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  • Intro
  • Kernel Version
  • Linux Distributions
  • Permissions
  • CO:RE support
  • What happens if my kernel is not supported?
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  1. Getting Started
  2. Requirements

Kernel requirements for eBPF sensor

Last updated 9 months ago

Intro

groundcover’s eBPF sensor uses state-of-the-art kernel features to provide full coverage at low overhead. In order to do so it requires certain kernel features which are listed below.

groundcover may work on many other linux kernels, but we might just didn't get a chance to test it yet. Can't find yours in the list?

Kernel Version

Version v5.3 or higher (anything since 2020).

Linux Distributions

Name
Supported Versions

Debian

11+

RedHat Enterprise Linux

8.2+

Ubuntu

20.10+

CentOS

7.3+

Fedora

31+

BottlerocketOS

1.10+

Amazon Linux

All off the shelf AMIs

Google COS

All off the shelf AMIs

Azure Linux

All off the shelf AMIs

Talos

1.7.3+

Permissions

CO:RE support

You can check if your kernel has CO:RE support by manually looking for the BTF file:

$ ls -la /sys/kernel/btf/vmlinux

- r--r--r--. 1 root root 3541561 Jun 2 18:16 /sys/kernel/btf/vmlinux

If the file exists, congratulations! Your kernel supported CO:RE.

What happens if my kernel is not supported?

Loading eBPF code requires running privileged containers. While this might seem unusual, there's nothing to worry about - eBPF is

Our sensor uses eBPF’s feature in order to support the vast variety of linux kernels and distributions detailed above. This feature requires the kernel to be compiled with BTF information (enabled using the CONFIG_BTF_ENABLE=Y kernel compilation flag). This is the case for most common nowadays.

If your system does not fit into any of the above - unfortunately, our eBPF sensor will not be able to run on your environment. However, this does not mean groundcover won’t collect any data. You will still be able to inspect your , see all and use with outer data sources.

let us know over Slack.
safe by design!
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