---
name: "ch-umount"
section: "1"
platform: "linux"
package: "charliecloud-runtime"
version: "0.21-1"
release: "Debian 11 (Bullseye)"
platforms: ["linux"]
url: "https://new.carta.tech/ch-umount"
---

# ch-umount(1)

Unmount a FUSE mounted squash filesystem and remove the mount point

## NAME

ch-umount - Unmount a FUSE mounted squash filesystem and remove the mount point

## SYNOPSIS

```
$ ch-umount MOUNTDIR
```

## DESCRIPTION

Unmount Charliecloud SquashFS file at target directory **MOUNTDIR**. Remove empty **MOUNTDIR** after successful unmounting.

Additional arguments:

- **--help**

  print help and exit

- **--version**

  print version and exit

## EXAMPLE

```
$ ls /var/tmp/debian
bin   dev  home  lib64  mnt  proc  run   srv  tmp  var
boot  etc  lib   media  opt  root  sbin  sys  usr  WEIRD_AL_YANKOVIC
$ ch-umount /var/tmp/debian
unmounted and removed /var/tmp/debian
$ ls /var/tmp/debian
ls: cannot access /var/tmp/debian: No such file or directory
```

## REPORTING BUGS

If Charliecloud was obtained from your Linux distribution, use your distribution’s bug reporting procedures.

Otherwise, report bugs to: \<*https://github.com/hpc/charliecloud/issues*\>

## SEE ALSO

[charliecloud(7)](/charliecloud/7.md)

Full documentation at: \<*https://hpc.github.io/charliecloud*\>

## COPYRIGHT

2014–2020, Triad National Security, LLC