For years, CentOS Linux has been a cornerstone in the world of open-source operating systems. But as the tech landscape evolves, so too must our beloved distributions. Let’s unpack the CentOS saga and explore what the future holds for Linux enthusiasts and Hong Kong server users alike.

What Is CentOS Linux?

CentOS was more than just another distribution; it was a freely available, community-supported powerhouse derived from Red Hat Enterprise Linux (RHEL) sources. This Project, a dedicated community of contributors, developed, distributed, and maintained this robust system. While it aligned with RHEL’s release cycle, it’s crucial to note that this platform was not a Red Hat product and didn’t come with their support.

Is CentOS 7 still getting updates?

No, as of August 2024, if you’re still running CentOS 7, you’re living on borrowed time. The final curtain call for CentOS 7 was June 30, 2024 – its official End of Life (EOL) date. After this point, no more updates, security patches, or support are available from the official channels.

In a move that sent shockwaves through the community, this Project, in cahoots with Red Hat, dropped a bombshell in 2020. They announced a paradigm shift: full investment would now go to CentOS Stream, the upstream development platform for future RHEL releases. This decision effectively put it on the path to extinction, with updates and releases gradually phasing out between 2021 and 2024.

What does EOL Means for You?

EOL, or End of Life, is the tech world’s way of saying, “It’s time to move on.” When a product reaches EOL, it’s discontinued. For users, this means no more updates, security patches, or official support. It’s the software equivalent of a car manufacturer stopping production of spare parts for a particular model.

If you’re still clinging to CentOS 7, it’s time for a change. Running an EOL operating system is like leaving your digital front door wide open. Without ongoing security updates and patches, you’re exposing your systems to potential vulnerabilities and breaches. While some third-party support might still be available, it would be a fork in the road, completely separate from the CentOS Project, CentOS Stream, or Red Hat.

Is there a CentOS 9? We hate to break it to you – it’s not happening. Instead, we have CentOS Stream 9, a continuous delivery distribution that serves as the developmental foundation for RHEL 9. It’s a different beast altogether, designed for those who want to live on the bleeding edge of RHEL development.

The CentOS-Red Hat Tango: A Complex Partnership

The relationship between them has always been a fascinating dance. CentOS Linux essentially acted as a free clone of RHEL, using its source code but stripping away trademarks and proprietary elements. Now, with CentOS Stream, the dynamic has shifted. It’s become the upstream version in RHEL’s development process, providing continuous feedback and improvements.

Charting Your Course: Migration Options for Users

With CentOS riding off into the sunset, what’s a sysadmin to do? Fear not, fellow geeks! There are several paths forward:

  1. Embrace CentOS Stream: If you’re feeling adventurous, it offers a rolling-release model that’s always up-to-date.
  2. Switch to RHEL: For those who need enterprise-grade support, migrating to Red Hat Enterprise Linux might be the best option.
  3. Explore RHEL-compatible alternatives: Distributions like Rocky Linux or AlmaLinux aim to fill the void left behind.
  4. Consider other flavors: Debian, Ubuntu, or SUSE might suit your needs if you’re open to a different ecosystem.

Exploring General Linux Distributions

When considering alternatives, the world of Linux distributions offers a rich variety of options. Popular choices include Debian, known for its stability, and Ubuntu, which provides a user-friendly experience. For those interested in cutting-edge features, Fedora is an excellent choice, as it integrates the latest innovations from the open-source community. Each distribution has its unique package management system; for instance, Debian uses APT, while Fedora utilizes DNF. To install a package on Debian, you can run:


sudo apt update
sudo apt install package-name

Conversely, on Fedora, use:


sudo dnf install package-name

By exploring these options, users can find a distribution that best fits their needs, whether for personal projects or enterprise environments.

The Migration Process: A Step-by-Step Guide

Migrating from CentOS to another distribution can seem daunting, but with a systematic approach, it’s totally manageable. Here’s a high-level overview of the process:


1. Assess your current system:
   $ uname -a
   $ cat /etc/centos-release

2. Back up your data:
   $ sudo rsync -avz /path/to/important/data /backup/location

3. Choose your new distribution (e.g., Rocky Linux)

4. Download and verify the ISO for your new distribution

5. Create a bootable USB or use PXE boot for installation

6. Install the new OS, preserving /home if possible

7. Reinstall necessary packages:
   $ sudo dnf install package1 package2 package3

8. Restore your data and configurations

9. Test thoroughly before going live

Remember, each migration is unique. Always consult the official documentation of your chosen distribution for the most up-to-date and specific instructions.

Embracing Change: The Future of Enterprise Linux

The end of CentOS Linux marks a significant shift in the enterprise landscape. While it’s natural to feel a twinge of nostalgia, it’s also an opportunity to reassess our infrastructure needs and explore new possibilities. Whether you choose to ride CentOS Stream, jump ship to RHEL, or explore other flavors, the open-source community continues to thrive and innovate.

As we bid farewell to this distribution, let’s remember the invaluable role it played in democratizing enterprise-grade Linux. Its spirit lives on in the numerous forks and alternatives that have emerged. The future of Linux is as bright as ever, with CentOS Stream and other distributions pushing the boundaries of what’s possible in the world of open-source operating systems.