Unbreakable Enterprise Kernel

UEK Documentation

The Unbreakable Enterprise Kernel (UEK) is a Linux kernel built by Oracle and supported via Oracle Linux support. Its focus is performance, stability, and minimal backports by tracking the mainline source code as closely as is practical. UEK is well-tested and used to run Oracle's Engineered Systems, Oracle Cloud Infrastructure, and large enterprise deployments for Oracle customers.

Note that UEK R2 is not supported or available for Oracle Linux 7.

Note that UEK R5 is not supported or available for Oracle Linux 6.

UEK R6 is only available for Oracle Linux 7 and Oracle Linux 8.