Oracle Linux 8.5 Iso Official
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.
The DVD ISO contains many packages, but the online repo has more. Enable codeready builder for development tools: oracle linux 8.5 iso
sudo dnf config-manager --set-enabled ol8_codeready_builder
Before you download the ISO, it’s critical to understand why this specific version, Update 5 of the Oracle Linux 8 series, is worth your attention.
Release Date: November 2021 (still under Long-Term Support) Kernel Options: Unbreakable Enterprise Kernel (UEK) Release 6 or Red Hat Compatible Kernel (RHCK) After downloading, always verify the SHA-256 checksum
| Property | Value |
|----------|-------|
| Version | Oracle Linux 8.5 |
| Release Date | November 2021 |
| ISO Filename (Example) | OracleLinux-8.5-x86_64-dvd.iso |
| Size | Approx. 7–9 GB (full DVD image) |
| Architectures | x86_64, aarch64 |
| Package Format | RPM |
| Default Kernel | UEK R6 (5.4.17-2102.201.3.el8uek) |
When you deploy an ISO, you inherit the security posture of that version. Oracle Linux 8.5 introduced fapolicyd (File Access Policy Daemon) by default. This is a kernel-level application whitelisting tool—similar to SELinux but focused on executables. Match the output against the contents of CHECKSUM file
To check if fapolicyd is running:
sudo systemctl status fapolicyd
Additionally, 8.5 includes the OpenSCAP suite by default. You can scan your machine against a DISA STIG or CIS profile:
sudo oscap xccdf eval --profile cis --report scan-report.html /usr/share/xml/scap/ssg/content/ssg-ol8-ds.xml