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CERN transitioning industrial computers to Debian after being a longtime RHEL institution
TL;DR
CERN is transitioning over 2,200 industrial computers from CentOS to Debian due to compatibility issues with older hardware. This shift marks a significant change after a decade of using CentOS.
✦ Why It Matters
Evaluate your current OS choices and consider the implications of hardware compatibility on your systems.
Key Takeaways
- Assess the impact of compiler flags on your hardware compatibility.
- Explore Debian's capabilities for your industrial systems.
- Stay informed about CERN's migration progress for insights.
- Consider the need for standardized tooling in your projects.
Full Summary
CERN has announced a significant shift in its operating system strategy, moving from CentOS to Debian for its industrial accelerator-control computers. Previously, CERN utilized Scientific Linux, a Red Hat Enterprise Linux (RHEL) derivative, for about a decade before switching to CentOS in 2015.
The decision to abandon CentOS was primarily driven by the '-march=x86-64-v2' compiler flag, which they viewed as forcing obsolescence on older hardware. While considering CentOS Stream as a potential alternative, CERN ultimately opted for Debian due to its broader compatibility.
However, the transition has not been without challenges, particularly the lack of standardized tools for automated package building and publishing. By the end of 2026, CERN plans to have all 2,200+ industrial computers and embedded systems operational on Debian 13, while maintaining RHEL/AlmaLinux for data centers and experimental computing.