CentOS Linux 7 will reach EOL on Sunday

Original Article ↗ Hacker News Discussion ↗

CentOS 7 EOL and CentOS Stream Lifecycle

  • CentOS Linux 7 support ends imminently; some users treated it as effectively dead earlier due to repo/update issues.
  • CentOS Stream 8 is already EOL; CentOS Stream generally has ~5‑year lifecycles tied to the “full support” phase of the matching RHEL release.
  • Some users who picked Stream to avoid the CentOS 8 early EOL were surprised to learn Stream 8 is already out of support.

Migration Paths and Tools

  • Suggested technical paths: LEAPP (RHEL/CentOS Stream 7→8/9), convert2rhel (CentOS→RHEL), AlmaLinux ELevate (CentOS 7→Alma 8/9 via intermediate steps).
  • Reports are mixed: some say upgrades are smooth; others call convert2rhel/LEAPP “a nightmare,” with repeated failures and broken PHP, Python, mail, and DB setups.
  • Workarounds include rebuilding from scratch, using containers (run EL7 userspace on newer hosts), or temporarily relying on extended support services.

Replacement Distros & Ecosystem Fragmentation

  • Common replacements: AlmaLinux, Rocky Linux, RHEL proper (including the “free for up to 16 systems” program), Oracle Linux, Debian, Ubuntu Server.
  • Alma/Rocky generally reviewed positively; Alma tracks CentOS Stream, Rocky aims for bug‑for‑bug RHEL compatibility.
  • Some move entirely to Debian/Ubuntu, often citing simpler upgrades, lack of corporate “shenanigans,” or dislike of Ubuntu’s CLI/log “ads” and snaps.
  • SUSE’s Liberty Linux Lite is noted as a commercial lifeline for CentOS 7 via repo swap, but its minimum spend is seen as high.

Enterprise Support, Compliance, and Trust

  • For FedRAMP/FIPS and similar regimes, CentOS (especially Stream) is problematic; RHEL 8/9 and specific minor streams (e.g., 8.6, 9.2) are actively kept compliant.
  • Debate over relying on free rebuilds vs. vendor promises: some distrust IBM/Red Hat’s policy changes; others distrust Oracle more, despite Oracle Linux’s long, consistent availability and fast security updates.
  • Extended support options mentioned: CIQ, OpenLogic, TuxCare, Red Hat’s own RHEL7 offerings, and Debian ELTS via Freexian.

Upgrade Pain and Technical Issues

  • Large CentOS 7 estates (HPC clusters, scientific environments, on‑prem VMs, VPS fleets) report major effort and risk, especially with highly customized “pet” systems.
  • Specific issues: secure boot with CentOS Stream 9, network interface naming bugs in leapp‑upgrade, missing OpenSSL 1.1 headers on RHEL 9, floating‑point differences between CentOS 7 vs. Rocky 8 setups.
  • Some argue major version bumps are inherently disruptive; others note that decade‑long ABI/API stability in enterprise distros makes big, infrequent jumps unavoidable.