Support #618
Updated by Daniel Curtis over 9 years ago
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This is a guide for creating a Yocto linux image on Ubuntu 12.04.
h2. Prepare the Environment
* Make sure the system is up to date:
<pre>
sudo apt-get update && sudo apt-get upgade
</pre>
* Install a few prerequisite packages:
<pre>
sudo apt-get install apt-get install gawk wget git bitbake diffstat unzip texinfo gcc-multilib build-essential chrpath socat libsdl1.2-dev xterm
</pre>
h2. Download Prepare the Source Code
* Create a directory for the source code:
<pre>
mkdir ~/git && cd ~/git
</pre>
* Get the latest IoT Yocto Development Kit:
<pre>
git clone -b devkit-daisy git://git.yoctoproject.org/meta-intel-iot-devkit iotdk
cd iotdk
</pre>
* Source the @iot-devkit-init-build-env@ script:
<pre>
source iot-devkit-init-build-env
</pre>
h2. Build the Yocto Image
* Run bitbake to build iot-devkit-image:
<pre>
bitbake iot-devkit-image
</pre>
#* *NOTE*: There are many types of image targets for bitbake to use, such as:
<pre>
iot-devkit-image
iot-devkit-prof-dev-image
iot-devkit-prof-image
iot-devkit-spi-image
</pre>
* Fix the grub bitbake source:
<pre>
nano ~/git/iotdk/meta-quark-bsp/recipes-bsp/grub/grub_0.97.bb
</pre>
#* And the SRC_URI to the following:
<pre>
SRC_URI = "git://github.com/intel-iot-devkit/grub-fedora.git"
</pre>
* (Optional) To use the Hob GUI to assist in building, run:
<pre>
bitbake -u hob
</pre>
h3. Deploy the Yocto Image
The original files in the +Yocto image provided by Intel+ are:
* boot/grub/grub.cfg
* bzImage
* core-image-minimal-initramfs-clanton.cpio.gz
* grub.efi
* image-full-galileo-clanton.ext3
After the bitbake build process there will be lots of files in the @~/git/poky/build/tmp/deploy/images/genericx86@ including the files needed to copy over to the microSD Card, however there are many files that are unnecessary.
* Mount the microSD card:
<pre>
sudo mkdir /media/microsd
sudo mount /dev/mmcblk0p1 /media/microsd
</pre>
* Copy the required files to the microSD card:
<pre>
sudo cp -L ~/git/poky/build/tmp/deploy/images/genericx86/bzImage /media/microsd/bzImage
sudo cp -L ~/git/poky/build/tmp/deploy/images/genericx86/core-image-minimal-initramfs-genericx86.cpio.gz /media/microsd/core-image-minimal-initramfs-genericx86.cpio.gz
sudo cp -L ~/git/poky/build/tmp/deploy/images/genericx86/bootia32.efi /media/microsd/bootia32.efi
sudo cp -L ~/git/poky/build/tmp/deploy/images/genericx86/core-image-minimal-genericx86.ext3 /media/microsd/core-image-minimal-genericx86.ext3
</pre>
* Now create a grub configuration file:
<pre>
sudo mkdir -p /media/microsd/boot/grub
sudo nano /media/microsd/boot/grub/grub.conf
</pre>
#* And add the following:
<pre>
default 1
timeout 1
color white/blue white/cyan
title Clanton SVP kernel-SPI initrd-SPI IMR-On IO-APIC/HPET NoEMU
kernel --spi root=/dev/ram0 console=ttyS1,115200n8 earlycon=uart8250,mmio32,$EARLY_CON_ADDR_REPLACE,115200n8 reboot=efi,warm apic=debug rw
initrd --spi
title Clanton SVP kernel-MassStorage initrd-MassStorage image-full IMR-On IO-APIC/HPET NoEMU debug
root (hd0,0)
kernel /bzImage root=/dev/ram0 console=ttyS1,115200n8 earlycon=uart8250,mmio32,$EARLY_CON_ADDR_REPLACE,115200n8 reboot=efi,warm apic=debug rw LABEL=boot debugshell=5 rootimage=core-image-minimal-genericx86.ext3
initrd /core-image-minimal-initramfs-genericx86.cpio.gz
</pre>
* Sync and unmount the microSD card:
<pre>
sudo sync
sudo umount /media/microsd
</pre>
h2. Resources
* https://software.intel.com/en-us/blogs/2015/03/04/creating-a-yocto-image-for-the-intel-galileo-board-using-split-layers
* http://www.yoctoproject.org/docs/1.7.1/mega-manual/mega-manual.html
* http://www.yoctoproject.org/docs/1.7.1/bsp-guide/bsp-guide.html
* http://www.yoctoproject.org/docs/1.7.1/bitbake-user-manual/bitbake-user-manual.html
* http://wiki.ros.org/IntelGalileo/HydroGalileoInitialInstall
* http://www.malinov.com/Home/sergey-s-blog/intelgalileo-buildinglinuximage
* https://www.yoctoproject.org/downloads