Updating AlmaLinux 9 to Its Most Recent Iteration: A Step-by-Step Guide
AlmaLinux 9, an enterprise-grade Linux distribution, is popular among businesses, system administrators, and developers. This article provides a guide on maintaining AlmaLinux 9, focusing on updating the system, managing kernels, and ensuring a smooth upgrade process.
To begin, updating the system is essential for security, stability, and performance. You can update AlmaLinux 9 by running the command . After the updates, it's advisable to reboot the system to load the latest kernel and configurations with the command .
If a partition is full, old kernels can be cleaned up using the command . This will not remove the kernels but will show a list of packages that can be safely removed.
For security updates only, you can use the command . In case you want to see the currently installed kernels, run or .
Manually upgrading the kernel in AlmaLinux 9 can be done with the command . However, it's crucial to reboot your system for the new kernel to take effect with the command .
AlmaLinux inherits its legacy from CentOS and uses the dnf package manager for updates and system management. Monitoring update logs can provide valuable insights into the update process. You can view the logs using .
Best practices for updating AlmaLinux 9 include always backing up important data before updating, performing updates as a non-root user with sudo privileges to maintain security, rebooting the system after updates, ensuring SELinux is enabled and enforcing for security, and using commands for consistency and reliability.
When migrating from AlmaLinux 9 to AlmaLinux 10, Red Hat-supported tools like ELevate and Leapp are recommended. These tools facilitate a safe upgrade without reinstall. Make sure the migration path is supported, test the update process in staging environments first, check for software compatibility, especially third-party packages, and monitor the system after updates for any issues.
In summary, use to keep your AlmaLinux 9 system up to date, reboot to apply changes, and use Red Hat-supported tools (ELevate and Leapp) to perform major version upgrades safely. Always back up data and verify system health after updates.
For more advanced configurations, such as setting up a WebDAV folder, please refer to separate guides. To check disk usage, run the command .
To maintain stability and performance, update the AlmaLinux 9 system by running the command . After updating, reboot the system to load the latest kernel and configurations using the command .
For security, you can install security updates only by running the command . To check the currently installed kernels, use or .
When working with hardware, it's crucial to ensure network and internet security. Use technology and software tools like firewalls, antivirus, and encryption to protect sensitive data from potential threats.
