Create yocto open rex

2017-07-29 12:06:04 +00:00 · 2017-07-29 12:06:04 +00:00 · 5e12821a47
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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 krogoth git://git.yoctoproject.org/poky.git sources/poky
+```
+
+3) Clone of meta de freescale:
+---------------------------------
+
+```
+git clone https://git.yoctoproject.org/git/meta-freescale sources/meta-freescale
+git clone https://github.com/Freescale/fsl-community-bsp-base sources/base
+git clone https://github.com/Freescale/meta-freescale-3rdparty sources/meta-freescale-3rdparty
+git clone https://github.com/Freescale/meta-freescale-distro sources/meta-freescale-distro
+git clone https://github.com/Freescale/Documentation sources/Documentation
+ln -s sources/base/README readme.md
+ln -s sources/base/setup-environment setup-environment
+
+```
+
+4) Clone of meta Open Embedded:
+-------------------------------
+
+```
+git clone -b krogoth https://github.com/openembedded/meta-openembedded.git sources/meta-openembedded
+```
+
+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"
+
+
+============