# Linux kernel version

Version 4.0 or higher of the Linux kernel is required. For RHEL, use version 3.10.0-514 of the kernel or a higher version.

**Note:** The `overlay` and `overlay2` drivers are supported on XFS backing file systems with the **d\_type=true** option enabled.

* To ensure that the **ftype** option is set to 1, use the command **xfs\_info** and verify the output. To format an XFS file system correctly, use the flag **-n ftype=1**.
* If the dedicated server is restarted, make sure to enable auto start-up for Docker by executing the following commands:
  * `sudo systemctl enable docker.service`
  * `sudo systemctl enable containerd.service`


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