9ac4c8b11c
If /init is just a symlink to /sbin/init, debugfs creation fails with the following error: ERROR: Error: The image creation script '<...>/debugfs.create_image.cpio' returned 1: touch: cannot touch '<...>/cpio_append/init': Permission denied WARNING: exit code 1 from a shell command. ERROR: Function failed: do_rootfs The reason is that IMAGE_CMD_cpio() is run twice on the same WORKDIR. The first run creates a symlink in WORKDIR/cpio_append/init to point to /sbin/init, while the 2nd run then tries to 'touch' that link, which will fail, of course since /sbin/init is not usually writable by non-root users. Fix this by providing knowledge to the IMAGE_CMD_xxx() scripts with regards to the fact that they are being executed in the context of debugfs creation. The IMAGE_CMD_cpio() can now be intelligent in the sense that it can avoid all additional symlink handling during the debugfs run. The symlinks do not need to be part of the debugfs, so we can skip that part altogether in that case. (From OE-Core rev: 659ae1d7df28115429f6f31450fad6d1f86e3031) Signed-off-by: André Draszik <adraszik@tycoint.com> Signed-off-by: Ross Burton <ross.burton@intel.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/documentation
OpenEmbedded-Core is a layer containing the core metadata for current versions of OpenEmbedded. It is distro-less (can build a functional image with DISTRO = "nodistro") and contains only emulated machine support.
For information about OpenEmbedded, see the OpenEmbedded website: http://www.openembedded.org/
Where to Send Patches
As Poky is an integration repository (built using a tool called combo-layer), patches against the various components should be sent to their respective upstreams:
bitbake: Git repository: http://git.openembedded.org/bitbake/ Mailing list: bitbake-devel@lists.openembedded.org
documentation: Git repository: http://git.yoctoproject.org/cgit/cgit.cgi/yocto-docs/ Mailing list: yocto@yoctoproject.org
meta-poky, meta-yocto-bsp: Git repository: http://git.yoctoproject.org/cgit/cgit.cgi/meta-yocto(-bsp) Mailing list: poky@yoctoproject.org
Everything else should be sent to the OpenEmbedded Core mailing list. If in doubt, check the oe-core git repository for the content you intend to modify. Before sending, be sure the patches apply cleanly to the current oe-core git repository.
Git repository: http://git.openembedded.org/openembedded-core/
Mailing list: openembedded-core@lists.openembedded.org
Note: The scripts directory should be treated with extra care as it is a mix of oe-core and poky-specific files.