💻CERN Moves 2,200 Systems to Debian by 2026
CERN's Linux Shift: From RHEL to Debian
TL;DR
CERN is transitioning over 2,200 industrial computers and embedded systems to Debian 13 by the end of 2026. The shift underscores the evolving landscape of Linux distributions in scientific research.
CERN is transitioning over 2,200 industrial computers and embedded systems to Debian 13 by the end of 2026. This move marks a significant shift from the Red Hat Enterprise Linux (RHEL) ecosystem, which has been the backbone of CERN's IT infrastructure for years. The decision reflects the changing dynamics of Linux distributions and the need for stability and compatibility in scientific research environments. CERN's move is particularly noteworthy given the complex hardware and software requirements of its accelerator controls, where legacy systems and specialized hardware pose unique challenges. By 2026, CERN aims to have 2,200 systems running Debian, signaling a broader trend in the scientific community towards more open and flexible Linux distributions.
Key Points
CERN plans to run Debian 13 on over 2,200 systems by the end of 2026.
AlmaLinux and RHEL remain main supported distributions across much of CERN.
CERN and Fermilab gradually abandoned Scientific Linux, a custom RHEL rebuild.
CentOS Stream replaced Scientific Linux as the default RHEL rebuild option.
Red Hat's changes to RHEL-related source distribution impacted CERN's strategy.
Why It Matters
If you're managing legacy systems at CERN, the shift to Debian 13 by 2026 means you'll need to adapt to new stability and compatibility requirements. This move affects the broader scientific community, highlighting the importance of open and flexible Linux distributions in complex research environments.
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