Simply attach the ISO as a virtual optical drive in your VM settings.
Before diving into the ISO download, it’s crucial to understand what makes version 8.5 unique.
Even with a valid Oracle Linux 8.5 ISO, you might encounter hiccups.
Oracle Linux 8.5 is a Linux distribution developed by Oracle Corporation. It is based on the Red Hat Enterprise Linux (RHEL) 8.5 distribution and offers a stable and secure platform for running enterprise workloads. Oracle Linux 8.5 provides a range of features, including:
In this article, we have provided a step-by-step guide on how to download and install Oracle Linux 8.5. Oracle Linux 8.5 offers a robust and secure platform for running enterprise workloads. By following these steps, you can easily install Oracle Linux 8.5 on your server and take advantage of its features.
Oracle Linux 8.5 serves as a bridge for enterprise users seeking a reliable, RHEL-compatible environment without the subscription overhead of Red Hat. Released as a significant update in the 8.x series, it focuses on refining its unique "Unbreakable Enterprise Kernel" (UEK) while maintaining strict application binary compatibility with Red Hat Enterprise Linux 8.5. The Core Offering: A Tale of Two Kernels
The most defining feature of the Oracle Linux 8.5 ISO is the choice it gives you at boot:
Unbreakable Enterprise Kernel (UEK R6): Oracle’s "secret sauce." This is the default for new installs and is optimized for Oracle hardware and software, featuring modern advancements like DTrace and Zero-Downtime Patching.
Red Hat Compatible Kernel (RHCK): For those who need 100% bug-for-bug compatibility with Red Hat, this kernel ensures that specialized third-party software runs exactly as intended. Key Highlights for Users
Application Streams: Like RHEL 8, it uses "AppStreams" to decouple the core OS from developer tools. This allows you to run multiple versions of languages like Python or databases like MySQL on the same base OS. oracle linux 8.5 iso
Zero-Downtime Patching: A standout feature for server admins; you can apply critical security fixes to the kernel without rebooting the system, a massive win for high-availability environments.
Free for Production: Unlike RHEL, which requires a subscription for production updates, Oracle Linux is free to download, use, and redistribute in production. You only pay if you want Oracle's 24/7 enterprise support. The Installation Experience
The ISO provides a familiar Anaconda installer. While the interface is enterprise-standard and straightforward, some users noted minor hurdles like unclear default root passwords during certain automated installs. A Look at Oracle Linux version 8.3
Oracle Linux 8 Update 5 (8.5) is a versatile operating environment designed for modern data centers and cloud infrastructures. Based on Red Hat Enterprise Linux (RHEL) 8.5, it is 100% application-binary compatible while offering unique performance and security enhancements through the Unbreakable Enterprise Kernel (UEK)
Below is a complete breakdown of the key features and capabilities of the Oracle Linux 8.5 ISO. Core Kernel & Performance
Oracle Linux 8.5 offers two kernel choices to balance stability and bleeding-edge performance: Unbreakable Enterprise Kernel (UEK) Release 6
: The default kernel (5.4-based) optimized for Oracle hardware and software. It includes enhancements for NVMe, file systems like Btrfs, and security. Red Hat Compatible Kernel (RHCK)
: Provides identical behavior to the RHEL kernel for users requiring strict upstream parity. eBPF Support
: Full support for Extended Berkeley Packet Filter (eBPF), allowing for high-performance system tracing, networking, and security monitoring without modifying the kernel. Security & Compliance Kernel Lockdown Simply attach the ISO as a virtual optical
: Prevents unauthorized modifications to the running kernel image, even by the root user, reducing the attack surface. OpenSCAP Enhancements
: Updated security profiles and scanning tools to ensure the system meets industry standards like PCI-DSS and STIG. System-Wide Crypto Policies
: Centrally manage cryptographic algorithms across all applications (e.g., SSH, TLS, IPsec) with a single command. NSS Support for TLS 1.3
: Improved security for web communications and internal services. Developer & Application Tools Oracle Linux 8.5 uses the Application Streams (AppStream)
model, allowing different versions of software to run on the same OS: Updated Languages
: Includes the latest versions of Java (OpenJDK 17), Python 3.9, PHP 7.4, and Ruby 3.0. Database Support
: Optimized out-of-the-box for Oracle Database installations with the oracle-database-preinstall-8c GCC Toolset 11
: Provides the latest compiler features for C and C++ developers. Management & Automation Cockpit Web Interface
: A powerful, browser-based dashboard for managing servers, monitoring performance, and configuring storage or networking. Ansible Integration The installation will proceed in command-line mode
: Native support for automation playbooks to streamline large-scale deployments. Dnf (YUM v4)
: A faster, more efficient package manager with improved dependency resolution. Virtualization & Containers Podman, Buildah, and Skopeo
: A daemon-less container engine suite that replaces Docker, allowing for more secure, rootless container management. KVM Support
: Updated virtualization features for hosting high-performance virtual machines. Availability & Support Zero-Downtime Patching : Available via Oracle Ksplice
, which allows you to apply critical kernel and user-space patches without rebooting the system (requires a support subscription). Free to Download : The ISO is free to download, use, and distribute via the Oracle Software Delivery Cloud Oracle Linux yum server If you're planning an installation, I can help you with: hardware requirements installation steps using the Anaconda installer switch from RHEL or CentOS to Oracle Linux 8.5 seamlessly
inst.text console=tty0 console=ttyS0,115200
The installation will proceed in command-line mode. After reboot, install VMware tools or VirtIO drivers.
After downloading, always verify the SHA-256 checksum. Oracle publishes these on the yum server alongside the ISO. For example:
sha256sum OracleLinux-8.5-x86_64-dvd1.iso
Match the output against the contents of CHECKSUM file.
