:<p>a. '''build.sh''': compile startup script</p>:<p>b. '''external''': Contains the configuration files needed to compile the image, scripts with specific functions, and the source code of some programs. The rootfs compressed package cached during the image compilation process is also stored in external</p>:<p>c. '''kernel''': stores the source code of the Linux kernel, and the folder named orange-pi-5.10-rk35xx stores the kernel source code of the legacy branch of the RK3588/RK3588S/RK3566 series development boards. Please do not manually name the folder name of the kernel source code Modify, if modified, the kernel source code will be re-downloaded when the compilation system is running</p>:<p>d. '''LICENSE''': GPL 2 license file</p>:<p>e. '''README.md''': orangepi-build documentation</p>:<p>f. '''output''': Store compiled deb packages such as u-boot and Linux, compilation logs, and compiled images and other files</p>:<p>g. '''scripts''': general scripts for compiling Linux images</p>:<p>h. '''toolchains''': store cross-compilation toolchain</p>:<p>i. '''u-boot''': stores the source code of u-boot, the folder named '''v2017.09-rk3588''' stores the u-boot source code of the legacy branch of the RK3588/RK3588S/RK3566 series development boards, the name of the folder of the u-boot source code Please do not modify it manually, if it is modified, the u-boot source code will be re-downloaded when the compiling system is running</p>:<p>j. '''userpatches''': Store configuration files needed to compile scripts</p></li>