8.1.1 About Upgrading to Oracle Linux 8 on Exadata Servers
When you upgrade to Oracle Exadata System Software release 23.1.0, the Oracle Linux version is upgraded to Oracle Linux 8 with Unbreakable Enterprise Kernel (UEK) 6.
Unbreakable Enterprise Kernel (UEK) 6 is required to support the AMD processor architecture introduced in Oracle Exadata X10M models.
Parent topic: About Updating Exadata Software