest.config

        * Build the kernel

        .. code-block:: c

                $ ARCH=arm64 CROSS_COMPILE=/bin/aarch64-linux-gnu- make -j8

        * Copy the image to qemu_rpi_3b directory.

        .. code-block:: c

                $ cp arch/arm64/boot/Image $HOME/qemu_rpi_3b