[ 物联网篇 ] 01 - NXP i.MX 8M Mini 环境的搭建

// 下载repo 工具 
curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo

// 下载源码 
mkdir imx-yocto-bsp
cd imx-yocto-bsp
repo init -u https://source.codeaurora.org/external/imx/imx-manifest -b imx-linux-rocko -m imx-4.9.88-2.0.0_ga.xml
repo sync

➜  imx-yocto-bsp ./repo init -u https://source.codeaurora.org/external/imx/imx-manifest -b imx-linux-rocko　-m　imx-4.9.88-2.0.0_ga.xml
fatal: Cannot get https://gerrit.googlesource.com/git-repo/clone.bundle
fatal: error [Errno 101] Network is unreachable
fatal: cloning the git-repo repository failed, will remove '.repo/repo' 

// 解决方案：　

先单独克隆repo,然后将git-repo里面的repo文件复制到bin目录，在同步源码的工作目录新建.repo文件夹，把git-repo重命名为repo复制到.repo目录下：
git clone https://gerrit-googlesource.lug.ustc.edu.cn/git-repo　

// 运行错误
➜  imx-yocto-bsp bitbake fsl-image-validation-imx
Traceback (most recent call last):
  File "/home/mike/Work/nxp-imx8/imx-yocto-bsp/sources/poky/bitbake/bin/bitbake", line 31, in <module>
    import bb
  File "/home/mike/Work/nxp-imx8/imx-yocto-bsp/sources/poky/bitbake/lib/bb/__init__.py", line 79, in <module>
    from bb import fetch2 as fetch
  File "/home/mike/Work/nxp-imx8/imx-yocto-bsp/sources/poky/bitbake/lib/bb/fetch2/__init__.py", line 1843, in <module>
    from . import clearcase
  File "/home/mike/Work/nxp-imx8/imx-yocto-bsp/sources/poky/bitbake/lib/bb/fetch2/clearcase.py", line 72, in <module>
    from   distutils import spawn
ImportError: cannot import name 'spawn'

// 解决方案
安装sudo apt-get install python3-distutils 之后解决

ERROR: Unable to start bitbake server
ERROR: Last 10 lines of server log for this session (/home/mike/Work/nxp-imx8/imx-yocto-bsp/bitbake-cookerdaemon.log):
    self.cooker = bb.cooker.BBCooker(self.configuration, self.featureset)
  File "/home/mike/Work/nxp-imx8/imx-yocto-bsp/sources/poky/bitbake/lib/bb/cooker.py", line 197, in __init__
    self.initConfigurationData()
  File "/home/mike/Work/nxp-imx8/imx-yocto-bsp/sources/poky/bitbake/lib/bb/cooker.py", line 356, in initConfigurationData
    self.databuilder.parseBaseConfiguration()
  File "/home/mike/Work/nxp-imx8/imx-yocto-bsp/sources/poky/bitbake/lib/bb/cookerdata.py", line 316, in parseBaseConfiguration
    raise bb.BBHandledException
bb.BBHandledException
ERROR: The following required tools (as specified by HOSTTOOLS) appear to be unavailable in PATH, please install them in order to proceed:
  chrpath
  
//解决方案 
sudo apt-get install chrpath
sudo apt-get install texinfo 

DISTRO=<distro name> MACHINE=<machine name> source fsl-setup-release.sh -b <build dir>
// DISTRO
DISTRO= <distro configuration name> is the distro, which configures the build environment and it is stored in meta-fsl-
bsp-release/imx/meta-sdk/conf/distro .

对应源码中的 sources/meta-fsl-bsp-release/imx/meta-sdk/conf/distro/fsl-imx-x11.conf，可以看到 

DISTRO = "fsl-imx-x11"

// MACHINE
MACHINE= <machine configuration name> is the machine name which points to the configuration file in conf/machine in
meta-freescale and meta-fsl-bsp-release.

// 编译输出的目录 
-b <build dir> specifies the name of the build directory created by the fsl-setup-release.sh script.

// MACHINE默认参数为imx6qpsabresd
if [ -z "$MACHINE" ]; then
    echo setting to default machine
    MACHINE='imx6qpsabresd'
fi