blob: cb70e19da0c6b42a89414d2fc98ed13088494409 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
.. |yocto-codename| replace:: walnascar
.. |yocto-ver| replace:: 5.2
.. 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.
``debug-tweaks`` removed from :term:`IMAGE_FEATURES`
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The ``debug-tweaks`` image feature is now removed because it was too vague about
what it achieved: an image on which the ``root`` user can login without a
password.
To achieve the same result, the features previously added by ``debug-tweaks``
should be manually added to the :term:`IMAGE_FEATURES` variable. These are:
- ``allow-empty-password``
- ``allow-root-login``
- ``empty-root-password``
- ``post-install-logging``
Such a statement would be::
IMAGE_FEATURES += "allow-empty-password allow-root-login empty-root-password post-install-logging"
See the list of available image features in the :ref:`ref-features-image`
section of the Yocto Project Reference Manual.
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:
On the other hand, some earlier distributions are no longer supported:
See :ref:`all supported distributions <system-requirements-supported-distros>`.
Go language changes
~~~~~~~~~~~~~~~~~~~
Rust language changes
~~~~~~~~~~~~~~~~~~~~~
- Recipes inheriting the :ref:`ref-classes-cargo` do not install libraries by
default anymore. This behavior can be controlled by the
:term:`CARGO_INSTALL_LIBRARIES` variable.
systemd changes
~~~~~~~~~~~~~~~
- Support for ``split-usr`` and ``unmerged-usr`` are now removed after Systemd
was updated to version 255. This option allowed installing Systemd in a
system where directories such as ``/lib``, ``/sbin`` or ``/bin`` are *not*
merged into ``/usr``.
As a consequence, the ``systemd`` recipe no longer contains the ``usrmerge``
:term:`PACKAGECONFIG` option as it is now implied by default.
Recipe changes
~~~~~~~~~~~~~~
Removed variables
~~~~~~~~~~~~~~~~~
The following variables have been removed:
- ``PACKAGE_SNAP_LIB_SYMLINKS``: related to an unmaintained and obsolete
"micro" :term:`distro <DISTRO>`.
- ``SETUPTOOLS_INSTALL_ARGS``: obsolete and unused variable.
- ``BB_DANGLINGAPPENDS_WARNONLY``: support for only warning the user when a
``.bbappend`` file doesn't apply to the original recipe has been dropped. See
the :ref:`dev-manual/layers:Appending Other Layers Metadata With Your Layer`
section of the Yocto Project Development Tasks Manual for alternatives to
this variable.
Removed recipes
~~~~~~~~~~~~~~~
The following recipes have been removed in this release:
- ``liburi-perl``: moved to :oe_git:`meta-perl </meta-openembedded/tree/meta-perl>`.
- ``python3-isodate``: moved to :oe_git:`meta-python </meta-openembedded/tree/meta-python>`.
- ``python3-iniparse``: removed as there are no consumers of this recipe in
:oe_git:`openembedded-core </openembedded-core>` or :oe_git:`meta-openembedded </meta-openembedded>`.
Removed classes
~~~~~~~~~~~~~~~
The following classes have been removed in this release:
- ``migrate_localcount.bbclass``: obsolete class for which code was already
removed in 2012.
Miscellaneous changes
~~~~~~~~~~~~~~~~~~~~~
- :term:`ZSTD_COMPRESSION_LEVEL` is now a plain integer number instead of a dash-prefixed
command-line option (e.g. it should be set to ``3`` rather than ``-3``).
|
