CERN's migration path from CentOS Linux to Debian
Summary
CERN plans to migrate from CentOS Linux to Debian to better support long-term hardware and software stability for its accelerator controls. The article explains the rationale, the three-layer infrastructure affected, and the tooling and planning required to execute the migration, including ELBE, Koji integration, and GitLab package registries. It provides practical takeaways on OS strategy and long-term upgrade planning for critical, large-scale IT environments.