Yocto Project Reference Manual

Table of Contents

• 1 System Requirements
  • 1.1 Supported Linux Distributions
  • 1.2 Required Packages for the Build Host
    • 1.2.1 Ubuntu and Debian
    • 1.2.2 Fedora Packages
    • 1.2.3 openSUSE Packages
    • 1.2.4 CentOS-7 Packages
    • 1.2.5 CentOS-8 Packages
  • 1.3 Required Git, tar, Python and gcc Versions
    • 1.3.1 Installing a Pre-Built buildtools Tarball with install-buildtools script
    • 1.3.2 Downloading a Pre-Built buildtools Tarball
    • 1.3.3 Building Your Own buildtools Tarball
• 2 Yocto Project Terms
• 3 Yocto Project Releases and the Stable Release Process
  • 3.1 Major and Minor Release Cadence
  • 3.2 Major Release Codenames
  • 3.3 Stable Release Process
  • 3.4 Testing and Quality Assurance
• 4 Migrating to a Newer Yocto Project Release
  • 4.1 General Migration Considerations
  • 4.2 Moving to the Yocto Project 1.3 Release
    • 4.2.1 Local Configuration
      • 4.2.1.1 SSTATE_MIRRORS
      • 4.2.1.2 bblayers.conf
    • 4.2.2 Recipes
      • 4.2.2.1 Python Function Whitespace
      • 4.2.2.2 proto= in SRC_URI
      • 4.2.2.3 nativesdk
      • 4.2.2.4 Task Recipes
      • 4.2.2.5 IMAGE_FEATURES
      • 4.2.2.6 Removed Recipes
    • 4.2.3 Linux Kernel Naming
  • 4.3 Moving to the Yocto Project 1.4 Release
    • 4.3.1 BitBake
    • 4.3.2 Build Behavior
    • 4.3.3 Proxies and Fetching Source
    • 4.3.4 Custom Interfaces File (netbase change)
    • 4.3.5 Remote Debugging
    • 4.3.6 Variables
    • 4.3.7 Target Package Management with RPM
    • 4.3.8 Recipes Moved
    • 4.3.9 Removals and Renames
  • 4.4 Moving to the Yocto Project 1.5 Release
    • 4.4.1 Host Dependency Changes
    • 4.4.2 atom-pc Board Support Package (BSP)
    • 4.4.3 BitBake
    • 4.4.4 QA Warnings
    • 4.4.5 Directory Layout Changes
    • 4.4.6 Shortened Git SRCREV Values
    • 4.4.7 IMAGE_FEATURES
    • 4.4.8 /run
    • 4.4.9 Removal of Package Manager Database Within Image Recipes
    • 4.4.10 Images Now Rebuild Only on Changes Instead of Every Time
    • 4.4.11 Task Recipes
    • 4.4.12 BusyBox
    • 4.4.13 Automated Image Testing
    • 4.4.14 Build History
    • 4.4.15 udev
    • 4.4.16 Removed and Renamed Recipes
    • 4.4.17 Other Changes
  • 4.5 Moving to the Yocto Project 1.6 Release
    • 4.5.1 archiver Class
    • 4.5.2 Packaging Changes
    • 4.5.3 BitBake
      • 4.5.3.1 Matching Branch Requirement for Git Fetching
      • 4.5.3.2 Python Definition substitutions
      • 4.5.3.3 SVK Fetcher
      • 4.5.3.4 Console Output Error Redirection
      • 4.5.3.5 task-taskname Overrides
    • 4.5.4 Changes to Variables
      • 4.5.4.1 TMPDIR
      • 4.5.4.2 PRINC
      • 4.5.4.3 IMAGE_TYPES
      • 4.5.4.4 COPY_LIC_MANIFEST
      • 4.5.4.5 COPY_LIC_DIRS
      • 4.5.4.6 PACKAGE_GROUP
      • 4.5.4.7 Preprocess and Post Process Command Variable Behavior
    • 4.5.5 Package Test (ptest)
    • 4.5.6 Build Changes
    • 4.5.7 qemu-native
    • 4.5.8 core-image-basic
    • 4.5.9 Licensing
    • 4.5.10 CFLAGS Options
    • 4.5.11 Custom Image Output Types
    • 4.5.12 Tasks
    • 4.5.13 update-alternative Provider
    • 4.5.14 virtclass Overrides
    • 4.5.15 Removed and Renamed Recipes
    • 4.5.16 Removed Classes
    • 4.5.17 Reference Board Support Packages (BSPs)
  • 4.6 Moving to the Yocto Project 1.7 Release
    • 4.6.1 Changes to Setting QEMU PACKAGECONFIG Options in local.conf
    • 4.6.2 Minimum Git version
    • 4.6.3 Autotools Class Changes
    • 4.6.4 Binary Configuration Scripts Disabled
    • 4.6.5 eglibc 2.19 Replaced with glibc 2.20
    • 4.6.6 Kernel Module Autoloading
    • 4.6.7 QA Check Changes
    • 4.6.8 Removed Recipes
    • 4.6.9 Miscellaneous Changes
  • 4.7 Moving to the Yocto Project 1.8 Release
    • 4.7.1 Removed Recipes
    • 4.7.2 BlueZ 4.x / 5.x Selection
    • 4.7.3 Kernel Build Changes
    • 4.7.4 SSL 3.0 is Now Disabled in OpenSSL
    • 4.7.5 Default Sysroot Poisoning
    • 4.7.6 Rebuild Improvements
    • 4.7.7 QA Check and Validation Changes
    • 4.7.8 Miscellaneous Changes
  • 4.8 Moving to the Yocto Project 2.0 Release
    • 4.8.1 GCC 5
    • 4.8.2 Gstreamer 0.10 Removed
    • 4.8.3 Removed Recipes
    • 4.8.4 BitBake datastore improvements
    • 4.8.5 Shell Message Function Changes
    • 4.8.6 Extra Development/Debug Package Cleanup
    • 4.8.7 Recipe Maintenance Tracking Data Moved to OE-Core
    • 4.8.8 Automatic Stale Sysroot File Cleanup
    • 4.8.9 linux-yocto Kernel Metadata Repository Now Split from Source
    • 4.8.10 Additional QA checks
    • 4.8.11 Miscellaneous Changes
  • 4.9 Moving to the Yocto Project 2.1 Release
    • 4.9.1 Variable Expansion in Python Functions
    • 4.9.2 Overrides Must Now be Lower-Case
    • 4.9.3 Expand Parameter to getVar() and getVarFlag() is Now Mandatory
    • 4.9.4 Makefile Environment Changes
    • 4.9.5 libexecdir Reverted to ${prefix}/libexec
    • 4.9.6 ac_cv_sizeof_off_t is No Longer Cached in Site Files
    • 4.9.7 Image Generation is Now Split Out from Filesystem Generation
    • 4.9.8 Removed Recipes
    • 4.9.9 Class Changes
    • 4.9.10 Build System User Interface Changes
    • 4.9.11 ADT Removed
    • 4.9.12 Poky Reference Distribution Changes
    • 4.9.13 Packaging Changes
    • 4.9.14 Tuning File Changes
    • 4.9.15 Supporting GObject Introspection
    • 4.9.16 Miscellaneous Changes
  • 4.10 Moving to the Yocto Project 2.2 Release
    • 4.10.1 Minimum Kernel Version
    • 4.10.2 Staging Directories in Sysroot Has Been Simplified
    • 4.10.3 Removal of Old Images and Other Files in tmp/deploy Now Enabled
    • 4.10.4 Python Changes
      • 4.10.4.1 BitBake Now Requires Python 3.4+
      • 4.10.4.2 UTF-8 Locale Required on Build Host
      • 4.10.4.3 Metadata Must Now Use Python 3 Syntax
      • 4.10.4.4 Target Python Recipes Switched to Python 3
      • 4.10.4.5 buildtools-tarball Includes Python 3
    • 4.10.5 uClibc Replaced by musl
    • 4.10.6 ${B} No Longer Default Working Directory for Tasks
    • 4.10.7 runqemu Ported to Python
    • 4.10.8 Default Linker Hash Style Changed
    • 4.10.9 KERNEL_IMAGE_BASE_NAME no Longer Uses KERNEL_IMAGETYPE
    • 4.10.10 BitBake Changes
    • 4.10.11 Swabber has Been Removed
    • 4.10.12 Removed Recipes
    • 4.10.13 Removed Classes
    • 4.10.14 Minor Packaging Changes
    • 4.10.15 Miscellaneous Changes
  • 4.11 Moving to the Yocto Project 2.3 Release
    • 4.11.1 Recipe-specific Sysroots
    • 4.11.2 PATH Variable
    • 4.11.3 Changes to Scripts
    • 4.11.4 Changes to Functions
    • 4.11.5 BitBake Changes
    • 4.11.6 Absolute Symbolic Links
    • 4.11.7 GPLv2 Versions of GPLv3 Recipes Moved
    • 4.11.8 Package Management Changes
    • 4.11.9 Removed Recipes
    • 4.11.10 Wic Changes
    • 4.11.11 QA Changes
    • 4.11.12 Miscellaneous Changes
  • 4.12 Moving to the Yocto Project 2.4 Release
    • 4.12.1 Memory Resident Mode
    • 4.12.2 Packaging Changes
    • 4.12.3 Removed Recipes
    • 4.12.4 Kernel Device Tree Move
    • 4.12.5 Package QA Changes
    • 4.12.6 README File Changes
    • 4.12.7 Miscellaneous Changes
  • 4.13 Moving to the Yocto Project 2.5 Release
    • 4.13.1 Packaging Changes
    • 4.13.2 Removed Recipes
    • 4.13.3 Scripts and Tools Changes
    • 4.13.4 BitBake Changes
    • 4.13.5 Python and Python 3 Changes
    • 4.13.6 Miscellaneous Changes
  • 4.14 Moving to the Yocto Project 2.6 Release
    • 4.14.1 GCC 8.2 is Now Used by Default
    • 4.14.2 Removed Recipes
    • 4.14.3 Packaging Changes
    • 4.14.4 XOrg Protocol dependencies
    • 4.14.5 distutils and distutils3 Now Prevent Fetching Dependencies During the do_configure Task
    • 4.14.6 linux-yocto Configuration Audit Issues Now Correctly Reported
    • 4.14.7 Image/Kernel Artifact Naming Changes
    • 4.14.8 SERIAL_CONSOLE Deprecated
    • 4.14.9 Configure Script Reports Unknown Options as Errors
    • 4.14.10 Override Changes
    • 4.14.11 systemd Configuration is Now Split Into systemd-conf
    • 4.14.12 Automatic Testing Changes
    • 4.14.13 OpenSSL Changes
    • 4.14.14 BitBake Changes
    • 4.14.15 Security Changes
    • 4.14.16 Post Installation Changes
    • 4.14.17 Python 3 Profile-Guided Optimization
    • 4.14.18 Miscellaneous Changes
  • 4.15 Moving to the Yocto Project 2.7 Release
    • 4.15.1 BitBake Changes
    • 4.15.2 Eclipse Support Removed
    • 4.15.3 qemu-native Splits the System and User-Mode Parts
    • 4.15.4 The upstream-tracking.inc File Has Been Removed
    • 4.15.5 The DISTRO_FEATURES_LIBC Variable Has Been Removed
    • 4.15.6 License Value Corrections
    • 4.15.7 Packaging Changes
    • 4.15.8 Removed Recipes
    • 4.15.9 Removed Classes
    • 4.15.10 Miscellaneous Changes
  • 4.16 Moving to the Yocto Project 3.0 Release
    • 4.16.1 Init System Selection
    • 4.16.2 LSB Support Removed
    • 4.16.3 Removed Recipes
    • 4.16.4 Packaging Changes
    • 4.16.5 CVE Checking
    • 4.16.6 Bitbake Changes
    • 4.16.7 Sanity Checks
    • 4.16.8 Miscellaneous Changes
  • 4.17 Moving to the Yocto Project 3.1 Release
    • 4.17.1 Minimum system requirements
    • 4.17.2 mpc8315e-rdb machine removed
    • 4.17.3 Python 2 removed
    • 4.17.4 Reproducible builds now enabled by default
    • 4.17.5 Impact of ptest feature is now more significant
    • 4.17.6 Removed recipes
    • 4.17.7 features_check class replaces distro_features_check
    • 4.17.8 Removed classes
    • 4.17.9 SRC_URI checksum behaviour
    • 4.17.10 npm fetcher changes
    • 4.17.11 Packaging changes
    • 4.17.12 Additional warnings
    • 4.17.13 wic image type now used instead of live by default for x86
    • 4.17.14 Miscellaneous changes
• 5 Source Directory Structure
  • 5.1 Top-Level Core Components
    • 5.1.1 bitbake/
    • 5.1.2 build/
    • 5.1.3 documentation/
    • 5.1.4 meta/
    • 5.1.5 meta-poky/
    • 5.1.6 meta-yocto-bsp/
    • 5.1.7 meta-selftest/
    • 5.1.8 meta-skeleton/
    • 5.1.9 scripts/
    • 5.1.10 oe-init-build-env
    • 5.1.11 LICENSE, README, and README.hardware
  • 5.2 The Build Directory - build/
    • 5.2.1 build/buildhistory/
    • 5.2.2 build/conf/local.conf
    • 5.2.3 build/conf/bblayers.conf
    • 5.2.4 build/cache/sanity_info
    • 5.2.5 build/downloads/
    • 5.2.6 build/sstate-cache/
    • 5.2.7 build/tmp/
    • 5.2.8 build/tmp/buildstats/
    • 5.2.9 build/tmp/cache/
    • 5.2.10 build/tmp/deploy/
    • 5.2.11 build/tmp/deploy/deb/
    • 5.2.12 build/tmp/deploy/rpm/
    • 5.2.13 build/tmp/deploy/ipk/
    • 5.2.14 build/tmp/deploy/licenses/
    • 5.2.15 build/tmp/deploy/images/
    • 5.2.16 build/tmp/deploy/sdk/
    • 5.2.17 build/tmp/sstate-control/
    • 5.2.18 build/tmp/sysroots-components/
    • 5.2.19 build/tmp/sysroots/
    • 5.2.20 build/tmp/stamps/
    • 5.2.21 build/tmp/log/
    • 5.2.22 build/tmp/work/
    • 5.2.23 build/tmp/work/tunearch/recipename/version/
    • 5.2.24 build/tmp/work-shared/
  • 5.3 The Metadata - meta/
    • 5.3.1 meta/classes/
    • 5.3.2 meta/conf/
    • 5.3.3 meta/conf/machine/
    • 5.3.4 meta/conf/distro/
    • 5.3.5 meta/conf/machine-sdk/
    • 5.3.6 meta/files/
    • 5.3.7 meta/lib/
    • 5.3.8 meta/recipes-bsp/
    • 5.3.9 meta/recipes-connectivity/
    • 5.3.10 meta/recipes-core/
    • 5.3.11 meta/recipes-devtools/
    • 5.3.12 meta/recipes-extended/
    • 5.3.13 meta/recipes-gnome/
    • 5.3.14 meta/recipes-graphics/
    • 5.3.15 meta/recipes-kernel/
    • 5.3.16 meta/recipes-lsb4/
    • 5.3.17 meta/recipes-multimedia/
    • 5.3.18 meta/recipes-rt/
    • 5.3.19 meta/recipes-sato/
    • 5.3.20 meta/recipes-support/
    • 5.3.21 meta/site/
    • 5.3.22 meta/recipes.txt
• 6 Classes
  • 6.1 allarch.bbclass
  • 6.2 archiver.bbclass
  • 6.3 autotools*.bbclass
  • 6.4 base.bbclass
  • 6.5 bash-completion.bbclass
  • 6.6 bin_package.bbclass
  • 6.7 binconfig.bbclass
  • 6.8 binconfig-disabled.bbclass
  • 6.9 blacklist.bbclass
  • 6.10 buildhistory.bbclass
  • 6.11 buildstats.bbclass
  • 6.12 buildstats-summary.bbclass
  • 6.13 ccache.bbclass
  • 6.14 chrpath.bbclass
  • 6.15 clutter.bbclass
  • 6.16 cmake.bbclass
  • 6.17 cml1.bbclass
  • 6.18 compress_doc.bbclass
  • 6.19 copyleft_compliance.bbclass
  • 6.20 copyleft_filter.bbclass
  • 6.21 core-image.bbclass
  • 6.22 cpan*.bbclass
  • 6.23 cross.bbclass
  • 6.24 cross-canadian.bbclass
  • 6.25 crosssdk.bbclass
  • 6.26 debian.bbclass
  • 6.27 deploy.bbclass
  • 6.28 devshell.bbclass
  • 6.29 devupstream.bbclass
  • 6.30 distutils*.bbclass
  • 6.31 distutils3*.bbclass
  • 6.32 externalsrc.bbclass
  • 6.33 extrausers.bbclass
  • 6.34 features_check.bbclass
  • 6.35 fontcache.bbclass
  • 6.36 fs-uuid.bbclass
  • 6.37 gconf.bbclass
  • 6.38 gettext.bbclass
  • 6.39 gnomebase.bbclass
  • 6.40 gobject-introspection.bbclass
  • 6.41 grub-efi.bbclass
  • 6.42 gsettings.bbclass
  • 6.43 gtk-doc.bbclass
  • 6.44 gtk-icon-cache.bbclass
  • 6.45 gtk-immodules-cache.bbclass
  • 6.46 gzipnative.bbclass
  • 6.47 icecc.bbclass
  • 6.48 image.bbclass
  • 6.49 image-buildinfo.bbclass
  • 6.50 image_types.bbclass
  • 6.51 image-live.bbclass
  • 6.52 image-mklibs.bbclass
  • 6.53 image-prelink.bbclass
  • 6.54 insane.bbclass
  • 6.55 insserv.bbclass
  • 6.56 kernel.bbclass
  • 6.57 kernel-arch.bbclass
  • 6.58 kernel-devicetree.bbclass
  • 6.59 kernel-fitimage.bbclass
  • 6.60 kernel-grub.bbclass
  • 6.61 kernel-module-split.bbclass
  • 6.62 kernel-uboot.bbclass
  • 6.63 kernel-uimage.bbclass
  • 6.64 kernel-yocto.bbclass
  • 6.65 kernelsrc.bbclass
  • 6.66 lib_package.bbclass
  • 6.67 libc*.bbclass
  • 6.68 license.bbclass
  • 6.69 linux-kernel-base.bbclass
  • 6.70 linuxloader.bbclass
  • 6.71 logging.bbclass
  • 6.72 meta.bbclass
  • 6.73 metadata_scm.bbclass
  • 6.74 migrate_localcount.bbclass
  • 6.75 mime.bbclass
  • 6.76 mirrors.bbclass
  • 6.77 module.bbclass
  • 6.78 module-base.bbclass
  • 6.79 multilib*.bbclass
  • 6.80 native.bbclass
  • 6.81 nativesdk.bbclass
  • 6.82 nopackages.bbclass
  • 6.83 npm.bbclass
  • 6.84 oelint.bbclass
  • 6.85 own-mirrors.bbclass
  • 6.86 package.bbclass
  • 6.87 package_deb.bbclass
  • 6.88 package_ipk.bbclass
  • 6.89 package_rpm.bbclass
  • 6.90 package_tar.bbclass
  • 6.91 packagedata.bbclass
  • 6.92 packagegroup.bbclass
  • 6.93 patch.bbclass
  • 6.94 perlnative.bbclass
  • 6.95 pixbufcache.bbclass
  • 6.96 pkgconfig.bbclass
  • 6.97 populate_sdk.bbclass
  • 6.98 populate_sdk_*.bbclass
  • 6.99 prexport.bbclass
  • 6.100 primport.bbclass
  • 6.101 prserv.bbclass
  • 6.102 ptest.bbclass
  • 6.103 ptest-gnome.bbclass
  • 6.104 python-dir.bbclass
  • 6.105 python3native.bbclass
  • 6.106 pythonnative.bbclass
  • 6.107 qemu.bbclass
  • 6.108 recipe_sanity.bbclass
  • 6.109 relocatable.bbclass
  • 6.110 remove-libtool.bbclass
  • 6.111 report-error.bbclass
  • 6.112 rm_work.bbclass
  • 6.113 rootfs*.bbclass
  • 6.114 sanity.bbclass
  • 6.115 scons.bbclass
  • 6.116 sdl.bbclass
  • 6.117 setuptools.bbclass
  • 6.118 setuptools3.bbclass
  • 6.119 sign_rpm.bbclass
  • 6.120 sip.bbclass
  • 6.121 siteconfig.bbclass
  • 6.122 siteinfo.bbclass
  • 6.123 spdx.bbclass
  • 6.124 sstate.bbclass
  • 6.125 staging.bbclass
  • 6.126 syslinux.bbclass
  • 6.127 systemd.bbclass
  • 6.128 systemd-boot.bbclass
  • 6.129 terminal.bbclass
  • 6.130 testimage*.bbclass
  • 6.131 testsdk.bbclass
  • 6.132 texinfo.bbclass
  • 6.133 toaster.bbclass
  • 6.134 toolchain-scripts.bbclass
  • 6.135 typecheck.bbclass
  • 6.136 uboot-config.bbclass
  • 6.137 uninative.bbclass
  • 6.138 update-alternatives.bbclass
  • 6.139 update-rc.d.bbclass
  • 6.140 useradd*.bbclass
  • 6.141 utility-tasks.bbclass
  • 6.142 utils.bbclass
  • 6.143 vala.bbclass
  • 6.144 waf.bbclass
• 7 Tasks
  • 7.1 Normal Recipe Build Tasks
    • 7.1.1 do_build
    • 7.1.2 do_compile
    • 7.1.3 do_compile_ptest_base
    • 7.1.4 do_configure
    • 7.1.5 do_configure_ptest_base
    • 7.1.6 do_deploy
    • 7.1.7 do_fetch
    • 7.1.8 do_image
    • 7.1.9 do_image_complete
    • 7.1.10 do_install
    • 7.1.11 do_install_ptest_base
    • 7.1.12 do_package
    • 7.1.13 do_package_qa
    • 7.1.14 do_package_write_deb
    • 7.1.15 do_package_write_ipk
    • 7.1.16 do_package_write_rpm
    • 7.1.17 do_package_write_tar
    • 7.1.18 do_packagedata
    • 7.1.19 do_patch
    • 7.1.20 do_populate_lic
    • 7.1.21 do_populate_sdk
    • 7.1.22 do_populate_sdk_ext
    • 7.1.23 do_populate_sysroot
    • 7.1.24 do_prepare_recipe_sysroot
    • 7.1.25 do_rm_work
    • 7.1.26 do_unpack
  • 7.2 Manually Called Tasks
    • 7.2.1 do_checkpkg
    • 7.2.2 do_checkuri
    • 7.2.3 do_clean
    • 7.2.4 do_cleanall
    • 7.2.5 do_cleansstate
    • 7.2.6 do_devpyshell
    • 7.2.7 do_devshell
    • 7.2.8 do_listtasks
    • 7.2.9 do_package_index
  • 7.3 Image-Related Tasks
    • 7.3.1 do_bootimg
    • 7.3.2 do_bundle_initramfs
    • 7.3.3 do_rootfs
    • 7.3.4 do_testimage
    • 7.3.5 do_testimage_auto
  • 7.4 Kernel-Related Tasks
    • 7.4.1 do_compile_kernelmodules
    • 7.4.2 do_diffconfig
    • 7.4.3 do_kernel_checkout
    • 7.4.4 do_kernel_configcheck
    • 7.4.5 do_kernel_configme
    • 7.4.6 do_kernel_menuconfig
    • 7.4.7 do_kernel_metadata
    • 7.4.8 do_menuconfig
    • 7.4.9 do_savedefconfig
    • 7.4.10 do_shared_workdir
    • 7.4.11 do_sizecheck
    • 7.4.12 do_strip
    • 7.4.13 do_validate_branches
  • 7.5 Miscellaneous Tasks
    • 7.5.1 do_spdx
• 8 devtool Quick Reference
  • 8.1 Getting Help
  • 8.2 The Workspace Layer Structure
  • 8.3 Adding a New Recipe to the Workspace Layer
  • 8.4 Extracting the Source for an Existing Recipe
  • 8.5 Synchronizing a Recipe’s Extracted Source Tree
  • 8.6 Modifying an Existing Recipe
  • 8.7 Edit an Existing Recipe
  • 8.8 Updating a Recipe
  • 8.9 Checking on the Upgrade Status of a Recipe
  • 8.10 Upgrading a Recipe
  • 8.11 Resetting a Recipe
  • 8.12 Building Your Recipe
  • 8.13 Building Your Image
  • 8.14 Deploying Your Software on the Target Machine
  • 8.15 Removing Your Software from the Target Machine
  • 8.16 Creating the Workspace Layer in an Alternative Location
  • 8.17 Get the Status of the Recipes in Your Workspace
  • 8.18 Search for Available Target Recipes
• 9 OpenEmbedded Kickstart (.wks) Reference
  • 9.1 Introduction
  • 9.2 Command: part or partition
  • 9.3 Command: bootloader
• 10 QA Error and Warning Messages
  • 10.1 Introduction
  • 10.2 Errors and Warnings
  • 10.3 Configuring and Disabling QA Checks
• 11 Images
• 12 Features
  • 12.1 Machine Features
  • 12.2 Distro Features
  • 12.3 Image Features
  • 12.4 Feature Backfilling
• 13 Variables Glossary
• 14 Variable Context
  • 14.1 Configuration
    • 14.1.1 Distribution (Distro)
    • 14.1.2 Machine
    • 14.1.3 Local
  • 14.2 Recipes
    • 14.2.1 Required
    • 14.2.2 Dependencies
    • 14.2.3 Paths
    • 14.2.4 Extra Build Information
• 15 FAQ
• 16 Contributions and Additional Information
  • 16.1 Introduction
  • 16.2 Contributions
  • 16.3 Yocto Project Bugzilla
  • 16.4 Mailing lists
  • 16.5 Internet Relay Chat (IRC)
  • 16.6 Links and Related Documentation
• 17 Manual Revision History

---

The Yocto Project ®

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