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CentOS Base repository

The CentOS Base repository refers to the primary software package repository configuration file used by the yum package manager in CentOS.^[600-developer-docker-yum-aliyun.md] The default configuration file is located at /etc/yum.repos.d/CentOS-Base.repo.^[600-developer-docker-yum-aliyun.md]

Management

When modifying the system's package sources, it is standard practice to create a backup of the original repository file.^[600-developer-docker-yum-aliyun.md] This is typically done by renaming the default file to CentOS-Base.repo.backup using the mv command before applying any changes.^[600-developer-docker-yum-aliyun.md]

Configuration

The repository configuration determines where the system fetches software updates and installations from. For users in China or regions closer to Aliyun infrastructure, the official CentOS-Base.repo is often replaced with a version sourced from Aliyun mirrors to improve download speeds.^[600-developer-docker-yum-aliyun.md] This involves downloading a specific repository file (e.g., Centos-7.repo) directly to the /etc/yum.repos.d/ directory.^[600-developer-docker-yum-aliyun.md]

After updating the repository file, the system cache must be regenerated to ensure the package manager recognizes the new metadata.^[600-developer-docker-yum-aliyun.md]

  • [[Yum]]
  • [[Mirrors]]
  • [[Linux package management]]

Sources

^[600-developer-docker-yum-aliyun.md]