AlmaLinux 9

Scientific Linux 7 (SL7) will reach its end-of-life on June 30, 2024, and will no longer receive updates after that date.
CLASSE-IT recommends and is supporting AlmaLinux 9, a rebuild of RedHat Enterprise Linux 9 (EL9), as a successor to Scientific Linux 7.


Where possible, CLASSE-IT will begin installing AlmaLinux 9 on new deployments. A focused effort to upgrade existing SL7 servers and workstations will begin during the 2024 summer down.


lnx209.classe.cornell.edu is a CLASSE AlmaLinux 9 deployment ready for use. Please consider switching from lnx201 (SL7) to lnx209 as a general-purpose login node.

If you would like your CLASSE managed computers upgraded to AlmaLinux 9, please submit a ServiceRequest. If you manage your own linux computer, we highly recommend upgrading to AlmaLinux 9.

Please note that software built on AlmaLinux 9 may not run on SL7, while in most cases code built on SL7 will (or can) run on AlmaLinux 9. When working on a CLASSE AlmaLinux 9 computer, such as lnx209.classe.cornell.edu, please submit a ServiceRequest if you find any missing software or are unable to run any existing software.

Additional Information

The Zoom desktop client stopped working for Scientific Linux 7 starting Nov. 4, 2023. Zoom on a web browser continues to work after this date.

For more information about Fermilab and CERN’s recommendation for Linux distributions, see https://listserv.fnal.gov/scripts/wa.exe?A2=ind2212&L=SCIENTIFIC-LINUX-USERS&P=78
Topic revision: r2 - 01 Apr 2024, WernerSun
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