---
title: Show processes that block umount
aliases: /posts/2021-10-26-processes-accessing-mountpoints
summary: >
  A quick oneliner to list running processes that prevent a filesystem from
  being unmounted. Using `lsof` or `fuser` for this.
date: 2021-10-26T10:06:47+02:00
lastmod: 2024-09-28T23:48:06+0000
categories: [computerstuff]
tags: [linux]
---

Another quick one: I forget this command on a permanent basis, so I write this
down here -- maybe this helps.

```console
$ lsof +f -- /media/mountpoint
```

#### Update on 2021-11-21

You could also use `fuser`. I prefer this one because somehow I cannot use
autocompletion with lsof and fuser lets me complete the paths.

```console
$ fuser -vm /media/mountpoint
```