Step 2 : Compile Bare-Linux
============================

.. tab-set::

   .. tab-item:: Compile Bare-Linux

        * In this program, you are going to learn


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                * How to ?


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        Topics in this section,

                * :ref:`Source code download and compilation <barelinux_rpi_3b_step5_0>`


.. _barelinux_rpi_3b_step5_0:

.. tab-set::

   .. tab-item:: Source code download and compilation

        * Install qemu-system-arm package in the build system.

        .. code-block:: c

                sudo apt-get install qemu-system-arm

        * Make sure current dir is $HOME
        
        .. code-block:: c

                $ cd $HOME

        * Download the source code from the below mentioned link.

                * `buildroot source code download <https://buildroot.org/download.html>`_

        * Unzip the downloaded tar file.

        .. code-block:: c

                $ tar -xvzf buildroot-2020.02.3.tar.gz
                
        * Change the current directory to build as mentioned below. 

        .. code-block:: c

                $ cd buildroot-2020.02.3/


        * Now from the buildroot directory add the default configurations of qemu ARM versatile in config file using the following command.

        .. code-block:: c

                $ pwd
                $HOME/buildroot-2020.02.3
                $ make qemu_arm_versatile_defconfig 

        * Run make command from buildroot directory to build the bare-linux

        .. code-block:: c

                $ make

        * Once the build is done, the final target image will be present in the following directory.

        .. code-block:: c

                buildroot-2024.02.2$ cd output/images/
                images$ ls -l
                total 11064
                -rw-r--r-- 1 test test 62914560 Jan 29 20:31 rootfs.ext2
                -rwxr-xr-x 1 test test      452 Jan 29 20:19 start-qemu.sh
                -rwxr-xr-x 1 test test     8896 Jan 29 20:19 versatile-pb.dtb
                -rw-r--r-- 1 test test  3008592 Jan 29 20:19 zImage
 


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        What is /.bashrc file?

        .. dropdown:: See Answer

                * ??