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+.. SPDX-License-Identifier: CC-BY-2.0-UK
+
+**********************
+Kernel Development FAQ
+**********************
+
+.. _kernel-dev-faq-section:
+
+Common Questions and Solutions
+==============================
+
+The following lists some solutions for common questions.
+
+How do I use my own Linux kernel ``.config`` file?
+--------------------------------------------------
+
+Refer to the
+":ref:`kernel-dev/kernel-dev-common:changing the configuration`"
+section for information.
+
+How do I create configuration fragments?
+----------------------------------------
+
+A: Refer to the
+":ref:`kernel-dev/kernel-dev-common:creating configuration fragments`"
+section for information.
+
+How do I use my own Linux kernel sources?
+-----------------------------------------
+
+Refer to the
+":ref:`kernel-dev/kernel-dev-common:working with your own sources`"
+section for information.
+
+How do I install/not-install the kernel image on the rootfs?
+------------------------------------------------------------
+
+The kernel image (e.g. ``vmlinuz``) is provided by the
+``kernel-image`` package. Image recipes depend on ``kernel-base``. To
+specify whether or not the kernel image is installed in the generated
+root filesystem, override ``RDEPENDS_kernel-base`` to include or not
+include "kernel-image". See the
+":ref:`dev-manual/dev-manual-common-tasks:using .bbappend files in your layer`"
+section in the
+Yocto Project Development Tasks Manual for information on how to use an
+append file to override metadata.
+
+How do I install a specific kernel module?
+------------------------------------------
+
+Linux kernel modules are packaged individually. To ensure a
+specific kernel module is included in an image, include it in the
+appropriate machine
+:term:`RRECOMMENDS` variable.
+These other variables are useful for installing specific modules:
+:term:`MACHINE_ESSENTIAL_EXTRA_RDEPENDS`
+:term:`MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS`
+:term:`MACHINE_EXTRA_RDEPENDS`
+:term:`MACHINE_EXTRA_RRECOMMENDS`
+For example, set the following in the ``qemux86.conf`` file to include
+the ``ab123`` kernel modules with images built for the ``qemux86``
+machine:
+::
+
+   MACHINE_EXTRA_RRECOMMENDS += "kernel-module-ab123"
+
+For more
+information, see the "`Incorporating Out-of-Tree
+Modules <#incorporating-out-of-tree-modules>`__" section.
+
+How do I change the Linux kernel command line?
+----------------------------------------------
+
+The Linux kernel command line is
+typically specified in the machine config using the ``APPEND`` variable.
+For example, you can add some helpful debug information doing the
+following:
+::
+
+   APPEND += "printk.time=y initcall_debug debug"
+