GetInstanceUefiData - Amazon Elastic Compute Cloud
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A binary representation of the UEFI variable store. Only non-volatile variables are stored. This is a base64 encoded and zlib compressed binary value that must be properly encoded.

When you use register-image to create an AMI, you can create an exact copy of your variable store by passing the UEFI data in the UefiData parameter. You can modify the UEFI data by using the python-uefivars tool on GitHub. You can use the tool to convert the UEFI data into a human-readable format (JSON), which you can inspect and modify, and then convert back into the binary format to use with register-image.

For more information, see UEFI Secure Boot in the Amazon EC2 User Guide.

Request Parameters

The following parameters are for this specific action. For more information about required and optional parameters that are common to all actions, see Common Query Parameters.


Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation. Otherwise, it is UnauthorizedOperation.

Type: Boolean

Required: No


The ID of the instance from which to retrieve the UEFI data.

Type: String

Required: Yes

Response Elements

The following elements are returned by the service.


The ID of the instance from which to retrieve the UEFI data.

Type: String


The ID of the request.

Type: String


Base64 representation of the non-volatile UEFI variable store.

Type: String


For information about the errors that are common to all actions, see Common client error codes.

See Also

For more information about using this API in one of the language-specific Amazon SDKs, see the following: