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mirror of https://git.yoctoproject.org/poky synced 2026-05-31 00:39:46 +00:00
Tom Zanussi d6cbbee29c wic: Use overhead factor when creating partitions from rootfs directories
When creating partitions sized to given rootfs directories, filesystem
creation could fail in cases where the calculated target partition
size was too small to contain the filesystem created using mkfs.  This
occurred in particular when creating partitions to contain very large
filesystems such as those containing sdk image artifacts.

This same limition is present in the oe-core image creation classes,
which can be readily see by changing IMAGE_OVERHEAD_FACTOR from the
default 1.3 to 1.0 and building a sato-sdk image.

It should be possible to calculate required sizes exactly given the
source rootfs and target filesystem types, but for now, to address the
specific problem users are hitting in such situations, we'll just do
exactly what oe-core does and define and use an IMAGE_OVERHEAD_FACTOR
or 1.3 in those cases.

Fixes [YOCTO #6863].

(From OE-Core rev: bbaef3ff5833fc1d97b7b028d7770834f62789da)

(From OE-Core rev: c376804d451a200bf697d3f34e68d58726f5233c)

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2014-12-31 10:18:22 +00:00
2014-01-02 12:58:54 +00:00
2014-01-02 12:58:54 +00:00

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, patches against the various components
should be sent to their respective upstreams.

bitbake:
    bitbake-devel@lists.openembedded.org

meta-yocto:
    poky@yoctoproject.org

Most 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.
    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.
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