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authorScott Rifenbark <srifenbark@gmail.com>2016-04-13 17:08:48 -0700
committerRichard Purdie <richard.purdie@linuxfoundation.org>2016-04-18 16:28:23 +0100
commite00a62c905045b57dc6e472d4a08f46cc17aaf04 (patch)
treee3e536ea424476aada878a280165eb8eb953baa6
parent02db9e6031eb27376ae2e66ab57f51c6aa7600e3 (diff)
downloadpoky-e00a62c905045b57dc6e472d4a08f46cc17aaf04.tar.gz
ref-manual: Added the migration section for 2.1
(From yocto-docs rev: ed1eec9139d8a9caf32f0cc896f651cafecece4f) Signed-off-by: Scott Rifenbark <srifenbark@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--documentation/ref-manual/migration.xml552
1 files changed, 540 insertions, 12 deletions
diff --git a/documentation/ref-manual/migration.xml b/documentation/ref-manual/migration.xml
index 670e1c1f7d..e6c0aa36b8 100644
--- a/documentation/ref-manual/migration.xml
+++ b/documentation/ref-manual/migration.xml
@@ -2447,9 +2447,10 @@
2447 </literallayout> 2447 </literallayout>
2448 </para></listitem> 2448 </para></listitem>
2449 <listitem><para> 2449 <listitem><para>
2450 <filename>d.delVar('VARNAME')</filename> and 2450 <filename>d.delVar('</filename><replaceable>varname</replaceable><filename>')</filename> and
2451 <filename>d.setVar('VARNAME', None)</filename> result 2451 <filename>d.setVar('</filename><replaceable>varname</replaceable><filename>', None)</filename>
2452 in the variable and all of its overrides being cleared out. 2452 result in the variable and all of its overrides being
2453 cleared out.
2453 Before the change, only the non-overridden values 2454 Before the change, only the non-overridden values
2454 were cleared. 2455 were cleared.
2455 </para></listitem> 2456 </para></listitem>
@@ -2734,23 +2735,550 @@
2734 Yocto Project 2.1 Release from the prior release. 2735 Yocto Project 2.1 Release from the prior release.
2735 </para> 2736 </para>
2736 2737
2737 <section id='migration-2.1-placeholder'> 2738 <section id='migration-2.1-variable-expansion-in-python-functions'>
2738 <title>Stuff to Remember When Creating this Section</title> 2739 <title>Variable Expansion in Python Functions</title>
2739 2740
2740 <para> 2741 <para>
2741 This is a note from Alexander Kanavin regarding qt4 stuff. 2742 Variable expressions, such as
2743 <filename>${</filename><replaceable>varname</replaceable><filename>}</filename>
2744 no longer expand automatically within Python functions.
2745 Suppressing expansion was done to allow Python functions to
2746 construct shell scripts or other code for situations in which you
2747 do not want such expressions expanded.
2748 For any existing code that relies on these expansions, you need to
2749 change the expansions to either expand the value of individual
2750 variables through <filename>d.getVar()</filename>.
2751 To alternatively expand more complex expressions,
2752 use <filename>d.expand()</filename>.
2753 </para>
2754 </section>
2755
2756 <section id='migration-2.1-overrides-must-now-be-lower-case'>
2757 <title>Overrides Must Now be Lower-Case</title>
2758
2759 <para>
2760 The convention for overrides has always been for them to be
2761 lower-case characters.
2762 This practice is now a requirement as BitBake's datastore now
2763 assumes lower-case characters in order to give a slight performance
2764 boost during parsing.
2765 In practical terms, this requirement means that anything that ends
2766 up in
2767 <link linkend='var-OVERRIDES'><filename>OVERRIDES</filename></link>
2768 must now appear in lower-case characters (e.g. values for
2769 <filename>MACHINE</filename>, <filename>TARGET_ARCH</filename>,
2770 <filename>DISTRO</filename>, and also recipe names if
2771 <filename>_pn-</filename><replaceable>recipename</replaceable>
2772 overrides are to be effective).
2773 </para>
2774 </section>
2775
2776 <section id='migration-2.1-expand-parameter-to-getvar-and-getvarflag-now-mandatory'>
2777 <title>Expand Parameter to <filename>getVar()</filename> and
2778 <filename>getVarFlag()</filename> is Now Mandatory</title>
2779
2780 <para>
2781 The expand parameter to <filename>getVar()</filename> and
2782 <filename>getVarFlag()</filename> previously defaulted to
2783 False if not specified.
2784 Now, however, no default exists so one must be specified.
2785 You must change any <filename>getVar()</filename> calls that
2786 do not specify the final expand parameter to calls that do specify
2787 the parameter.
2788 You can run the following <filename>sed</filename> command at the
2789 base of a layer to make this change:
2790 <literallayout class='monospaced'>
2791 sed -e 's:\(\.getVar([^,()]*\)):\1, False):g' -i `grep -ril getVar *`
2792 sed -e 's:\(\.getVarFlag([^,()]*, [^,()]*\)):\1, False):g' -i `grep -ril getVarFlag *`
2793 </literallayout>
2742 <note> 2794 <note>
2743 Qt4 recipes and classes have been removed in YP 2.1 because 2795 The reason for this change is that it prepares the way for
2744 Qt4.x has reached end of life upstream. For legacy applications 2796 changing the default to True in a future Yocto Project release.
2745 and LSB compliancy purposes Qt4 can be found in meta-qt4 2797 This future change is a much more sensible default than False.
2746 repository, and for any new development Qt5 is available at 2798 However, the change needs to be made gradually as a sudden
2747 meta-qt5 repository(provide links to both). 2799 change of the default would potentially cause side-effects
2800 that would be difficult to detect.
2748 </note> 2801 </note>
2749 </para> 2802 </para>
2750 </section> 2803 </section>
2751</section>
2752 2804
2805 <section id='migration-2.1-makefile-environment-changes'>
2806 <title>Makefile Environment Changes</title>
2807
2808 <para>
2809 <link linkend='var-EXTRA_OEMAKE'><filename>EXTRA_OEMAKE</filename></link>
2810 now defaults to "" instead of "-e MAKEFLAGS=".
2811 Setting <filename>EXTRA_OEMAKE</filename> to "-e MAKEFLAGS=" by
2812 default was a historical accident that has required many classes
2813 (e.g. <filename>autotools</filename>, <filename>module</filename>)
2814 and recipes to override this default in order to work with
2815 sensible build systems.
2816 When upgrading to the release, you must edit any recipe that
2817 relies upon this old default by either setting
2818 <filename>EXTRA_OEMAKE</filename> back to "-e MAKEFLAGS=" or by
2819 explicitly setting any required variable value overrides using
2820 <filename>EXTRA_OEMAKE</filename>, which is typically only needed
2821 when a Makefile sets a default value for a variable that is
2822 inappropriate for cross-compilation using the "=" operator rather
2823 than the "?=" operator.
2824 </para>
2825 </section>
2826
2827 <section id='migration-2.1-libexecdir-reverted-to-prefix-libexec'>
2828 <title><filename>libexecdir</filename> Reverted to <filename>${prefix}/libexec</filename></title>
2829
2830 <para>
2831 The use of <filename>${libdir}/${BPN}</filename> as
2832 <filename>libexecdir</filename> is different as compared to all
2833 other mainstream distributions, which either uses
2834 <filename>${prefix}/libexec</filename> or
2835 <filename>${libdir}</filename>.
2836 The use is also contrary to the GNU Coding Standards
2837 (i.e. <ulink url='https://www.gnu.org/prep/standards/html_node/Directory-Variables.html'></ulink>)
2838 that suggest <filename>${prefix}/libexec</filename> and also
2839 notes that any package-specific nesting should be done by the
2840 package itself.
2841 Finally, having <filename>libexecdir</filename> change between
2842 recipes makes it very difficult for different recipes to invoke
2843 binaries that have been installed into
2844 <filename>libexecdir</filename>.
2845 The Filesystem Hierarchy Standard
2846 (i.e. <ulink url='http://refspecs.linuxfoundation.org/FHS_3.0/fhs/ch04s07.html'></ulink>)
2847 now recognizes the use of <filename>${prefix}/libexec/</filename>,
2848 giving distributions the choice between
2849 <filename>${prefix}/lib</filename> or
2850 <filename>${prefix}/libexec</filename> without breaking FHS.
2851 </para>
2852 </section>
2853
2854 <section id='migration-2.1-ac-cv-sizeof-off-t-no-longer-cached-in-site-files'>
2855 <title><filename>ac_cv_sizeof_off_t</filename> is No Longer Cached in Site Files</title>
2856
2857 <para>
2858 For recipes inheriting the
2859 <link linkend='ref-classes-autotools'><filename>autotools</filename></link>
2860 class, <filename>ac_cv_sizeof_off_t</filename> is no longer cached
2861 in the site files for <filename>autoconf</filename>.
2862 The reason for this change is because the
2863 <filename>ac_cv_sizeof_off_t</filename> value is not necessarily
2864 static per architecture as was previously assumed.
2865 Rather, the value changes based on whether large file support is
2866 enabled.
2867 For most software that uses <filename>autoconf</filename>, this
2868 change should not be a problem.
2869 However, if you have a recipe that bypasses the standard
2870 <link linkend='ref-tasks-configure'><filename>do_configure</filename></link>
2871 task from the <filename>autotools</filename> class and the software
2872 the recipe is building uses a very old version of
2873 <filename>autoconf</filename>, the recipe might be incapable of
2874 determining the correct size of <filename>off_t</filename> during
2875 <filename>do_configure</filename>.
2876 </para>
2877
2878 <para>
2879 The best course of action is to patch the software as necessary
2880 to allow the default implementation from the
2881 <filename>autotools</filename> class to work such that
2882 <filename>autoreconf</filename> succeeds and produces a working
2883 configure script), and to remove the
2884 overridden <filename>do_configure</filename> task such that the
2885 default implementation does get used.
2886 </para>
2887 </section>
2888
2889 <section id='migration-2.1-image-generation-split-out-from-filesystem-generation'>
2890 <title>Image Generation is Now Split Out from Filesystem Generation</title>
2891
2892 <para>
2893 Previously, for image recipes the
2894 <link linkend='ref-tasks-rootfs'><filename>do_rootfs</filename></link>
2895 task assembled the filesystem and then from that filesystem
2896 generated images.
2897 With this Yocto Project release, image generation is split into
2898 separate
2899 <link linkend='ref-tasks-image'><filename>do_image_*</filename></link>
2900 tasks for clarity both in operation and in the code.
2901 </para>
2902
2903 <para>
2904 For most cases, this change does not present any problems.
2905 However, if you have made customizations that directly modify the
2906 <filename>do_rootfs</filename> task or that mention
2907 <filename>do_rootfs</filename>, you might need to update those
2908 changes.
2909 In particular, if you had added any tasks after
2910 <filename>do_rootfs</filename>, you should make edits so that
2911 those tasks are after the
2912 <link linkend='ref-tasks-image-complete'><filename>do_image_complete</filename></link>
2913 task rather than before the task so that the your added tasks
2914 run at the correct time.
2915 </para>
2916
2917 <para>
2918 A minor part of this restructuring is that the post-processing
2919 definitions and functions have been moved from the
2920 <link linkend='ref-classes-image'><filename>image</filename></link>
2921 class to the
2922 <link linkend='ref-classes-rootfs*'><filename>rootfs-postcommands</filename></link>
2923 class.
2924 Functionally, however, they remain unchanged.
2925 </para>
2926 </section>
2927
2928 <section id='migration-2.1-removed-recipes'>
2929 <title>Removed Recipes</title>
2930
2931 <para>
2932 The following recipes have been removed in the 2.1 release:
2933 <itemizedlist>
2934 <listitem><para><filename>gcc</filename> version 4.8:
2935 Versions 4.9 and 5.3 remain.
2936 </para></listitem>
2937 <listitem><para><filename>qt4</filename>:
2938 All support for Qt 4.x has been moved out to a separate
2939 <filename>meta-qt4</filename> layer because Qt 4 is no
2940 longer supported upstream.
2941 </para></listitem>
2942 <listitem><para><filename>x11vnc</filename>:
2943 Moved to the <filename>meta-oe</filename> layer.
2944 </para></listitem>
2945 <listitem><para><filename>linux-yocto-3.14</filename>:
2946 No longer supported.
2947 </para></listitem>
2948 <listitem><para><filename>linux-yocto-3.19</filename>:
2949 No longer supported.
2950 </para></listitem>
2951 <listitem><para><filename>libjpeg</filename>:
2952 Replaced by the <filename>libjpeg-turbo</filename> recipe.
2953 </para></listitem>
2954 <listitem><para><filename>pth</filename>:
2955 Became obsolete.
2956 </para></listitem>
2957 <listitem><para><filename>liboil</filename>:
2958 Recipe is no longer needed and has been moved to the
2959 <filename>meta-multimedia</filename> layer.
2960 </para></listitem>
2961 <listitem><para><filename>gtk-theme-torturer</filename>:
2962 Recipe is no longer needed and has been moved to the
2963 <filename>meta-gnome</filename> layer.
2964 </para></listitem>
2965 <listitem><para><filename>gnome-mime-data</filename>:
2966 Recipe is no longer needed and has been moved to the
2967 <filename>meta-gnome</filename> layer.
2968 </para></listitem>
2969 <listitem><para><filename>udev</filename>:
2970 Replaced by the <filename>eudev</filename> recipe for
2971 compatibility when using <filename>sysvinit</filename>
2972 with newer kernels.
2973 </para></listitem>
2974 <listitem><para><filename>python-pygtk</filename>:
2975 Recipe became obsolete.
2976 </para></listitem>
2977 <listitem><para><filename>adt-installer</filename>:
2978 Recipe became obsolete.
2979 See the
2980 "<link linkend='migration-2.1-adt-removed'>ADT Removed</link>"
2981 section for more information.
2982 </para></listitem>
2983 </itemizedlist>
2984 </para>
2985 </section>
2986
2987 <section id='migration-2.1-class-changes'>
2988 <title>Class Changes</title>
2753 2989
2990 <para>
2991 The following classes have changed:
2992 <itemizedlist>
2993 <listitem><para><filename>autotools_stage</filename>:
2994 Removed because the
2995 <link linkend='ref-classes-autotools'><filename>autotools</filename></link>
2996 class now provides its functionality.
2997 Recipes that inherited from
2998 <filename>autotools_stage</filename> should now inherit
2999 from <filename>autotools</filename> instead.
3000 </para></listitem>
3001 <listitem><para><filename>boot-directdisk</filename>:
3002 Merged into the
3003 <link linkend='ref-classes-image-vm'><filename>image-vm</filename></link>
3004 class.
3005 The <filename>boot-directdisk</filename> class was rarely
3006 directly used.
3007 Consequently, this change should not cause any issues.
3008 </para></listitem>
3009 <listitem><para><filename>bootimg</filename>:
3010 Merged into the
3011 <link linkend='ref-classes-image-live'><filename>image-live</filename></link>
3012 class.
3013 The <filename>bootimg</filename> class was rarely
3014 directly used.
3015 Consequently, this change should not cause any issues.
3016 </para></listitem>
3017 <listitem><para><filename>packageinfo</filename>:
3018 Removed due to its limited use by the Hob UI, which has
3019 itself been removed.
3020 </para></listitem>
3021 </itemizedlist>
3022 </para>
3023 </section>
3024
3025 <section id='migration-2.1-build-system-ui-changes'>
3026 <title>Build System User Interface Changes</title>
3027
3028 <para>
3029 The following changes have been made to the build system user
3030 interface:
3031 <itemizedlist>
3032 <listitem><para><emphasis>Hob GTK+-based UI</emphasis>:
3033 Removed because it is unmaintained and based on the
3034 outdated GTK+ 2 library.
3035 The Toaster web-based UI is much more capable and is
3036 actively maintained.
3037 See the
3038 "<ulink url='&YOCTO_DOCS_TOAST_URL;#using-the-toaster-web-interface'>Using the Toaster Web Interface</ulink>"
3039 section in the Yocto Project Toaster User Manual for more
3040 information on this interface.
3041 </para></listitem>
3042 <listitem><para><emphasis>"puccho" BitBake UI</emphasis>:
3043 Removed because is unmaintained and no longer useful.
3044 </para></listitem>
3045 </itemizedlist>
3046 </para>
3047 </section>
3048
3049 <section id='migration-2.1-adt-removed'>
3050 <title>ADT Removed</title>
3051
3052 <para>
3053 The Application Development Toolkit (ADT) has been removed
3054 because its functionality almost completely overlapped with the
3055 <ulink url='&YOCTO_DOCS_SDK_URL;#sdk-using-the-standard-sdk'>standard SDK</ulink>
3056 and the
3057 <ulink url='&YOCTO_DOCS_SDK_URL;#sdk-extensible'>extensible SDK</ulink>.
3058 For information on these SDKs and how to build and use them, see the
3059 <ulink url='&YOCTO_DOCS_SDK_URL;#sdk-intro'>Yocto Project Software Development Kit (SDK) Developer's Guide</ulink>.
3060 </para>
3061 </section>
3062
3063 <section id='migration-2.1-poky-reference-distribution-changes'>
3064 <title>Poky Reference Distribution Changes</title>
3065
3066 <para>
3067 The following changes have been made for the Poky distribution:
3068 <itemizedlist>
3069 <listitem><para>
3070 The <filename>meta-yocto</filename> layer has been renamed
3071 to <filename>meta-poky</filename> to better match its
3072 purpose, which is to provide the Poky reference
3073 distribution.
3074 The <filename>meta-yocto-bsp</filename> layer retains its
3075 original name since it provides reference machines for
3076 the Yocto Project and it is otherwise unrelated to Poky.
3077 References to <filename>meta-yocto</filename> in your
3078 <filename>conf/bblayers.conf</filename> should
3079 automatically be updated, so you should not need to change
3080 anything unless you are relying on this naming elsewhere.
3081 </para></listitem>
3082 <listitem><para>
3083 The
3084 <link linkend='ref-classes-uninative'><filename>uninative</filename></link>
3085 class is now enabled by default in Poky.
3086 This class attempts to isolate the build system from the
3087 host distribution's C library and makes re-use of native
3088 shared state artifacts across different host distributions
3089 practical.
3090 With this class enabled, a tarball containing a pre-built
3091 C library is downloaded at the start of the build.</para>
3092
3093 <para>The <filename>uninative</filename> class is enabled
3094 through the
3095 <filename>meta/conf/distro/include/yocto-uninative.inc</filename>
3096 file, which for those not using the Poky distribution, can
3097 include to easily enable the same functionality.</para>
3098
3099 <para>Alternatively, if you wish to build your own
3100 <filename>uninative</filename> tarball, you can do so by
3101 building the <filename>uninative-tarball</filename> recipe,
3102 making it available to your build machines
3103 (e.g. over HTTP/HTTPS) and setting a similar configuration
3104 as the one set by <filename>yocto-uninative.inc</filename>.
3105 </para></listitem>
3106 <listitem><para>
3107 Static library generation, for most cases, is now disabled
3108 by default in the Poky distribution.
3109 Disabling this generation saves some build time as well
3110 as the size used for build output artifacts.</para>
3111
3112 <para>Disabling this library generation is accomplished
3113 through a
3114 <filename>meta/conf/distro/include/no-static-libs.inc</filename>,
3115 which for those not using the Poky distribution can
3116 easily include to enable the same functionality.</para>
3117
3118 <para>Any recipe that needs to opt-out of having the
3119 "--disable-static" option specified on the configure
3120 command line either because it is not a supported option
3121 for the configure script or because static libraries are
3122 needed should set the following variable:
3123 <literallayout class='monospaced'>
3124 DISABLE_STATIC = ""
3125 </literallayout>
3126 </para></listitem>
3127 <listitem><para>
3128 The separate <filename>poky-tiny</filename> distribution
3129 now uses the musl C library instead of a heavily pared
3130 down <filename>glibc</filename>.
3131 Using <filename>glibc</filename> results in a smaller
3132 distribution and facilitates much greater maintainability
3133 because musl is designed to have a small footprint.</para>
3134
3135 <para>If you have used <filename>poky-tiny</filename> and
3136 have customized the <filename>glibc</filename>
3137 configuration you will need to redo those customizations
3138 with musl when upgrading to the new release.
3139 </para></listitem>
3140 </itemizedlist>
3141 </para>
3142 </section>
3143
3144 <section id='migration-2.1-packaging-changes'>
3145 <title>Packaging Changes</title>
3146
3147 <para>
3148 The following changes have been made to packaging:
3149 <itemizedlist>
3150 <listitem><para>
3151 The <filename>runuser</filename> and
3152 <filename>mountpoint</filename> binaries, which were
3153 previously in the main <filename>util-linux</filename>
3154 package, have been split out into the
3155 <filename>util-linux-runuser</filename> and
3156 <filename>util-linux-mountpoint</filename> packages,
3157 respectively.
3158 </para></listitem>
3159 <listitem><para>
3160 The <filename>python-elementtree</filename> package has
3161 been merged into the <filename>python-xml</filename>
3162 package.
3163 </para></listitem>
3164 </itemizedlist>
3165 </para>
3166 </section>
3167
3168 <section id='migration-2.1-tuning-file-changes'>
3169 <title>Tuning File Changes</title>
3170
3171 <para>
3172 The following changes have been made to the tuning files:
3173 <itemizedlist>
3174 <listitem><para>
3175 The "no-thumb-interwork" tuning feature has been dropped
3176 from the ARM tune include files.
3177 Because interworking is required for ARM EABI, attempting
3178 to disable it through a tuning feature no longer makes
3179 sense.
3180 <note>
3181 Support for ARM OABI was deprecated in gcc 4.7.
3182 </note>
3183 </para></listitem>
3184 <listitem><para>
3185 The <filename>tune-cortexm*.inc</filename> and
3186 <filename>tune-cortexr4.inc</filename> files have been
3187 removed because they are poorly tested.
3188 Until the OpenEmbedded build system officially gains
3189 support for CPUs without an MMU, these tuning files would
3190 probably be better maintained in a separate layer
3191 if needed.
3192 </para></listitem>
3193 </itemizedlist>
3194 </para>
3195 </section>
3196
3197 <section id='migration-2.1-miscellaneous-changes'>
3198 <title>Miscellaneous Changes</title>
3199
3200 <para>
3201 These additional changes exist:
3202 <itemizedlist>
3203 <listitem><para>
3204 The minimum Git version has been increased to 1.8.3.1.
3205 If your host distribution does not provide a sufficiently
3206 recent version, you can install the buildtools, which
3207 will provide it.
3208 </para></listitem>
3209 <listitem><para>
3210 The buggy and incomplete support for the RPM version 4
3211 package manager has been removed.
3212 The well-tested and maintained support for RPM version 5
3213 remains.
3214 </para></listitem>
3215 <listitem><para>
3216 The
3217 <ulink url='&YOCTO_DOCS_SDK_URL;#sdk-devtool-use-devtool-modify-to-modify-the-source-of-an-existing-component'><filename>devtool modify</filename></ulink>
3218 command now defaults to extracting the source since that
3219 is most commonly expected.
3220 The "-x" or "--extract" options are now no-ops.
3221 If you wish to provide your own existing source tree, you
3222 will now need to specify either the "-n" or
3223 "--no-extract" option when running
3224 <filename>devtool modify</filename>.
3225 </para></listitem>
3226 <listitem><para>
3227 If the formfactor for a machine is either not supplied
3228 or does not specify whether a keyboard is attached, then
3229 the default is to assume a keyboard is attached rather
3230 than assume no keyboard.
3231 <note>
3232 This change primarily affects the Sato UI.
3233 </note>
3234 </para></listitem>
3235 <listitem><para>
3236 The <filename>.debug</filename> directory packaging is
3237 now automatic.
3238 If your recipe builds software that installs binaries into
3239 directories other than the standard ones, you no longer
3240 need to take care of setting
3241 <filename>FILES_${PN}-dbg</filename> to pick up the
3242 resulting <filename>.debug</filename> directories as these
3243 directories are automatically found and added.
3244 </para></listitem>
3245 <listitem><para>
3246 Inaccurate disk and CPU percentage data has been dropped
3247 from <filename>buildstats</filename> output.
3248 This data has been replaced with
3249 <filename>getrusage()</filename> data and corrected IO
3250 statistics.
3251 You will probably need to update code that reads the
3252 <filename>buildstats</filename> data.
3253 </para></listitem>
3254 <listitem><para>
3255 The
3256 <filename>meta/conf/distro/include/package_regex.inc</filename>
3257 is now deprecated.
3258 The contents of this file have been moved to individual
3259 recipes.
3260 <note><title>Tip</title>
3261 Because this file will likely be removed in a future
3262 Yocto Project release, it is suggested that you remove
3263 any references to the file that might be in your
3264 configuration.
3265 </note>
3266 </para></listitem>
3267 <listitem><para>
3268 The <filename>v86d/uvesafb</filename> has been removed from
3269 the <filename>genericx86</filename> and
3270 <filename>genericx86-64</filename> reference machines,
3271 which are provided by the
3272 <filename>meta-yocto-bsp</filename> layer.
3273 Most modern x86 boards do not rely on this file and it only
3274 adds kernel error messages during startup.
3275 If you do still need the file, you can simply add
3276 <filename>v86d</filename> to your image.
3277 </para></listitem>
3278 </itemizedlist>
3279 </para>
3280 </section>
3281</section>
2754 3282
2755</chapter> 3283</chapter>
2756<!-- 3284<!--