install/yocto open rex

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Raspberry Pi with Yocto
=======================
Install dependency:
```
su
pacman -S diffstat chrpath cpio
exit
```
configure locals:
```
su
locale -a
edn /etc/locale.gen
unselect at minimum en_US.UTF-8 UTF-8
locale-gen
exit
```
1) set-up working directory:
----------------------------
```
mkdir -p openRexBsp
cd openRexBsp
```
2) Clone of Yocto:
------------------
```
git clone -b master git://git.yoctoproject.org/poky.git sources/poky --depth=30
```
3) Clone of meta de freescale:
---------------------------------
```
git clone -b master https://git.yoctoproject.org/git/meta-freescale sources/meta-freescale --depth=100
git clone -b master https://github.com/Freescale/fsl-community-bsp-base sources/base --depth=100
git clone -b master https://github.com/Freescale/meta-freescale-3rdparty sources/meta-freescale-3rdparty --depth=100
git clone -b master https://github.com/Freescale/meta-freescale-distro sources/meta-freescale-distro --depth=100
git clone -b master https://github.com/Freescale/Documentation sources/Documentation --depth=100
ln -s sources/base/README readme.md
ln -s sources/base/setup-environment setup-environment
```
4) Clone of meta Open Embedded:
-------------------------------
```
git clone -b master https://github.com/openembedded/meta-openembedded.git sources/meta-openembedded --depth=100
```
5) Force python 2.7:
--------------------
```
mkdir pythonBase2
cd pythonBase2
ln -s /usr/bin/python2.7 python
ln -s /usr/bin/python2.7-config python-config
export PATH=`pwd`:$PATH
cd ..
```
6) Initialize the configuration:
--------------------------------
```
source setup-environment build-openRex/
```
7) update configuration file:
-----------------------------
Open: ```conf/local.conf```
find: ```MACHINE ??= "qemux86"```
Remplace with: ```MACHINE ?= "raspberrypi2"```
find: ```PACKAGE_CLASSES ?= "package_rpm"```
Remplace with: ```PACKAGE_CLASSES ?= "package_deb"```
Add at the end:
```
BBMASK = "meta-raspberrypi/recipes-multimedia/libav|meta-raspberrypi/recipes-core/systemd"
```
Open: ```conf/bblayers.conf```
find:
```
BBLAYERS ?= " \
${HOME}/RASPBERRYPI/BSP/poky/meta \
${HOME}/RASPBERRYPI/BSP/poky/meta-yocto \
${HOME}/RASPBERRYPI/BSP/poky/meta-yocto-bsp \
"
```
Remplace with:
```
BBLAYERS ?= " \
${HOME}/RASPBERRYPI/BSP/poky/meta \
${HOME}/RASPBERRYPI/BSP/poky/meta-yocto \
${HOME}/RASPBERRYPI/BSP/poky/meta-yocto-bsp \
${HOME}/RASPBERRYPI/BSP/poky/meta-raspberrypi \
${HOME}/RASPBERRYPI/BSP/poky/meta-openembedded/meta-oe \
${HOME}/RASPBERRYPI/BSP/poky/meta-openembedded/meta-networking \
"
```
8) Build basic image:
---------------------
Simply run:
```
bitbake core-image-minimal
```
display result:
```
ls -l tmp/deploy/images/raspberrypi/
```
10) Burn image on the sd card:
------------------------------
```
cd tmp/deploy/images/raspberrypi/
sudo dd bs=1M if=core-image-minimal-raspberrypi.rpi-sdimg of=/dev/mmcblk0
```
11) All is ready:
-----------------
login: ```root```
pasword ```root```
some yocto options:
===================
in the file: ```conf/local.conf```
# mumber of distinct lib to compile at the same time
BB_NUMBER_THREADS = "4"
# number of thread fore eache build
PARALLEL_MAKE = "-j 4"
============