[[faq]]
== Frequently asked questions

This section contains frequently asked questions about Metricbeat. Also check out the
https://discuss.elastic.co/c/beats/metricbeat[Metricbeat discussion forum].

[float]
[[freebsd-no-such-file]]
=== Fix for `open /compat/linux/proc: no such file or directory` error on FreeBSD?

The system metricsets rely a Linux comparability layer to retrieve metrics on
FreeBSD. You need to mount the Linux procfs filesystem using the following
commands. You may want to add these filesystems to your `/etc/fstab` so they are
mounted automatically.

[source,sh]
----
sudo mount -t procfs proc /proc
sudo mkdir -p /compat/linux/proc
sudo mount -t linprocfs /dev/null /compat/linux/proc
----

include::../../libbeat/docs/faq-limit-bandwidth.asciidoc[]

include::../../libbeat/docs/shared-faq.asciidoc[]
