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# MacOS - "No mountable file systems" issue when mounting ISO file
- URL: https://www.bagz.fr/macos-no-mountable-file-systems-issue-when-mounting-iso-file/
- Published: 2020-10-26T15:07:48.000Z
- Updated: 2026-09-29T09:12:43.000Z
- Author: bgazui
- Tags: MacOS, #Migrated-1790668826633, #wp, #wp-post, #Import 2026-09-29 08:00

If you try to mount an ISO file (like a Linux distribution) on MacOS and you get that weird error saying "*No mountable file systems*":

![](https://www.bagz.fr/content/images/Screenshot-2020-10-26-at-15.37.12.png) 

Then, you can easily find a workaround by using CLI.

```
% mkdir /mnt/iso
% hdiutil attach -nomount FILENAME.iso
/dev/disk2              FDisk_partition_scheme          
/dev/disk2s2            0xEF
% mount -t cd9660 /dev/disk2 /mnt/iso
```

And now, the content of your iso file is available in */mnt/iso* directory.

To unmount the ISO file, just type:

```
% umount /mnt/iso
```