4 Known Issues
Read the known issues and limitations when using Oracle CNE Release 2.
Kata Containers on aarch64 Hosts
Kata Containers can only be run using bare metal aarch64 hosts. Nested virtualization is required on virtual hosts to create Kata Containers. Nested virtualization isn't available on aarch64 virtual hosts.
Kata Containers with Custom OCK Images
Kata Containers requires Oracle Linux with the Unbreakable Enterprise Kernel (UEK) as the OS in the OCK image. Any custom OCK images built using another kernel, such as the Red Hat Compatible Kernel (RHCK), don't include UEK, so Kata Containers can't start up. If you build a custom image using OCK Image Builder, ensure you use Oracle Linux with UEK as the OS.
Oracle Linux Virtualization Manager Provider with DHCP
Dynamic Host Configuration Protocol (DHCP) can't be used for the Kubernetes pod network with the Oracle Linux Virtualization Manager provider. Instead, provide a range of IP addresses for VMs to use as Kubernetes nodes, and set an IP address for the built-in Keepalived and NGINX load balancer for control plane nodes (the virtual IP).