# Identify the root volume type determined by your AMI The AMI that you use to launch an EC2 instance determines the type of the root volume. The root volume of an EC2 instance is either an EBS volume or an instance store volume. [Nitro-based instances](instance-types.md#instance-hypervisor-type) support only EBS root volumes. The following previous generation instance types are the only instance types that support instance store root volumes: C1, C3, D2, I2, M1, M2, M3, R3, and X1. ------ #### [ Console ] **To identify the root volume type determined by an AMI** 1. Open the Amazon EC2 console at [https://console.amazonaws.cn/ec2/](https://console.amazonaws.cn/ec2/). 1. In the navigation pane, choose **AMIs**, and select the AMI. 1. On the **Details** tab, check the value of **Root device type** as follows: + `ebs` – Instances launched from this AMI will get an EBS root volume + `instance store` – Instances launched from this AMI will get an instance store root volume. ------ #### [ Amazon CLI ] **To identify the root volume type determined by an AMI** Use the [describe-images](https://docs.amazonaws.cn/cli/latest/reference/ec2/describe-images.html) command. ``` aws ec2 describe-images \ --image-ids ami-0abcdef1234567890 \ --query Images[].RootDeviceType ``` The following is example output. ``` ebs ``` ------ #### [ PowerShell ] **To identify the root volume type determined by an AMI** Use the [Get-EC2Image](https://docs.amazonaws.cn/powershell/latest/reference/items/Get-EC2Image.html) cmdlet. ``` (Get-EC2Image ` -ImageId ami-0abcdef1234567890).RootDeviceType.Value ``` The following is example output. ``` ebs ``` ------