不删除仓库解决Kas构建Yocto时的多初始化脚本冲突问题

问题背景 #

用Kas 4.5搭建Yocto构建环境，因依赖meta-xilinx层，在Kas配置中添加meta-openembedded仓库后，执行构建命令时触发错误：Multiple init scripts found (meta-openembedded vs. poky). Resolve ambiguity by removing one of the repos，需要在保留两个仓库的前提下解决冲突。

错误构建日志 #

./myimage/tools/myimage_docker.sh kas build
Using /home/spire/air/myimage/docker/docker-compose.yml running kas -l debug build /air/myimage/bitbake/kas.yml 
Creating docker_yocto_run ... done
2024-12-12 16:14:56 - INFO     - kas 4.5 started
2024-12-12 16:14:56 - DEBUG    - Using selector: EpollSelector
2024-12-12 16:14:56 - DEBUG    - /air/myimage/bitbake$ git rev-parse --show-toplevel
2024-12-12 16:14:56 - DEBUG    - /air/myimage/bitbake$ git rev-parse --show-toplevel
2024-12-12 16:14:56 - DEBUG    - execute setup_dir
2024-12-12 16:14:56 - DEBUG    - execute setup_home
2024-12-12 16:14:56 - DEBUG    - execute init_setup_repos
2024-12-12 16:14:56 - DEBUG    - execute repo_setup_loop
2024-12-12 16:14:56 - DEBUG    - Loop repo_setup_loop: execute setup_repos_step
2024-12-12 16:14:56 - DEBUG    - execute finish_setup_repos
2024-12-12 16:14:56 - DEBUG    - /opt/myimage/build-env/poky$ git remote set-url origin https://git.yoctoproject.org/git/poky
2024-12-12 16:14:56 - DEBUG    - /opt/myimage/build-env/meta-openembedded$ git remote set-url origin https://git.openembedded.org/openembedded-core
2024-12-12 16:14:56 - DEBUG    - /opt/myimage/build-env/meta-openembedded$ git cat-file -t scarthgap
2024-12-12 16:14:56 - DEBUG    - /opt/myimage/build-env/poky$ git cat-file -t scarthgap
2024-12-12 16:14:56 - INFO     - Repository meta-openembedded already contains scarthgap as commit
2024-12-12 16:14:56 - INFO     - Repository poky already contains scarthgap as commit
2024-12-12 16:14:56 - DEBUG    - Configuration from config file:
{'distro': 'poky',
 'header': {'version': 17},
 'machine': 'qemu64',
 'repos': {'meta-openembedded': {'commit': 'scarthgap',
                                  'layers': {'meta-networking': None,
                                             'meta-oe': None,
                                             'meta-python': None},
                                  'url': 'https://git.openembedded.org/openembedded-core'},
            'poky': {'commit': 'scarthgap',
                     'layers': {'meta': None, 'meta-poky': None},
                     'url': 'https://git.yoctoproject.org/git/poky'}},
 'target': 'core-image-minimal'}
2024-12-12 16:14:56 - DEBUG    - execute repos_checkout
2024-12-12 16:14:56 - DEBUG    - /opt/myimage/build-env/poky$ git status -s
2024-12-12 16:14:56 - DEBUG    - /opt/myimage/build-env/poky$ git checkout -q scarthgap
2024-12-12 16:14:56 - INFO     - Repository poky checked out to scarthgap
2024-12-12 16:14:56 - DEBUG    - /opt/myimage/build-env/meta-openembedded$ git status -s
2024-12-12 16:14:56 - DEBUG    - /opt/myimage/build-env/meta-openembedded$ git checkout -q scarthgap
2024-12-12 16:14:56 - INFO     - Repository meta-openembedded checked out to scarthgap
2024-12-12 16:14:56 - DEBUG    - execute repos_apply_patches
2024-12-12 16:14:56 - DEBUG    - execute setup_environ
2024-12-12 16:14:56 - ERROR    - Multiple init scripts found (meta-openembedded vs. poky). Resolve ambiguity by removing one of the repos
ERROR: 2

解决方案 #

冲突原因 #

你配置里的meta-openembedded实际指向的是openembedded-core仓库，这个仓库和poky一样包含oe-init-build-env初始化脚本，Kas无法自动选择使用哪一个，因此触发冲突。而真正的meta-openembedded仓库是用来提供附加层（比如meta-oe、meta-networking）的，本身不带核心初始化脚本。

具体修正步骤 #

1. 修改Kas配置中的仓库URL
   将meta-openembedded仓库的URL替换为真正的meta-openembedded仓库地址：https://git.openembedded.org/meta-openembedded，该仓库包含你需要的meta-oe、meta-networking、meta-python等层，且不会与poky的初始化脚本冲突。

2. 修改后的Kas配置示例

   repos:
     poky:
       url: https://git.yoctoproject.org/git/poky
       commit: scarthgap
       layers:
         meta:
         meta-poky:
     meta-openembedded:
       url: https://git.openembedded.org/meta-openembedded
       commit: scarthgap
       layers:
         meta-oe:
         meta-networking:
         meta-python:
   

3. 重新执行构建
   修改配置后，重新运行kas build命令，Kas会拉取正确的仓库，此时只有poky提供初始化脚本，冲突即可解决。

内容的提问来源于stack exchange，提问作者Werner Thomassen Andrade