> ## Documentation Index
> Fetch the complete documentation index at: https://dragonwingdocs-staging.qualcomm.com/llms.txt
> Use this file to discover all available pages before exploring further.

# 构建 Mainline 变体

[Yocto 构建指南](./build-qualcomm-linux)介绍了如何
构建 `meta-qcom` 的稳定且经过验证的版本。Mainline 构建
跟踪 meta-qcom 的最新开发修订版本，面向
需要提前获取新功能、修复或上游更改的开发者。

## 构建说明

* 下载 meta-qcom 的开发分支。

  ```bash theme={null}
  git clone https://github.com/qualcomm-linux/meta-qcom -b master
  ```

- 使用 `kas` 构建软件镜像。您可以根据机器和发行版
  的组合来定义构建目标。

  <CodeGroup>
    ```bash IQ-9075-EVK theme={null}
    kas build meta-qcom/ci/iq-9075-evk.yml:meta-qcom/ci/qcom-distro.yml:meta-qcom/ci/performance.yml
    ```

    ```bash IQ-8275-EVK theme={null}
    kas build meta-qcom/ci/iq-8275-evk.yml:meta-qcom/ci/qcom-distro.yml:meta-qcom/ci/performance.yml
    ```

    ```bash IQ-615-EVK theme={null}
    kas build meta-qcom/ci/iq-615-evk.yml:meta-qcom/ci/qcom-distro.yml:meta-qcom/ci/performance.yml
    ```

    ```bash QCS6490 theme={null}
    kas build meta-qcom/ci/rb3gen2-core-kit.yml:meta-qcom/ci/qcom-distro.yml:meta-qcom/ci/performance.yml
    ```

    ```bash IQ-X7181-EVK theme={null}
    kas build meta-qcom/ci/iq-x7181-evk.yml:meta-qcom/ci/qcom-distro.yml:meta-qcom/ci/performance.yml
    ```

    ```bash IQ-X5121-EVK theme={null}
    kas build meta-qcom/ci/iq-x5121-evk.yml:meta-qcom/ci/qcom-distro.yml:meta-qcom/ci/performance.yml
    ```

    ```bash IQ2390 / CQ2390 theme={null}
    kas build meta-qcom/ci/shikra-evk.yml:meta-qcom/ci/qcom-distro.yml:meta-qcom/ci/performance.yml
    ```
  </CodeGroup>

* 构建会创建一个 tarball，包含执行完整全新烧录所需的所有相关文件，
  包括分区元数据、启动固件、ESP 分区和 rootfs。构建成功后，
  检查构建产物中是否存在 qcomflash tarball。以下示例
  使用 `qcom-multimedia-proprietary-image` 作为镜像名称。

  <CodeGroup>
    ```bash IQ-9075-EVK theme={null}
    ls build/tmp/deploy/images/iq-9075-evk/qcom-multimedia-proprietary-image-iq-9075-evk.rootfs.qcomflash.tar.gz
    ```

    ```bash IQ-8275-EVK theme={null}
    ls build/tmp/deploy/images/iq-8275-evk/qcom-multimedia-proprietary-image-iq-8275-evk.rootfs.qcomflash.tar.gz
    ```

    ```bash IQ-615-EVK theme={null}
    ls build/tmp/deploy/images/iq-615-evk/qcom-multimedia-proprietary-image-iq-615-evk.rootfs.qcomflash.tar.gz
    ```

    ```bash QCS6490 theme={null}
    ls build/tmp/deploy/images/rb3gen2-core-kit/qcom-multimedia-proprietary-image-rb3gen2-core-kit.rootfs.qcomflash.tar.gz
    ```

    ```bash IQ-X7181-EVK theme={null}
    ls build/tmp/deploy/images/iq-x7181-evk/qcom-multimedia-proprietary-image-iq-x7181-evk.rootfs.qcomflash.tar.gz
    ```

    ```bash IQ-X5121-EVK theme={null}
    ls build/tmp/deploy/images/iq-x5121-evk/qcom-multimedia-proprietary-image-iq-x5121-evk.rootfs.qcomflash.tar.gz
    ```

    ```bash IQ2390 / CQ2390 theme={null}
    ls build/tmp/deploy/images/shikra-evk/qcom-multimedia-proprietary-image-shikra-evk.rootfs.qcomflash.tar.gz
    ```
  </CodeGroup>