# BlockDeviceMappingImage
## Properties
**bsu** | Option<[**crate::models::BsuToCreate**](BsuToCreate.md)> | | [optional]
**device_name** | Option<**String**> | The device name for the volume. For a root device, you must use `/dev/sda1`. For other volumes, you must use `/dev/sdX`, `/dev/sdXX`, `/dev/xvdX`, or `/dev/xvdXX` (where the first `X` is a letter between `b` and `z`, and the second `X` is a letter between `a` and `z`). | [optional]
**virtual_device_name** | Option<**String**> | The name of the virtual device (`ephemeralN`). | [optional]
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