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→Building the Yocto image
=== Building the Yocto image ===
Please note that even building the basic root file system requires a few hours to complete the process on a mid-hi range desktop PC (4-6 cores, 8-12 GiB RAM), also depending on the Internet connection speed (all source are fetched from the network). Nearly 20GiB of disk space is required for the build. Moreover, building inside the DVDK adds some overhead, since the performances of a virtual machine are reduced if compared to the physical hardware. Thus, it's recommended to check the hardware capabilities of the host system and, when building with Yocto is required, developers should consider the following options:
* migrating the build system to a physical machine
* assuming that the host system has the required resources, extending the hardware capabilities of the default DVDK (eg: adding more cores and disk space)
Once completed the initialization phase, developers can launch the Yocto image build process with the following commands:
<pre>
$ cd ~/divelk/diva-bsp
* qt5-rootfs-image (root file system with Qt 5.1.1 libraries and examples)
* base-rootfs-image (minimal root file system)
The resulting files (kernel, device tree and u-boot binaries, plus root file system in a .tar.gz archive) will then be available inside the build/tmp/deploy/images/diva directory.
== 4.4 Building the software components outside Yocto ==
