Yocto 工程快速入门

 参考:http://www.yoctoproject.org/docs/2.0/yocto-project-qs/yocto-project-qs.html

Build Host

安装linux发行版(Fedora, openSUSE, CentOS,Debian, 和Ubuntu) 的机器,并有最少50G的存储空间.

Git :  1.7.8 or greater

tar : 1.24 or greater

Python 2.7.3 or greater,不支持Python 3.x.

Build Host Packages

编译机器应该安装必须且合适的编译辅助包(工具).

Ubuntu and Debian

    $ sudo apt-get install gawk wget git-core diffstat unzip texinfogcc-multilib \

    build-essential chrpath socat libsdl1.2-dev xterm

                        

Fedora

    $ sudo dnf install gawk make wget tar bzip2 gzip python unzip perl patch\

    diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath \

    ccache perl-Data-Dumper perl-Text-ParseWords perl-Thread-Queue socat \

    findutils which SDL-devel xterm

                       

OpenSUSE

    $ sudo zypper install python gcc gcc-c++ git chrpath make wgetpython-xml \

    diffstat makeinfo python-curses patch socat libSDL-devel xterm

                       

CentOS

    $ sudo yum install gawk make wget tar bzip2 gzip python unzip perl patch\

    diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath socat\

    perl-Data-Dumper perl-Text-ParseWords perl-Thread-Queue SDL-devel xterm

 

The Yocto project

一个Yocto工程.

Git

$ git clonegit://git.yoctoproject.org/poky

$ git checkout -b jethro origin/jethro

Web:

https://www.yoctoproject.org/downloads

编译image:

实例:

下面以qemux86为实例,介绍如何编译一个Yocto的工程

$ cd ~/poky

$ git checkout -b jethro origin/jethro

$ source oe-init-build-env

配置local.conf , qemux86为默认,所以不需要修改.

$ bitbake core-image-sato

启动qemu:  $ runqemu qemux86

加入新的板卡支持

下面介绍在已有的Yocto工程里加入一个新板卡BSP=intel-corei7-64的支持.

下载:

$ git clone git://git.yoctoproject.org/meta-intel

配置:

$ bitbake-layers add-layer "$HOME/source/poky/meta-intel"

$ echo 'MACHINE = "intel-corei7-64"' >> conf/local.conf

或者

$ echo 'MACHINE = "intel-core2-32"' >> conf/local.conf

编译:

$ bitbake core-image-minimal

输出:

tmp/deploy/images/intel-corei7-64/core-image-minimal-intel-corei7-64.hddimg

写入磁盘: (U盘,硬盘,或者mmc )

$ sudo $HOME/source/poky/scripts/contrib/mkefidisk.sh HOST_DEVICE         tmp/deploy/images/intel-corei7-64/core-image-minimal-intel-corei7-64.hddimg TARGET_DEVICE

启动设备: EFI

     Shell> connect -r

     Shell> map -r

     Shell> fs0:

     Shell> bootx64  *** 32位: Shell> bootia32 

启动intel板卡:

$ sudo $HOME/source/poky/scripts/contrib/mkefidisk.sh HOST_DEVICE         tmp/deploy/images/intel-corei7-64/core-image-minimal-intel-corei7-64.hddimg TARGET_DEVICE