---
title: "Mapping UI fails with error: 'No space left on device'"
slug: "mapping-ui-fails-with-error-no-space-left-on-device"
description: "NavVis VLX and M6 Mapping UI fails with '[Errno 28] No space left on device' when the recording SSD is full or corrupted. Copy the data off, delete it, retry mapping, and reformat the SSD to exFat only if the error returns."
tags: ["G11", "Error message", "G10", "G9"]
updated: 2025-12-02T13:59:06Z
published: 2025-12-02T13:59:06Z
canonical: "knowledge.navvis.com/mapping-ui-fails-with-error-no-space-left-on-device"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://knowledge.navvis.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Mapping UI fails with error 'no space left on device'

### Issue description

The Mapping UI fails with the following error message:

```plaintext
Ooops, an error occured!
We are very sorry, but something unexpected happened. An error occurred and we strongly recommend to restart the application or cold-restart the trolley.
This error has been logged; providing the log files to the NavVis staff will be of great help.
Backend returned error '[Errno 28] No space left on device: '/srv/data/datasets_rec/2021-09-29_19.58.17 
```

Additionally the following Ubuntu message might appear in a dark window on top of the screen:

```plaintext
Low disk Space on "srv"
The volume "srv" has only 0 bytes disk space remaining.
```

**![](https://cdn.document360.io/bf174766-fa1a-4fe1-a4d7-b1db1e7cb996/Images/Documentation/image-1706874786855.png?sv=2026-02-06&spr=https&st=2026-10-14T07%3A16%3A40Z&se=2026-10-14T08%3A16%3A40Z&sr=c&sp=r&sig=09gu7KqOrGPCRwCabICOgy60hTfgpL%2F5FJOi8eRUeSk%3D)**

### Scope

This solution applies to NavVis VLX and NavVis M6 System Software incl. 2.13.0.

## Troubleshooting procedure

The SSD used on the device is either full or corrupted. When a Dataset was started before this message pops up, it might not be complete or saved by the Safe-Shutdown mode.

1. Connect the SSD to a PC and copy all data on it to local storage. Use a 3rd party tool for safe copying (eg. [https://freefilesync.org/](https://freefilesync.org/)) to prevent any errors during copying.
2. Deleted the data from the SSD once it has been copied.
3. Try mapping again
4. If the error reoccurs, reformat the SSD to exFat as described in our [documentation](/v1/docs/formatting-an-ssd-card).

---

### FAQ

#### What error message appears when the Mapping UI fails?

The error message states: 'Ooops, an error occurred! We are very sorry, but something unexpected happened. An error occurred and we strongly recommend to restart the application or cold-restart the trolley.'

#### What does the Ubuntu message indicate?

The Ubuntu message indicates 'Low disk Space on "srv". The volume "srv" has only 0 bytes disk space remaining.'

#### What systems does this issue apply to?

This issue applies to NavVis VLX and NavVis M6 System Software including version 2.13.0.

#### What should I do if the SSD is full or corrupted?

You should connect the SSD to a PC, copy all data to local storage, delete the data from the SSD, and then try mapping again.

#### What tool can I use for safe copying of data from the SSD?

You can use a third-party tool like FreeFileSync for safe copying.

#### What should I do if the error reoccurs after trying to map again?

If the error reoccurs, you should reformat the SSD to exFat as described in the documentation.

User Interface

Solid State Drive

A dataset is a piece of a site, the result of a continuous recording with a NavVis mapping device or the result of an imported point cloud. Datasets can contain panoramic images and point clouds.