mirror of
https://git.yoctoproject.org/poky
synced 2026-06-05 02:20:12 +00:00
Andrea Adami
f8bf4e2b16
* "All 2.6 Linux kernels contain a gzipped "cpio" format archive, which is * extracted into rootfs when the kernel boots up." * (http://www.kernel.org/doc/Documentation/filesystems/ramfs-rootfs-initramfs.txt) * * In some cases it can be useful to take advantage of this ability and embed your * customized rootfs ("the move to early userspace is necessary because finding * and mounting the real root device is complex"). * * Therefore, some code was added and since 2009 OpenEmbedded metadata * provides a convenient way to include your initramfs by setting * INITRAMFS_IMAGE = "your_initramfs_image.bb" * and specifying the chosen output format in the initramfs image recipe, e.g. * IMAGE_FSTYPES = "cpio.gz cpio.lzma" * * * Patch was imported from the OpenEmbedded git server * (git://git.openembedded.org/openembedded) * * Add satndalone task "builtin_initramfs". * commit 72761e468bb3e905459f2b81ce1bc4d80419481f * (From OE-Core rev: 19bda7f2c2dac6363468a49295c38f2095c67c98) Signed-off-by:Paul Sokolovsky <pmiscml@gmail.com> * * 'Remove usage of non-standard variables (DEPLOY_TO) and random renaming * of output.' * commit 456ba7ffd159821e86ad7ad4b66ec7d5790bd054 * Richard Purdie <rpurdie@rpsys.net> * * 'Fis typo in do_builtin_initramfs.' * commit 37f2fe4b801df832e93553a08eff24fec736c7d4 * Signed-off-by:Paul Sokolovsky <pmiscml@gmail.com> * * 'comment initramfs stuff till rootfs locking works properly (initramfs * should be optional as well)' * commit 2818d8b7be1a0d9a59ad3528091d47517d59328b * Signed-off-by: Koen Kooi <koen@openembedded.org> * * 'get initramfs stuff working * commit 1642b3e8fc81c666713951fdd4e7ff9a50d1c5a8 * Signed-off-by: Thomas Kunze <thommycheck@gmx.de> * * 'Fix INITRAMFS logic to stop breaking builds for people not using it' * commit dcf3049eb9eedf0838af59969b3f70a43298d3d7 * Signed-off-by: Richard Purdie <rpurdie@rpsys.net> * * '-change initramfs-logic' * commit 3e3f297457138e96e2b652658675796853eb0293 * Signed-off-by: Thomas Kunze <thommycheck@gmx.de> * * 'move initramfs stuff to configure so we can do postprocessing * on it with do_configure_append' * commit fc03e2be0b4470748a8b7707cea7293303adc424 * Signed-off-by: Koen Kooi <koen@openembedded.org> * * 'copy gz, lzo, lzma initramfs cpio images.' * commit 572abc3fdd1076ca35d8c15d269cc9d862101805 * Signed-off-by: Andrea Adami <andrea.adami@gmail.com> * * 'move the kernel size check to linux-kexecboot.inc.' * commit 45f82a941c77e9d747814fa1e337ba803475d327 * Signed-off-by: Andrea Adami <andrea.adami@gmail.com> * * Finally, two refinements as discussed on openembedded-core * mailing list: * - replace "if image != '' and image is not None:" with "if image" * - add cpio.xz support Signed-off-by: Andrea Adami <andrea.adami@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Poky
====
Poky is an integration of various components to form a complete prepackaged
build system and development environment. It features support for building
customised embedded device style images. There are reference demo images
featuring a X11/Matchbox/GTK themed UI called Sato. The system supports
cross-architecture application development using QEMU emulation and a
standalone toolchain and SDK with IDE integration.
Additional information on the specifics of hardware that Poky supports
is available in README.hardware. Further hardware support can easily be added
in the form of layers which extend the systems capabilities in a modular way.
As an integration layer Poky consists of several upstream projects such as
BitBake, OpenEmbedded-Core, Yocto documentation and various sources of information
e.g. for the hardware support. Poky is in turn a component of the Yocto Project.
The Yocto Project has extensive documentation about the system including a
reference manual which can be found at:
http://yoctoproject.org/community/documentation
For information about OpenEmbedded see their website:
http://www.openembedded.org/