Table of Contents

• Title and Copyright Information
• Preface
  • Conventions
  • Documentation Accessibility
  • Access to Oracle Support for Accessibility
  • Diversity and Inclusion
• 1 About Oracle Linux 8
  • System Requirements and Limitations
  • Available Architectures
  • Shipped Kernels
  • About the Unbreakable Enterprise Kernel
  • User Space Compatibility
  • Obtaining Installation Images
  • Upgrading From Oracle Linux 7 to Oracle Linux 8
  • Installing Oracle-Supported RDMA Packages
• 2 New Features and Changes
  • Installation
  • --secontext Option of strace Enhanced to Include Mismatch Parameter
  • Software Management
  • Shells and Command-Line Tools
  • Compilers and Development Toolsets
  • GCC Toolset 11.2
  • Availability of the container-tools:4.0 stable stream in Oracle Linux 8.6
  • Database
  • Dynamic Programming Languages, Web, and Database Servers
  • File Systems and Storage
  • High Availability and Clusters
  • Infrastructure Services
  • Networking
  • Security
  • New --estimate-only Option for sosreport update Command
  • Windows Server 2022 Guest Support
  • Technology Preview
    • kexec Fast Reboot
    • SGX Available
    • DAX File System Available
    • NVMe/TCP available
• 3 Known Issues
  • Installation and Upgrade Issues
    • Oracle Linux 8.5 systems with libguestfs-benchmarking and lld-test packages installed cannot be upgraded to Oracle Linux 8.6
    • Messages referring to tmpfiles.d/ files appear during upgrade
    • Installer automatically enables Ethernet over USB network interface during a PXE installation
    • Interactive text-based installation wizard unable to complete when an alternate language is selected
    • Graphical installation program fails to produce error when an unacceptable Kdump value is entered
    • Graphical installation program does not display the reserved memory that is manually set for Kdump
    • Scriptlet-related error for microcode_ctl might be displayed during upgrade
    • rhnreg_ks register command might fail if python3-rhn-virtualization-host package is installed
    • Package conflict between usbguard-1.0.0-2.el8.i686 and usbguard-1.0.0-8.el8.x86_64 on Oracle Linux 8 upgrades
    • Presence of beignet package could result in dependency issue during an upgrade
    • ULN registration wizard not displayed on first boot after an installation
    • Graphics controller requirements for an installation on an Oracle VM VirtualBox guest
    • aarch64 only: Installer displays error: 'Failed to set new efi boot target' on systems with a multipath-enabled NVMe controller"
  • Removing container-selinux package might also remove the selinux-policy-targeted package
  • Running dnf update glusterfs-* command fails to upgrade previously installed packages
  • Updating libss package might fail if libss-devel package is installed
  • Options for configuring disk cache characteristics during VM creation unavailable in web console
  • ACPI error messages displayed on Dell EMC PowerEdge Server during boot
  • Oracle Linux 8 does not recognize SAS controllers on older Oracle Sun hardware
  • File System Issues
    • Btrfs file system not supported on RHCK
    • OCFS2 file system not supported on RHCK
    • ext4: Frequent or repeated system shutdowns can cause file system corruption
  • Kernel Issues
    • KVM guests boot with "amd64_edac_mod: Unknown symbol" errors on AMD 64-bit platforms
    • Output of modinfo command does not show Retpoline support
    • Kdump might fail on some AMD hardware
    • Limitations of the LVM dm-writecache caching method
  • Error: "mcelog service does not support this processor"
  • Power button defaults to ACPI Suspend mode
  • Podman Issues
• 4 Package Changes from the Upstream Release
  • Changes to Binary Packages
    • Added Binary Packages for BaseOS by Oracle
    • Added Binary Packages for AppStream by Oracle
    • Added Binary Packages for CodeReady Linux Builder by Oracle
    • Modified BaseOS Binary Packages
    • Modified Binary Packages for CodeReady Linux Builder by Oracle
    • Modified AppStream Binary Packages
    • Removed BaseOS Binary Packages
    • Removed AppStream Binary Packages
    • Removed CodeReady Linux Builder Binary Packages
  • Changes to Source Packages
    • Added Source Packages for BaseOS by Oracle
    • Added Source Packages for AppStream by Oracle
    • Modified BaseOS Source Packages
    • Modified AppStream Source Packages
    • Modified Source Packages for CodeReady Linux Builder by Oracle
    • Removed BaseOS Source Packages
    • Removed AppStream Source Packages