开源鸿蒙OpenHarmony4.1源码下载、编译，生成OHOS_Image可执行文件的最简易流程
| 作者 | 将狼才鲸 |
|---|---|
| 日期 | 2024-03-01 |
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准备一台Windows电脑
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安装VMware或者VMware Player虚拟机
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从华为镜像下载Ubuntu系统，用国内源下载速度更快
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下载开源鸿蒙系统源码
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在VMware虚拟机中安装Ubuntu系统
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安装完之后进入系统，使用命令行将官方源换成华为源，这样下载软件时更快
- 参考自：https://res-static.hc-cdn.cn/cloudbu-site/china/zh-cn/SEO/mirror/Ubuntu.pdf
- sudo cp -a /etc/apt/sources.list /etc/apt/sources.list.bak 备份配置文件
- sudo sed -i "s@http://.\*archive.ubuntu.com@http://repo.huaweicloud.com@g" /etc/apt/sources.list
- sudo sed -i "s@http://.\*security.ubuntu.com@http://repo.huaweicloud.com@g" /etc/apt/sources.list
- sudo apt-get update
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在Ubuntu系统中解压上面已经下载的openHarmony源码
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在Ubuntu系统中安装Docker
- 官方文档介绍-Docker编译环境
- sudo apt install docker.io
- sudo docker pull swr.cn-south-1.myhuaweicloud.com/openharmony-docker/docker_oh_mini:3.2 获取轻量系统镜像，获取小型和标准的则使用不同的参数
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将你下载好的鸿蒙源码在Ubuntu下解压，进入已经解压的源码根目录
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执行 sudo docker run -it -v $(pwd):/home/openharmony swr.cn-south-1.myhuaweicloud.com/openharmony-docker/docker_oh_mini:3.2 将源码路径导入到Docker中
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编译
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编译成功后是这样的打印：
shell
[OHOS INFO] [1614/1615] STAMP obj/build/ohos/images/make_images.stamp
[OHOS INFO] [1615/1615] STAMP obj/build/core/gn/images.stamp
[OHOS INFO] ccache_dir = /root/.ccache, ccache_exec = /usr/bin/ccache
[OHOS INFO] --------------------------------------------
[OHOS INFO] ccache summary:
[OHOS INFO] ccache version: 3.7.7
[OHOS INFO] cache hit (direct): 0
[OHOS INFO] cache hit (preprocessed): 0
[OHOS INFO] cache miss: 0
[OHOS INFO] hit rate: 0.00%
[OHOS INFO] miss rate: 0.00%
[OHOS INFO] Cache size (GB):
[OHOS INFO] ---------------------------------------------
[OHOS INFO] c targets overlap rate statistics
[OHOS INFO] subsystem files NO. percentage builds NO. percentage overlap rate
[OHOS INFO] hiviewdfx 12 0.8% 12 0.8% 1.00
[OHOS INFO] kernel 902 63.5% 902 63.5% 1.00
[OHOS INFO] security 61 4.3% 61 4.3% 1.00
[OHOS INFO] startup 26 1.8% 26 1.8% 1.00
[OHOS INFO] systemabilitymgr 15 1.1% 15 1.1% 1.00
[OHOS INFO] thirdparty 393 27.7% 393 27.7% 1.00
[OHOS INFO]
[OHOS INFO] c overall build overlap rate: 1.00
[OHOS INFO]
[OHOS INFO]
[OHOS INFO] qemu_mini_system_demo@ohemu build success
[OHOS INFO] Cost time: 0:05:47
root@ff38bf1e3e75:/home/openharmony#
jim@ubuntu:~/openHarmony/out/arm_mps2_an386/qemu_mini_system_demo$ ls
all_parts_host.json build_configs config.h kconfig_files.txt OHOS_Image.bin src_installed_parts.json
all_parts_info.json build.log error.log libs OHOS_Image.map src_sa_infos_tmp.json
args.gn build.ninja etc NOTICE_FILES OHOS_Image.sym.sorted startup
binary_installed_parts.json build.ninja.d gen obj packages thirdparty
build.1709259296.3884952.log build.trace.gz hiviewdfx OHOS_Image security toolchain.ninja
build.1709259767.6772568.log config.gni kconfig_env.txt OHOS_Image.asm sorted_action_duration.txt
jim@ubuntu:~/openHarmony/out/arm_mps2_an386/qemu_mini_system_demo$ -
生成的系统镜像image是这里面的OHOS_Image文件
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如需退出Docker，执行exit命令即可。这个命令会停止当前的Docker容器，并返回到您的操作系统。
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下一步就可以把编译好的操作系统在QEMU模拟器中运行起来了。