---
title: OpenConfiguration.Mode.readOnly
framework: diskimagekit
role: symbol
role_heading: Case
path: diskimagekit/openconfiguration/mode-swift.enum/readonly
---

# OpenConfiguration.Mode.readOnly

Open the disk image in read-only mode.

## Declaration

```swift
case readOnly
```

## Discussion

Discussion Use this mode when opening the base image of a stacked disk image.