summaryrefslogtreecommitdiff
path: root/poky/documentation/ref-manual/faq.rst
diff options
context:
space:
mode:
authorAndrew Geissler <geissonator@yahoo.com>2020-09-18 22:11:35 +0300
committerAndrew Geissler <geissonator@yahoo.com>2020-10-06 01:10:26 +0300
commitc9f7865a347606a64696048817b0f09d9c3fcd31 (patch)
tree00db80fae3599061617c0cb052a57302620882ec /poky/documentation/ref-manual/faq.rst
parentd1a90aa35d35426789d8f4061166a6dd8d27a30e (diff)
downloadopenbmc-c9f7865a347606a64696048817b0f09d9c3fcd31.tar.xz
poky: subtree update:c67f57c09e..c6bc20857c
Adrian Freihofer (2): oe-publish-sdk: fix layers init via ssh oe-publish-sdk: add --keep-orig option Alexander Kanavin (68): meta-selftest: correct the virgl test for 5.8 kernels bison: upgrade 3.6.4 -> 3.7.1 util-linux: upgrade 2.35.2 -> 2.36 python3-numpy: upgrade 1.19.0 -> 1.19.1 python3-setuptools: upgrade 49.3.1 -> 49.6.0 rsync: upgrade 3.2.2 -> 3.2.3 util-linux: merge .inc into .bb acpica: upgrade 20200528 -> 20200717 asciidoc: upgrade 9.0.1 -> 9.0.2 cryptodev: upgrade 1.10 -> 1.11 diffoscope: upgrade 153 -> 156 epiphany: upgrade 3.36.3 -> 3.36.4 font-alias: upgrade 1.0.3 -> 1.0.4 gtk+3: upgrade 3.24.21 -> 3.24.22 libcheck: upgrade 0.15.0 -> 0.15.2 libinput: upgrade 1.16.0 -> 1.16.1 libpipeline: upgrade 1.5.2 -> 1.5.3 libx11: upgrade 1.6.9 -> 1.6.11 linux-firmware: upgrade 20200619 -> 20200721 man-pages: upgrade 5.07 -> 5.08 mc: upgrade 4.8.24 -> 4.8.25 mesa: upgrade 20.1.4 -> 20.1.5 piglit: upgrade to latest revision re2c: upgrade 2.0 -> 2.0.2 sysstat: upgrade 12.2.2 -> 12.4.0 vala: upgrade 0.48.7 -> 0.48.9 bootchart2: update 0.14.8 -> 0.14.9 harfbuzz: convert to meson, enable gobject introspection pango: update 1.44.7 -> 1.46.0 boost: update 1.73.0 -> 1.74.0 xev: update 1.2.3 -> 1.2.4 wpebackend-fdo: update 1.6.1 -> 1.7.1 gpgme: update 1.13.1 -> 1.14.0 libpsl: update 0.21.0 -> 0.21.1. gettext: update 0.20.2 -> 0.21 cmake: update 3.17.3 -> 3.18.1 linux-firmware: update 20200721 -> 20200817 meson: update 0.55.0 -> 0.55.1 systemd-boot: bump version to 246.2 json-glib: inherit upstream-version-is-even packagegroup-core-device-devel: remove oeqa/x32lib: rework to use readelf from the host oeqa/multilib: rework to use readelf from the host oeqa/multilib: un-skip the connman test poky.conf: do not install packagegroup-core-device-devel into qemu images glib-2.0: update 2.64.4 -> 2.64.5 cmake: upgrade 3.18.1 -> 3.18.2 libxcrypt: upgrade 4.4.16 -> 4.4.17 debianutils: upgrade 4.11 -> 4.11.1 enchant2: upgrade 2.2.8 -> 2.2.9 harfbuzz: upgrade 2.7.1 -> 2.7.2 libmpc: upgrade 1.1.0 -> 1.2.0 librepo: upgrade 1.12.0 -> 1.12.1 libuv: upgrade 1.38.1 -> 1.39.0 msmtp: upgrade 1.8.11 -> 1.8.12 ninja: upgrade 1.10.0 -> 1.10.1 p11-kit: upgrade 0.23.20 -> 0.23.21 pango: upgrade 1.46.0 -> 1.46.1 re2c: upgrade 2.0.2 -> 2.0.3 resolvconf: upgrade 1.82 -> 1.83 stress-ng: upgrade 0.11.18 -> 0.11.19 gnu-config: update to latest revision nasm: update 2.15.03 -> 2.15.05 libva-utils: fix upstream version check gnupg: update 2.2.21 -> 2.2.22 libx11: update 1.6.11 -> 1.6.12 mesa: update 20.1.5 -> 20.1.6 xserver-xorg: update 1.20.8 -> 1.20.9 Andrey Zhizhikin (1): insane: check for missing update-alternatives inherit Anibal Limon (1): recipes-kernel: linux-firmware add qcom-venus-{5.2,5.4} packages Aníbal Limón (1): recipes-graphics/xorg-xserver: Add patch to fix segfault when probe Armin Kuster (2): bind: update to 9.11.22 ESV core-image-sato: qemumips use 512 mem Bruce Ashfield (30): linux-yocto/5.4: update to v5.4.59 linux-yocto/5.8: update to v5.8.2 yocto-bsp: update to v5.4.56 yocto-bsp: update to v5.4.58 qemu: bump default reference kernel to v5.8 linux-yocto/5.8: fix perf and virtio_scsi warnings linux-yocto-rt/5.8: fix lttng-modules build linux-yocto/5.8: selftests/bpf: Prevent runqslower from racing on building bpftool linux-yocto/5.8: disable CONFIG_NFS_DISABLE_UDP_SUPPORT poky: set preferred version for linux-yocto to be v5.8 poky-tiny: set preferred version to 5.8 poky: add preferred version for linux-yocto-rt linux-yocto/5.8: update to v5.8.3 linux-yocto/5.4: update to v5.4.60 kernel: config cleanups for 5.8+ linux-yocto/5.4: update to v5.4.61 linux-yocto/5.8: update to v5.8.4 linux-yocto/5.8: disable IKHEADERS in default builds kernel-yocto: allow promotion of configuration warnings to errors kernel-yocto: checksum all modifications to available kernel fragments directories lttng-modules/devupstream: bump to latest 2.12 commits linux-yocto-dev: bump to v5.9+ linux-yocto/5.8: update to v5.8.5 kernel-devsrc: account for HOSTCC and HOSTCXX linux-yocto/config: netfilter: Enable nat for ipv4 and ipv6 linux-yocto/5.8: update to v5.8.8 linux-yocto/5.4: update to v5.4.64 linux-yocto/config: configuration warning cleanup linux-yocto/5.8: update to v5.8.9 linux-yocto/5.4: update to v5.4.65 Changhyeok Bae (2): iw: upgrade 5.4 -> 5.8 iputils: upgrade s20190709 -> s20200821 Chris Laplante (12): bitbake: compat.py: remove file since it no longer actually implements anything bitbake: COW: formatting bitbake: COW: migrate test suite into tests/cow cve-update-db-native: add progress handler cve-check/cve-update-db-native: use lockfile to fix usage under multiconfig cve-update-db-native: use context manager for cve_f cve-check: avoid FileNotFoundError if no do_cve_check task has run bitbake: utils: process_profilelog: use context manager bitbake: utils: fix UnboundLocalError when _print_exception raises cve-update-db-native: be less magical about checking whether the cve-check class is enabled cve-update-db-native: move -journal checking into do_fetch cve-update-db-native: remove unused variable Christophe GUIBOUT (1): initramfs-framework: support kernel cmdline with double quotes Denys Dmytriyenko (2): weston: upgrade 8.0.0 -> 9.0.0 cryptodev: bump 1 commit past 1.11 to fix 5.9-rc1+ Diego Sueiro (2): license_image.bbclass: Create symlink to the image license manifest dir license_image.bbclass: Fix symlink to the image license manifest dir creation Douglas Royds (1): tcmode-default: Drop gcc-cross-initial, gcc-crosssdk-initial references Frazer Clews (1): bitbake: lib: fix most undefined code picked up by pylint Geoff Parker (1): systemd-serialgetty: Replace sed quoting using ' with " to allow var expansion Jacob Kroon (1): gcc10: Don't default back to -fcommon Jean-Francois Dagenais (1): bitbake: siggen: clean_basepath: remove recipe full path when virtual:xyz present Jens Rehsack (1): lttng-modules: backport patches from 2.12.x to fix 5.4.64+ and 5.8.9+ builds Joe Slater (1): pseudo: fix renaming to self Jon Mason (4): cortex-m0plus.inc: change file permissions tune-cortexa55.inc: clean-up ARMv8.2a uses tune-cortexa57-cortexa53.inc: add CRC and set march tune-cortexa*: Cleanups Joshua Watt (8): wic: Add 512 Byte alignment to --offset oeqa: runtime_tests: Extra GPG debugging oeqa: sdk: Capture stderr output oeqa: reproducible: Fix test not producing diffs diffoscope: upgrade 156 -> 158 bitbake: bitbake: Add parsing torture test bitbake: cooker: Block SIGINT in worker processes sphinx: dev-manual: Clarify that virtual providers do not apply to runtime dependencies Kai Kang (1): dhcpcd: 9.1.4 -> 9.2.0 Kevin Hao (1): meta-yocto-bsp: Bump to the v5.8 kernel Khairul Rohaizzat Jamaluddin (1): wic/bootimg-efi: IMAGE_EFI_BOOT_FILES variable added to separate bootimg-efi and bootimg-partition Khem Raj (24): gcc-cross-canadian: Install gcc/g++ wrappers for musl uninative: Upgrade to 2.9 packagegroup-core-tools-profile: Disable lttng-modules for riscv64 lttng-modules: Disable on riscv64 kexec-tools: Fix build with -fno-common on ppc lttng-tools: Do not build for riscv64 util-linux: Allow update alternatives for additional apps lttng-tools: lttng-ust works on riscv64 json-glib: Backport a build fix with clang rpcbind: Use update-alternatives for rpcinfo go: Upgrade to 1.15 major release weston-init: Redefine weston service and add socket activation option musl: Upgrade to latest master libucontext: Recognise riscv32 architecture linuxloader.bbclass: Define riscv32 ldso for musl populate_sdk_ext: Do not assume local.conf will always exist weston: plane_add_prop() calls break musl atomic modesetting weston-init: Enable RDP screen share weston-init: Do not use fbdev backend weston-init: Select drm/fbdev backends for qemu machines oeqa/weston: Fix tests to run with systemd core-image-weston: Bump qemu memory to 512M go: Update to 1.15.2 minor release bind: Inherit update-alternatives Mark Hatle (6): package_tar.bbclass: Sync to the other package_* classes kernel.bbclass: Remove do_install[prefunc] no longer needed buildhistory.bbclass: Rework to use read_subpackage_metadata kernel.bbclass: Move away from calling package_get_auto_pr package.bbclass: hash equivalency and pr service bitbake: process.py: Handle SystemExit exception to eliminate backtrace Mark Morton (1): sphinx: test-manual code block, link, and format update Martin Jansa (7): devtool: expand SRC_URI when guessing recipe update mode image-artifact-names: introduce new bbclass and move some variables into it kernel.bbclass: use bash variables like imageType, base_name without {} kernel.bbclass: eliminate (initramfs_)symlink_name variables kernel.bbclass: use camelCase notation for bash variables in do_deploy *-initramfs: don't use .rootfs IMAGE_NAME_SUFFIX bitbake.conf: use ${TCMODE}-${TCLIBC} directory for CACHE Matt Madison (1): image.bbclass: fix REPRODUCIBLE_TIMESTAMP_ROOTFS reference Michael Gloff (2): sysvinit rc: Use PSPLASH_FIFO_DIR for progress fifo sysvinit: Remove ${B} assignment Michael Tretter (1): devtool: deploy-target: Fix size calculation for hard links Ming Liu (2): systemd: split systemd specific udev rules into its own package libubootenv: inherit uboot-config Mingli Yu (3): qemu: always define unknown_lock_type qemu: override DEBUG_BUILD bison: remove the parallel build patch Naveen Saini (1): lib/oe/recipeutils.py: add support for BBFILES_DYNAMIC Nicolas Dechesne (73): linux-libc-headers: kernel headers are installed in STAGING_KERNEL_BUILDDIR bitbake: sphinx: add initial build infrastructure bitbake: sphinx: initial sphinx support bitbake: sphinx: bitbake-user-manual: use builtin sphinx glossary bitbake: sphinx: switch to readthedocs theme bitbake: sphinx: override theme CSS bitbake: sphinx: fixup for links bitbake: sphinx: fix links inside notes bitbake: sphinx: fixes all remaining warnings bitbake: sphinx: Makefile.sphinx: add clean and publish targets bitbake: sphinx: tweak html output a bit bitbake: sphinx: add SPDX headers bitbake: sphinx: index: move the boilerplate at the end of the page bitbake: sphinx: conf: enable extlinks extension bitbake: sphinx: add releases page bitbake: sphinx: bitbake-user-manual: insert additional blank line after title bitbake: sphinx: last manual round of fixes/improvements bitbake: sphinx: update style for important, caution and warnings bitbake: sphinx: remove leading '/' bitbake: sphinx: theme_override: properly set font for verbatim text bitbake: bitbake-user-manual: fix bad links sphinx: add initial build infrastructure sphinx: initial sphinx support sphinx: ref-variables: use builtin sphinx glossary sphinx: overview-manual: add figures sphinx: switch to readthedocs theme sphinx: Add SPDX license headers sphinx: add CSS theme override sphinx: bsp-guide: add figures sphinx: add Yocto project logo sphinx: conf: update copyright sphinx: conf: add substitutions/global variables sphinx: add boilerplate file sphinx: add boilerplate to manuals sphinx: ref-manual: add revision history table sphinx: add a general index sphinx: conf.py: enable sphinx.ext.autosectionlabel sphinx: ref-manual: use builtin glossary for the Terms section sphinx: fix internal links sphinx: ref-manual: fix typo sphinx: fix custom term links sphinx: manual updates for some links sphinx: dev-manual add figures sphinx: kernel-dev: add figures sphinx: profile-manual: add figures sphinx: fix up bold text for informalexample container sphinx: ref-manual: add figures sphinx: sdk-manual: add figures sphinx: test-manual: add figures sphinx: toaster-manual: add figures sphinx: add links for Yocto project website sphinx: fix links when the link text should be displayed sphinx: add links to terms in the BitBake glossary sphinx: add links to section in the Bitbake manual sphinx: setup extlink for docs.yoctoproject.org sphinx: enable intersphinx extension sphinx: insert blank below between title and toc sphinx: fix up terms related to kernel-fitimage sphinx: conf: a few rendering tweaks sphinx: makefile: add publish target sphinx: conf: include CSS/JS files, the proper way sphinx: convert 'what I wish I'd known' sphinx: convert 'transitioning to a custom environment' sphinx: ref-manual: fix heading for oe-init-build-env sphinx: brief-yoctoprojectqs: fix up all remaining rendering issues sphinx: Makefile.sphinx improvements sphinx: convert bsp-guide sphinx: remove leading '/' sphinx: update style for important, caution and warnings sphinx: profile-manual: convert profile-manual sphinx: theme_override: properly set font for verbatim text sphinx: theme_override: add tying-it-together admonition sphinx: conf: exclude adt-manual/*.rst Oleksandr Kravchuk (1): ell: update to 0.33 Ovidiu Panait (1): libxml2: Fix CVE-2020-24977 Peter A. Bigot (2): bluez5: fix builds that require ell support timezone: include leap second data in tzdata-core Peter Bergin (1): systemd: avoid failing if no udev rules provided Pierre-Jean Texier (2): libubootenv: upgrade 0.3 -> 0.3.1 diffoscope: upgrade 158 -> 160 Quentin Schulz (16): sphinx: brief-yoctoprojectqs: remove redundant welcome sphinx: brief-yoctoprojectqs: fix ambiguous note for cyclone5 example sphinx: brief-yoctoprojectqs: add missing boilerplate sphinx: overview-manual: add link to AUH how-to section sphinx: overview-manual: fix bitbake basic explanation sphinx: brief-yoctoprojectqs: add note on branch consistency between layers sphinx: what-i-wish-id-known: update "don't be fooled by doc search results" sphinx: overview-manual: remove highlight in bold section sphinx: replace special quotes with single and double quotes sphinx: fix incorrect indentations sphinx: brief-yoctoprojectqs: put other distros note after Ubuntu-specific packages sphinx: fix a few typos or missing/too many words sphinx: "highlight" some variables, tasks or files sphinx: fix or add missing links and remove mention of Eclipse workflow ref-manual: examples: hello-autotools: upgrade to 2.10 ref-manual: examples: libxpm: add relative path to .inc Rahul Kumar (1): systemd-serialgetty: Fix sed expression quoting Rasmus Villemoes (1): kernel.bbclass: run do_symlink_kernsrc before do_patch Richard Purdie (74): nativesdk-sdk-provides-dummy: Add /bin/sh bitbake: fetch2/wget: Remove buffering parameter bitbake: cooker: Ensure parse_quit thread is closed down bitbake: cooker: Explictly shut down the sync thread bitbake: fetch2: Drop cups.org from wget status checks bitbake: build/msg: Cleanup verbose option handling bitbake: cooker/cookerdata/main: Improve loglevel handling bitbake: cookerdata: Ensure UI options are updated to the server bitbake: cooker/cookerdata: Ensure UI event log is updated from commandline bitbake: cooker: Defer configuration init to after UI connection bitbake: server/process: Move the socket code to server process only bitbake: main/server/process: Drop configuration object passing bitbake: cooker: Ensure BB_ORIGENV is updated by changes to configuration.env bitbake: server/process: Log extra threads at exit bitbake: server/process: Add bitbake-server and exec() a new server process bitbake: runqueue: Don't use sys.argv bitbake: cooker: Ensure cooker's enviroment is updated on updateConfig connman-gnome/matchbox-desktop: Remove file:// globbing selftest/recipetool: Drop globbing SRC_URI test, no longer supported local.conf.sample: Document memory resident bitbake bitbake: fetch2: Drop globbing supprt in file:// SRC_URIs bitbake: server/process: Use sys.executable for bitbake-server bitbake: process: Avoid bb.utils.timeout bitbake: utils: Drop broken timeout function bitbake: server/process: Fix typo in code causing tracebacks oeqa/selftest: Apply patch to fix cpio build with -fno-common runqemu: Show an error for conflicting graphics options lttng: Move platform logic to dedicated inc file patchelf: upgrade 0.11 -> 0.12 build-appliance/packagegroup-core-base-utils: Replace dhcp-client/dhcp-server with dhcpcd/kea selftest/prservice: Improve test failure message iputils: Adapt ${PN}-tftpd package dependency to PACKAGECONFIG bitbake: process/knotty: Improve early exception handling bitbake: cooker/cookerdata: Use BBHandledException, not sys.exit() bitbake: cookerdata: Fix exception raise statements bitbake: process: Avoid printing binary strings for leftover processes bitbake: server/process: Ensure logging is flushed bitbake: server/process: Don't show tracebacks if the lockfile is removed bitbake: cooker: Ensure parser replacement calls parser final_cleanup bitbake: cooker: Assign a name to the sync thread to aid debugging bitbake: server/process: Ensure we don't keep looping if some other server is started bitbake: server/process: Prefix the log data with pid/time information bitbake: server/process: Note when commands complete in logs bitbake: cooker: Ensure parser is cleaned up runqemu: Add a hook to allow it to renice bitbake: cooker: Avoid parser deadlocks bitbake: cooker: Ensure parser worker signal handlers are default selftest/signing: Ensure build path relocation is safe oeqa/concurrencytest: Improve builddir path manipulations bitbake: cooker/command: Fix disconnection handling bitbake: tinfoil: Ensure sockets don't leak even when exceptions occur bitbake: tests/fetch: Move away from problematic freedesktop.org urls bitbake: sphinx: Enhance the sphinx experience/nagivation with: bitbake: sphinx: theme_override: Use bold for emphasis text Revert "qemu: always define unknown_lock_type" Revert "core-image-sato: qemumips use 512 mem" sphinx: Organize top level docs sphinx: releases.rst: Add index/links to docs for previous releases sphinx: boilerplate.rst: Drop versions notes as we have better navigation now sphinx: boilerplate.rst: Sphinx puts the copyright elsewhere sphinx: history: Move revision history to its own section sphinx: manuals: Move boilerplate after toctree sphinx: Add support for multiple docs version sphinx: index.rst: Fix links sphinx: ref-system-requirements: Improve formatting of the notes sections, merging them sphinx: ref-manual links fixes and many other cleanups to import sphinx: dev-manual: Various URL, code block and other fixes to imported data sphinx: sdk-manual: Various URL, code block and other fixes to imported data sphinx: kernel-dev: Various URL, code block and other fixes to imported data sphinx: theme_override: Use bold for emphasis text sphinx: ref-tasks: Add populate_sdk_ext task definition sphinx: ref-manual/migration: Split each release into its own file sphinx: overview-manual: Various URL, code block and other fixes to imported data build-appliance-image: Update to master head revision Robert Yang (3): bitbake: cooker.py: Save prioritized BBFILES to BBFILES_PRIORITIZED bitbake: utils.py: get_file_layer(): Exit the loop when file is matched bitbake: utils.py: get_file_layer(): Improve performance Ross Burton (25): package.bbclass: explode the RPROVIDES so we don't think the versions are provides elfutils: silence a new QA warning insane: improve gnu-hash-style warning gdk-pixbuf: add tests PACKAGECONFIG debianutils: change SRC_URI to use snapshot.debian.org insane: only load real files as ELF autoconf: consolidate SRC_URI autoconf: consolidate DEPENDS kea: no need to depend on kea-native kea: don't use PACKAGECONFIG inappropriately kea: bump to 1.7.10 help2man: rewrite recipe local.conf.sample.extended: remove help2man reference curl: add vendors to CVE_PRODUCT to exclude false positives harfbuzz: update patch status harfbuzz: fix a build race around hb-version.h cmake: whitelist CVE-2016-10642 ncurses: remove config.cache qemu: fix CVE-2020-14364 cve-update-db-native: remove unused import cve-update-db-native: add more logging when fetching cve-update-db-native: use fetch task alsa-plugins: improve .la removal sato-screenshot: improve .la removal buildhistory-diff: use BUILDDIR to know where buildhistory is Saul Wold (1): gnupg: uprev 2.2.22 -> 2.2.23 Stacy Gaikovaia (2): bison: uprev from 3.7.1 to 3.7.2 valgrind: fix memcheck vgtests remove fullpath-after flags Steve Sakoman (1): xinput-calibrator: change SRC_URI to branch with libinput support Sumit Garg (1): insane: fix gnu-hash-style check TeohJayShen (1): oeqa/runtime: add test for matchbox-terminal Tim Orling (1): sphinx: toaster-manual: fix vars, links, code blocks Vijai Kumar K (2): image_types_wic: Add ASSUME_PROVIDED to WICVARS wic: misc: Add /bin to the list of searchpaths Yanfei Xu (1): kernel-yocto: only replace leading -I in include paths Yi Zhao (1): glib-networking: add ptest Zhixiong Chi (1): gnutls: CVE-2020-24659 akuster (8): log4cplus: move meta-oe pkg to core kea: Move from meta-networking maintainers.inc: Add me as kea & log4plus maintainer. dhcpcd: Move from meta-network as OE-Core needs a client maintainers.inc: Add me as dhcpcd maintainer dhcp: remove from core bind: Add 9.16.x bind: 9.11 remove hongxu (1): sysstat: fix installed-vs-shipped QA Issue in systemd zangrc (4): libcap:upgrade 2.42 -> 2.43 libcap-ng:upgrade 0.7.10 -> 0.7.11 libgpg-error:upgrade 1.38 -> 1.39 at-spi2-core:upgrade 2.36.0 -> 2.36.1 Signed-off-by: Andrew Geissler <geissonator@yahoo.com> Change-Id: I5542f5eea751a2641342e945725fd687cd74bebe
Diffstat (limited to 'poky/documentation/ref-manual/faq.rst')
-rw-r--r--poky/documentation/ref-manual/faq.rst451
1 files changed, 451 insertions, 0 deletions
diff --git a/poky/documentation/ref-manual/faq.rst b/poky/documentation/ref-manual/faq.rst
new file mode 100644
index 000000000..2d2aaad0a
--- /dev/null
+++ b/poky/documentation/ref-manual/faq.rst
@@ -0,0 +1,451 @@
+.. SPDX-License-Identifier: CC-BY-2.0-UK
+
+***
+FAQ
+***
+
+**Q:** How does Poky differ from `OpenEmbedded <http://www.openembedded.org/>`__?
+
+**A:** The term ``Poky`` refers to the specific reference build
+system that the Yocto Project provides. Poky is based on
+:term:`OpenEmbedded-Core (OE-Core)` and :term:`BitBake`. Thus, the
+generic term used here for the build system is the "OpenEmbedded build
+system." Development in the Yocto Project using Poky is closely tied to
+OpenEmbedded, with changes always being merged to OE-Core or BitBake
+first before being pulled back into Poky. This practice benefits both
+projects immediately.
+
+**Q:** My development system does not meet the required Git, tar, and
+Python versions. In particular, I do not have Python 3.5.0 or greater.
+Can I still use the Yocto Project?
+
+**A:** You can get the required tools on your host development system a
+couple different ways (i.e. building a tarball or downloading a
+tarball). See the "`Required Git, tar, Python and gcc
+Versions <#required-git-tar-python-and-gcc-versions>`__" section for
+steps on how to update your build tools.
+
+**Q:** How can you claim Poky / OpenEmbedded-Core is stable?
+
+**A:** There are three areas that help with stability;
+
+- The Yocto Project team keeps :term:`OpenEmbedded-Core (OE-Core)` small and
+ focused, containing around 830 recipes as opposed to the thousands
+ available in other OpenEmbedded community layers. Keeping it small
+ makes it easy to test and maintain.
+
+- The Yocto Project team runs manual and automated tests using a small,
+ fixed set of reference hardware as well as emulated targets.
+
+- The Yocto Project uses an autobuilder, which provides continuous
+ build and integration tests.
+
+**Q:** How do I get support for my board added to the Yocto Project?
+
+**A:** Support for an additional board is added by creating a Board
+Support Package (BSP) layer for it. For more information on how to
+create a BSP layer, see the
+":ref:`dev-manual/dev-manual-common-tasks:understanding and creating layers`"
+section in the Yocto Project Development Tasks Manual and the
+:doc:`../bsp-guide/bsp-guide`.
+
+Usually, if the board is not completely exotic, adding support in the
+Yocto Project is fairly straightforward.
+
+**Q:** Are there any products built using the OpenEmbedded build system?
+
+**A:** The software running on the `Vernier
+LabQuest <http://vernier.com/labquest/>`__ is built using the
+OpenEmbedded build system. See the `Vernier
+LabQuest <http://www.vernier.com/products/interfaces/labq/>`__ website
+for more information. There are a number of pre-production devices using
+the OpenEmbedded build system and the Yocto Project team announces them
+as soon as they are released.
+
+**Q:** What does the OpenEmbedded build system produce as output?
+
+**A:** Because you can use the same set of recipes to create output of
+various formats, the output of an OpenEmbedded build depends on how you
+start it. Usually, the output is a flashable image ready for the target
+device.
+
+**Q:** How do I add my package to the Yocto Project?
+
+**A:** To add a package, you need to create a BitBake recipe. For
+information on how to create a BitBake recipe, see the
+":ref:`dev-manual/dev-manual-common-tasks:writing a new recipe`"
+section in the Yocto Project Development Tasks Manual.
+
+**Q:** Do I have to reflash my entire board with a new Yocto Project
+image when recompiling a package?
+
+**A:** The OpenEmbedded build system can build packages in various
+formats such as IPK for OPKG, Debian package (``.deb``), or RPM. You can
+then upgrade the packages using the package tools on the device, much
+like on a desktop distribution such as Ubuntu or Fedora. However,
+package management on the target is entirely optional.
+
+**Q:** I see the error
+'``chmod: XXXXX new permissions are r-xrwxrwx, not r-xr-xr-x``'. What is
+wrong?
+
+**A:** You are probably running the build on an NTFS filesystem. Use
+``ext2``, ``ext3``, or ``ext4`` instead.
+
+**Q:** I see lots of 404 responses for files when the OpenEmbedded build
+system is trying to download sources. Is something wrong?
+
+**A:** Nothing is wrong. The OpenEmbedded build system checks any
+configured source mirrors before downloading from the upstream sources.
+The build system does this searching for both source archives and
+pre-checked out versions of SCM-managed software. These checks help in
+large installations because it can reduce load on the SCM servers
+themselves. The address above is one of the default mirrors configured
+into the build system. Consequently, if an upstream source disappears,
+the team can place sources there so builds continue to work.
+
+**Q:** I have machine-specific data in a package for one machine only
+but the package is being marked as machine-specific in all cases, how do
+I prevent this?
+
+**A:** Set ``SRC_URI_OVERRIDES_PACKAGE_ARCH`` = "0" in the ``.bb`` file
+but make sure the package is manually marked as machine-specific for the
+case that needs it. The code that handles
+``SRC_URI_OVERRIDES_PACKAGE_ARCH`` is in the
+``meta/classes/base.bbclass`` file.
+
+**Q:** I'm behind a firewall and need to use a proxy server. How do I do
+that?
+
+**A:** Most source fetching by the OpenEmbedded build system is done by
+``wget`` and you therefore need to specify the proxy settings in a
+``.wgetrc`` file, which can be in your home directory if you are a
+single user or can be in ``/usr/local/etc/wgetrc`` as a global user
+file.
+
+Following is the applicable code for setting various proxy types in the
+``.wgetrc`` file. By default, these settings are disabled with comments.
+To use them, remove the comments: ::
+
+ # You can set the default proxies for Wget to use for http, https, and ftp.
+ # They will override the value in the environment.
+ #https_proxy = http://proxy.yoyodyne.com:18023/
+ #http_proxy = http://proxy.yoyodyne.com:18023/
+ #ftp_proxy = http://proxy.yoyodyne.com:18023/
+
+ # If you do not want to use proxy at all, set this to off.
+ #use_proxy = on
+
+The Yocto Project also includes a
+``meta-poky/conf/site.conf.sample`` file that shows how to configure CVS
+and Git proxy servers if needed. For more information on setting up
+various proxy types and configuring proxy servers, see the
+":yocto_wiki:`Working Behind a Network Proxy </wiki/Working_Behind_a_Network_Proxy>`"
+Wiki page.
+
+**Q:** What's the difference between target and target\ ``-native``?
+
+**A:** The ``*-native`` targets are designed to run on the system being
+used for the build. These are usually tools that are needed to assist
+the build in some way such as ``quilt-native``, which is used to apply
+patches. The non-native version is the one that runs on the target
+device.
+
+**Q:** I'm seeing random build failures. Help?!
+
+**A:** If the same build is failing in totally different and random
+ways, the most likely explanation is:
+
+- The hardware you are running the build on has some problem.
+
+- You are running the build under virtualization, in which case the
+ virtualization probably has bugs.
+
+The OpenEmbedded build system processes a massive amount of data that
+causes lots of network, disk and CPU activity and is sensitive to even
+single-bit failures in any of these areas. True random failures have
+always been traced back to hardware or virtualization issues.
+
+**Q:** When I try to build a native recipe, the build fails with
+``iconv.h`` problems.
+
+**A:** If you get an error message that indicates GNU ``libiconv`` is
+not in use but ``iconv.h`` has been included from ``libiconv``, you need
+to check to see if you have a previously installed version of the header
+file in ``/usr/local/include``.
+::
+
+ #error GNU libiconv not in use but included iconv.h is from libiconv
+
+If you find a previously installed
+file, you should either uninstall it or temporarily rename it and try
+the build again.
+
+This issue is just a single manifestation of "system leakage" issues
+caused when the OpenEmbedded build system finds and uses previously
+installed files during a native build. This type of issue might not be
+limited to ``iconv.h``. Be sure that leakage cannot occur from
+``/usr/local/include`` and ``/opt`` locations.
+
+**Q:** What do we need to ship for license compliance?
+
+**A:** This is a difficult question and you need to consult your lawyer
+for the answer for your specific case. It is worth bearing in mind that
+for GPL compliance, there needs to be enough information shipped to
+allow someone else to rebuild and produce the same end result you are
+shipping. This means sharing the source code, any patches applied to it,
+and also any configuration information about how that package was
+configured and built.
+
+You can find more information on licensing in the
+":ref:`overview-manual/overview-manual-development-environment:licensing`"
+section in the Yocto
+Project Overview and Concepts Manual and also in the
+":ref:`dev-manual/dev-manual-common-tasks:maintaining open source license compliance during your product's lifecycle`"
+section in the Yocto Project Development Tasks Manual.
+
+**Q:** How do I disable the cursor on my touchscreen device?
+
+**A:** You need to create a form factor file as described in the
+":ref:`bsp-filelayout-misc-recipes`" section in
+the Yocto Project Board Support Packages (BSP) Developer's Guide. Set
+the ``HAVE_TOUCHSCREEN`` variable equal to one as follows:
+::
+
+ HAVE_TOUCHSCREEN=1
+
+**Q:** How do I make sure connected network interfaces are brought up by
+default?
+
+**A:** The default interfaces file provided by the netbase recipe does
+not automatically bring up network interfaces. Therefore, you will need
+to add a BSP-specific netbase that includes an interfaces file. See the
+":ref:`bsp-filelayout-misc-recipes`" section in
+the Yocto Project Board Support Packages (BSP) Developer's Guide for
+information on creating these types of miscellaneous recipe files.
+
+For example, add the following files to your layer: ::
+
+ meta-MACHINE/recipes-bsp/netbase/netbase/MACHINE/interfaces
+ meta-MACHINE/recipes-bsp/netbase/netbase_5.0.bbappend
+
+**Q:** How do I create images with more free space?
+
+**A:** By default, the OpenEmbedded build system creates images that are
+1.3 times the size of the populated root filesystem. To affect the image
+size, you need to set various configurations:
+
+- *Image Size:* The OpenEmbedded build system uses the
+ :term:`IMAGE_ROOTFS_SIZE` variable to define
+ the size of the image in Kbytes. The build system determines the size
+ by taking into account the initial root filesystem size before any
+ modifications such as requested size for the image and any requested
+ additional free disk space to be added to the image.
+
+- *Overhead:* Use the
+ :term:`IMAGE_OVERHEAD_FACTOR` variable
+ to define the multiplier that the build system applies to the initial
+ image size, which is 1.3 by default.
+
+- *Additional Free Space:* Use the
+ :term:`IMAGE_ROOTFS_EXTRA_SPACE`
+ variable to add additional free space to the image. The build system
+ adds this space to the image after it determines its
+ ``IMAGE_ROOTFS_SIZE``.
+
+**Q:** Why don't you support directories with spaces in the pathnames?
+
+**A:** The Yocto Project team has tried to do this before but too many
+of the tools the OpenEmbedded build system depends on, such as
+``autoconf``, break when they find spaces in pathnames. Until that
+situation changes, the team will not support spaces in pathnames.
+
+**Q:** How do I use an external toolchain?
+
+**A:** The toolchain configuration is very flexible and customizable. It
+is primarily controlled with the ``TCMODE`` variable. This variable
+controls which ``tcmode-*.inc`` file to include from the
+``meta/conf/distro/include`` directory within the :term:`Source Directory`.
+
+The default value of ``TCMODE`` is "default", which tells the
+OpenEmbedded build system to use its internally built toolchain (i.e.
+``tcmode-default.inc``). However, other patterns are accepted. In
+particular, "external-\*" refers to external toolchains. One example is
+the Sourcery G++ Toolchain. The support for this toolchain resides in
+the separate ``meta-sourcery`` layer at
+http://github.com/MentorEmbedded/meta-sourcery/.
+
+In addition to the toolchain configuration, you also need a
+corresponding toolchain recipe file. This recipe file needs to package
+up any pre-built objects in the toolchain such as ``libgcc``,
+``libstdcc++``, any locales, and ``libc``.
+
+**Q:** How does the OpenEmbedded build system obtain source code and
+will it work behind my firewall or proxy server?
+
+**A:** The way the build system obtains source code is highly
+configurable. You can setup the build system to get source code in most
+environments if HTTP transport is available.
+
+When the build system searches for source code, it first tries the local
+download directory. If that location fails, Poky tries
+:term:`PREMIRRORS`, the upstream source, and then
+:term:`MIRRORS` in that order.
+
+Assuming your distribution is "poky", the OpenEmbedded build system uses
+the Yocto Project source ``PREMIRRORS`` by default for SCM-based
+sources, upstreams for normal tarballs, and then falls back to a number
+of other mirrors including the Yocto Project source mirror if those
+fail.
+
+As an example, you could add a specific server for the build system to
+attempt before any others by adding something like the following to the
+``local.conf`` configuration file: ::
+
+ PREMIRRORS_prepend = "\
+ git://.*/.* http://www.yoctoproject.org/sources/ \n \
+ ftp://.*/.* http://www.yoctoproject.org/sources/ \n \
+ http://.*/.* http://www.yoctoproject.org/sources/ \n \
+ https://.*/.* http://www.yoctoproject.org/sources/ \n"
+
+These changes cause the build system to intercept Git, FTP, HTTP, and
+HTTPS requests and direct them to the ``http://`` sources mirror. You
+can use ``file://`` URLs to point to local directories or network shares
+as well.
+
+Aside from the previous technique, these options also exist:
+::
+
+ BB_NO_NETWORK = "1"
+
+This statement tells BitBake to issue an error
+instead of trying to access the Internet. This technique is useful if
+you want to ensure code builds only from local sources.
+
+Here is another technique:
+::
+
+ BB_FETCH_PREMIRRORONLY = "1"
+
+This statement
+limits the build system to pulling source from the ``PREMIRRORS`` only.
+Again, this technique is useful for reproducing builds.
+
+Here is another technique:
+::
+
+ BB_GENERATE_MIRROR_TARBALLS = "1"
+
+This
+statement tells the build system to generate mirror tarballs. This
+technique is useful if you want to create a mirror server. If not,
+however, the technique can simply waste time during the build.
+
+Finally, consider an example where you are behind an HTTP-only firewall.
+You could make the following changes to the ``local.conf`` configuration
+file as long as the ``PREMIRRORS`` server is current: ::
+
+ PREMIRRORS_prepend = "\
+ ftp://.*/.* http://www.yoctoproject.org/sources/ \n \
+ http://.*/.* http://www.yoctoproject.org/sources/ \n \
+ https://.*/.* http://www.yoctoproject.org/sources/ \n"
+ BB_FETCH_PREMIRRORONLY = "1"
+
+These changes would cause the build system to successfully fetch source
+over HTTP and any network accesses to anything other than the
+``PREMIRRORS`` would fail.
+
+The build system also honors the standard shell environment variables
+``http_proxy``, ``ftp_proxy``, ``https_proxy``, and ``all_proxy`` to
+redirect requests through proxy servers.
+
+.. note::
+
+ You can find more information on the
+ ":yocto_wiki:`Working Behind a Network Proxy </wiki/Working_Behind_a_Network_Proxy>`"
+ Wiki page.
+
+**Q:** Can I get rid of build output so I can start over?
+
+**A:** Yes - you can easily do this. When you use BitBake to build an
+image, all the build output goes into the directory created when you run
+the build environment setup script (i.e.
+````` <#structure-core-script>`__). By default, this :term:`Build Directory`
+is named ``build`` but can be named
+anything you want.
+
+Within the Build Directory, is the ``tmp`` directory. To remove all the
+build output yet preserve any source code or downloaded files from
+previous builds, simply remove the ``tmp`` directory.
+
+**Q:** Why do ``${bindir}`` and ``${libdir}`` have strange values for
+``-native`` recipes?
+
+**A:** Executables and libraries might need to be used from a directory
+other than the directory into which they were initially installed.
+Complicating this situation is the fact that sometimes these executables
+and libraries are compiled with the expectation of being run from that
+initial installation target directory. If this is the case, moving them
+causes problems.
+
+This scenario is a fundamental problem for package maintainers of
+mainstream Linux distributions as well as for the OpenEmbedded build
+system. As such, a well-established solution exists. Makefiles,
+Autotools configuration scripts, and other build systems are expected to
+respect environment variables such as ``bindir``, ``libdir``, and
+``sysconfdir`` that indicate where executables, libraries, and data
+reside when a program is actually run. They are also expected to respect
+a ``DESTDIR`` environment variable, which is prepended to all the other
+variables when the build system actually installs the files. It is
+understood that the program does not actually run from within
+``DESTDIR``.
+
+When the OpenEmbedded build system uses a recipe to build a
+target-architecture program (i.e. one that is intended for inclusion on
+the image being built), that program eventually runs from the root file
+system of that image. Thus, the build system provides a value of
+"/usr/bin" for ``bindir``, a value of "/usr/lib" for ``libdir``, and so
+forth.
+
+Meanwhile, ``DESTDIR`` is a path within the :term:`Build Directory`.
+However, when the recipe builds a
+native program (i.e. one that is intended to run on the build machine),
+that program is never installed directly to the build machine's root
+file system. Consequently, the build system uses paths within the Build
+Directory for ``DESTDIR``, ``bindir`` and related variables. To better
+understand this, consider the following two paths where the first is
+relatively normal and the second is not: ::
+
+ /home/maxtothemax/poky-bootchart2/build/tmp/work/i586-poky-linux/zlib/
+ 1.2.8-r0/sysroot-destdir/usr/bin
+
+ /home/maxtothemax/poky-bootchart2/build/tmp/work/x86_64-linux/
+ zlib-native/1.2.8-r0/sysroot-destdir/home/maxtothemax/poky-bootchart2/
+ build/tmp/sysroots/x86_64-linux/usr/bin
+
+.. note::
+
+ Due to these lengthy examples, the paths are artificially broken
+ across lines for readability.
+
+Even if the paths look unusual,
+they both are correct - the first for a target and the second for a
+native recipe. These paths are a consequence of the ``DESTDIR``
+mechanism and while they appear strange, they are correct and in
+practice very effective.
+
+**Q:** The files provided by my ``*-native`` recipe do not appear to be
+available to other recipes. Files are missing from the native sysroot,
+my recipe is installing to the wrong place, or I am getting permissions
+errors during the do_install task in my recipe! What is wrong?
+
+**A:** This situation results when a build system does not recognize the
+environment variables supplied to it by :term:`BitBake`. The
+incident that prompted this FAQ entry involved a Makefile that used an
+environment variable named ``BINDIR`` instead of the more standard
+variable ``bindir``. The makefile's hardcoded default value of
+"/usr/bin" worked most of the time, but not for the recipe's ``-native``
+variant. For another example, permissions errors might be caused by a
+Makefile that ignores ``DESTDIR`` or uses a different name for that
+environment variable. Check the the build system to see if these kinds
+of issues exist.