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**To create a software update job for a core**
The following ``create-software-update-job`` example creates an over-the-air (OTA) update job to update the AWS IoT Greengrass Core software on the core whose name is ``MyFirstGroup_Core``. This command requires an IAM role that allows access to software update packages in Amazon S3 and includes ``iot.amazonaws.com`` as a trusted entity. ::
aws greengrass create-software-update-job \
--update-targets-architecture armv7l \
--update-targets [\"arn:aws:iot:us-west-2:123456789012:thing/MyFirstGroup_Core\"] \
--update-targets-operating-system raspbian \
--software-to-update core \
--s3-url-signer-role arn:aws:iam::123456789012:role/OTA_signer_role \
--update-agent-log-level WARN
Output::
{
"IotJobId": "GreengrassUpdateJob_30b353e3-3af7-4786-be25-4c446663c09e",
"IotJobArn": "arn:aws:iot:us-west-2:123456789012:job/GreengrassUpdateJob_30b353e3-3af7-4786-be25-4c446663c09e",
"PlatformSoftwareVersion": "1.9.3"
}
For more information, see `OTA Updates of AWS IoT Greengrass Core Software <https://docs.aws.amazon.com/greengrass/latest/developerguide/core-ota-update.html>`__ in the *AWS IoT Greengrass Developer Guide*.