Anthos clusters on bare metal runs on Linux. Anthos clusters on bare metal version 1.9.0 and subsequent patch releases support the following Linux distributions and versions. Anthos clusters on bare metal works with the kernels supplied with supported distributions.
| CentOS | Red Hat Enterprise Linux (RHEL) | Ubuntu |
|---|---|---|
| 8.1 | 8.1 | 18.04* |
| 8.2 | 8.2 | 20.04 |
| 8.3 | 8.3 | |
| 8.4 | 8.4 |
* For information about a compatibility issue with Ubuntu 18.04, see Ubuntu 18.04 and 18.04.1 incompatibility in Known Issues.
Supported operating systems must also have Linux kernels with the option CONFIG_BPF_JIT=y. To find out whether this option is enabled, run grep CONFIG_BPF_JIT /boot/config-$(uname -r).
For instructions to configure the operating system on your node machines, see the following: