Orange Pi Zero2 - Linux SDK Instructions; Get the Source Code of Linux SDK

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00080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |f0
00090: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |f0
000a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |f0
000b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |f0
000c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |f0
000d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |f0
000e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |f0
000f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |f0
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c1 c4 c7 ca 71 73 75 77 79 7b 84 86 88 8a 8c 8e |10
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4. Linux SDK instructions
The compilation of the Linux SDK is done on a PC with Ubuntu 18.04 installed.
Other versions of Ubuntu OS may have some differences
4.1. Get the source code of Linux SDK
1) First download the code of orangepi-build, the code of orangepi-build is modified
based on the armbian build OS
a. Currently the Orange Pi Zero 2 development board only supports the legacy
branch
b. The kernel version is linux4.9
c. u-boot version is v2018.05
test@test:~$ sudo apt update
test@test:~$ sudo apt install git
test@test:~$ git clone https://github.com/orangepi-xunlong/orangepi-build.git
2) Orangepi-build will contain the following files and folders after downloading
a. build.sh: Compile the startup script
b. external: Contains the configuration files needed to compile the image,
specific scripts, and the source code of some programs, etc.
c. LICENSE: GPL 2 license file
d. README.md: orangepi-build instruction file
e. scripts: general scripts for compiling linux images
test@test:~/orangepi-build$ ls
build.sh external LICENSE README.md scripts
3) The orangepi-build repository does not contain the source code of the Linux kernel
and u-boot after the first download. They are stored in a separate git repository