# Get CreateOTAUpdate failure details using the Amazon CLI
<a name="ota-create-failure"></a>

If the process of creating an OTA update job fails, there may be actions you can take to remedy the problem. When you create an OTA update job, the OTA manager service creates an IoT job and schedules it for the target devices, and this process also creates or uses other types of Amazon resources in your account (a code-signing job, an Amazon IoT stream, an Amazon S3 object). Any error encountered may cause the process to fail without creating an Amazon IoT job. In this troubleshooting section we give instructions on how to retrieve the details of the failure.

1. Install and configure the [Amazon CLI](https://docs.amazonaws.cn/cli/latest/userguide/cli-chap-welcome.html).

1. Run `aws configure` and enter the following information.

   ```
   $ aws configure
   Amazon Access Key ID [None]: {{AccessID}}
   Amazon Secret Access Key [None]: {{AccessKey}}
   Default region name [None]: {{Region}}
   Default output format [None]: json
   ```

   For more information, see [ Quick configuration with `aws configure`](https://docs.amazonaws.cn/cli/latest/userguide/cli-configure-quickstart.html#cli-configure-quickstart-config).

1. Run: 

   ```
   aws iot get-ota-update --ota-update-id {{ota_update_job_001}}
   ```

   Where {{ota\_update\_job\_001}} is the ID you gave the OTA update when you created it.

1. The output will look like this:

   ```
   {
       "otaUpdateInfo": {
           "otaUpdateId": "ota_update_job_001",
           "otaUpdateArn": "arn:aws-cn:iot:{{region}}:{{account_id}}:otaupdate/{{ota_update_job_001}}",
           "creationDate": 1584646864.534,
           "lastModifiedDate": 1584646865.913,
           "targets": [
               "arn:aws-cn:iot:{{region}}:{{account_id}}:thing/{{thing_001}}"
           ],
           "protocols": [
               "MQTT"
           ],
           "awsJobExecutionsRolloutConfig": {},
           "awsJobPresignedUrlConfig": {},
           "targetSelection": "SNAPSHOT",
           "otaUpdateFiles": [
               {
                  "fileName": "/12ds",
                   "fileLocation": {
                       "s3Location": {
                           "bucket": "{{bucket_name}}",
                           "key": "demo.bin",
                           "version": "Z7X.TWSAS7JSi4rybc02nMdcE41W1tV3"
                       }
                   },
                   "codeSigning": {
                       "startSigningJobParameter": {
                           "signingProfileParameter": {},
                           "signingProfileName": "{{signing_profile_name}}",
                           "destination": {
                               "s3Destination": {
                                   "bucket": "{{bucket_name}}",
                                   "prefix": "SignedImages/"
                               }
                           }
                       },
                       "customCodeSigning": {}
                   }
               }
           ],
           "otaUpdateStatus": "CREATE_FAILED",
           "errorInfo": {
               "code": "AccessDeniedException",
               "message": "S3 object demo.bin not accessible. Please check your permissions (Service: AWSSigner; Status Code: 403; Error Code: AccessDeniedException; Request ID: 01d8e7a1-8c7c-4d85-9fd7-dcde975fdd2d)"
           }
       }
   }
   ```

   If the create failed, the `otaUpdateStatus` field in the command output will contain `CREATE_FAILED` and the `errorInfo` field will contain the details of the failure.