2、解压sdk包：
root@ubuntu:/opt# tar -xvf sdk.tar.bz2
sdk/
sdk/poky-glibc-x86_64-myir-image-full-aarch64-myir-remi-1g-toolchain-3.1.20.sh
复制代码3、安装sdk
root@ubuntu:/opt/sdk# ./poky-glibc-x86_64-myir-image-full-aarch64-myir-remi-1g-toolchain-3.1.20.sh
Poky (Yocto Project Reference Distro) SDK installer version 3.1.20
==================================================================
Enter target directory for SDK (default: /opt/poky/3.1.20):
You are about to install the SDK to "/opt/poky/3.1.20". Proceed [Y/n]? y
Extracting SDK...................................................................................................................................................................................................................................................................................................................................................................................................................................................................done
Setting it up...done
SDK has been successfully set up and is ready to be used.
Each time you wish to use the SDK in a new shell session, you need to source the environment setup script e.g.
$ . /opt/poky/3.1.20/environment-setup-aarch64-poky-linux
$ . /opt/poky/3.1.20/environment-setup-armv7vet2hf-neon-vfpv4-pokymllib32-linux-gnueabi
root@ubuntu:/opt/sdk# source /opt/poky/3.1.20/environment-setup-a
environment-setup-aarch64-poky-linux
environment-setup-armv7vet2hf-neon-vfpv4-pokymllib32-linux-gnueabi
root@ubuntu:/opt/sdk# source /opt/poky/3.1.20/environment-setup-a
environment-setup-aarch64-poky-linux
environment-setup-armv7vet2hf-neon-vfpv4-pokymllib32-linux-gnueabi
root@ubuntu:/opt/sdk# source /opt/poky/3.1.20/environment-setup-a
environment-setup-aarch64-poky-linux
environment-setup-armv7vet2hf-neon-vfpv4-pokymllib32-linux-gnueabi
root@ubuntu:/opt/sdk# source /opt/poky/3.1.20/environment-setup-a
environment-setup-aarch64-poky-linux
environment-setup-armv7vet2hf-neon-vfpv4-pokymllib32-linux-gnueabi
root@ubuntu:/opt/sdk# source /opt/poky/3.1.20/environment-setup-a
environment-setup-aarch64-poky-linux
environment-setup-armv7vet2hf-neon-vfpv4-pokymllib32-linux-gnueabi
root@ubuntu:/opt/sdk# source /opt/poky/3.1.20/environment-setup-a
environment-setup-aarch64-poky-linux
environment-setup-armv7vet2hf-neon-vfpv4-pokymllib32-linux-gnueabi
root@ubuntu:/opt/sdk# source /opt/poky/3.1.20/environment-setup-a
environment-setup-aarch64-poky-linux
environment-setup-armv7vet2hf-neon-vfpv4-pokymllib32-linux-gnueabi
root@ubuntu:/opt/sdk# source /opt/poky/3.1.20/environment-setup-a
environment-setup-aarch64-poky-linux
environment-setup-armv7vet2hf-neon-vfpv4-pokymllib32-linux-gnueabi
root@ubuntu:/opt/sdk# source /opt/poky/3.1.20/environment-setup-a
environment-setup-aarch64-poky-linux
environment-setup-armv7vet2hf-neon-vfpv4-pokymllib32-linux-gnueabi
root@ubuntu:/opt/sdk# source /opt/poky/3.1.20/environment-setup-a
environment-setup-aarch64-poky-linux
environment-setup-armv7vet2hf-neon-vfpv4-pokymllib32-linux-gnueabi
root@ubuntu:/opt/sdk# source /opt/poky/3.1.20/environment-setup-a
environment-setup-aarch64-poky-linux
environment-setup-armv7vet2hf-neon-vfpv4-pokymllib32-linux-gnueabi
复制代码root@ubuntu:/opt/sdk# source /opt/poky/3.1.20/environment-setup-armv7vet2hf-neon-vfpv4-pokymllib32-linux-gnueabi
复制代码5、检验sdk是否正确安装
root@ubuntu:/opt/sdk# $CC -v
复制代码
6、创建文件，并验证：
说明编译是成功的。上传到开发板，执行也是对的：
到此安装sdk成功，可以实现用c来交叉编译运行程序了。
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