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.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
.. |yocto-codename| replace:: whinlatter
.. |yocto-ver| replace:: 5.3
.. Note: anchors id below cannot contain substitutions so replace them with the
value of |yocto-ver| above.
Release |yocto-ver| (|yocto-codename|)
======================================
Migration notes for |yocto-ver| (|yocto-codename|)
--------------------------------------------------
This section provides migration information for moving to the Yocto
Project |yocto-ver| Release (codename "|yocto-codename|") from the prior release.
Supported kernel versions
~~~~~~~~~~~~~~~~~~~~~~~~~
The :term:`OLDEST_KERNEL` setting is XXX in this release, meaning that
out the box, older kernels are not supported. See :ref:`4.3 migration notes
<migration-4.3-supported-kernel-versions>` for details.
Supported distributions
~~~~~~~~~~~~~~~~~~~~~~~
Compared to the previous releases, running BitBake is supported on new
GNU/Linux distributions:
- XXX
On the other hand, some earlier distributions are no longer supported:
- XXX
See :ref:`all supported distributions <system-requirements-supported-distros>`.
Rust language changes
~~~~~~~~~~~~~~~~~~~~~
systemd changes
~~~~~~~~~~~~~~~
Recipe changes
~~~~~~~~~~~~~~
Removed variables
~~~~~~~~~~~~~~~~~
The following variables have been removed:
Removed recipes
~~~~~~~~~~~~~~~
The following recipes have been removed in this release:
Removed classes
~~~~~~~~~~~~~~~
The following classes have been removed in this release:
- ``kernel-fitimage.bbclass``: the class has been replaced by the
:ref:`ref-classes-kernel-fit-image` class. The new implementation resolves
the long-standing :yocto_bugs:`bug 12912</show_bug.cgi?id=12912>`.
If you are using the kernel FIT image support, you will need to:
#. Make sure to include ``kernel-fit-extra-artifacts`` in your :term:`KERNEL_CLASSES`
variable to ensure the required files are exposed to the :term:`DEPLOY_DIR_IMAGE`
directory::
KERNEL_CLASSES += "kernel-fit-extra-artifacts"
#. Use the specific FIT image recipe rather than the base kernel recipe.
For example, instead of::
bitbake linux-yocto
the FIT image is now build by::
bitbake linux-yocto-fitimage
For custom kernel recipes, creating a corresponding custom FIT image recipe
is usually a good approach.
#. If a FIT image is used as a replacement for the kernel image in the root
filesystem, add the following configuration to your machine configuration
file::
# Create and deploy the vmlinux artifact which gets included into the FIT image
KERNEL_CLASSES += "kernel-fit-extra-artifacts"
# Do not install the kernel image package
RRECOMMENDS:${KERNEL_PACKAGE_NAME}-base = ""
# Install the FIT image package
MACHINE_ESSENTIAL_EXTRA_RDEPENDS += "linux-yocto-fitimage"
# Configure the image.bbclass to depend on the FIT image instead of only
# the kernel to ensure the FIT image is built and deployed with the image
KERNEL_DEPLOY_DEPEND = "linux-yocto-fitimage:do_deploy"
See the :ref:`ref-classes-kernel-fit-image` section for more information.
Removed features
~~~~~~~~~~~~~~~~
The following features have been removed in this release:
Miscellaneous changes
~~~~~~~~~~~~~~~~~~~~~
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