Convert t2.2xlarge to t3.2xlarge - Ubuntu Server 20.04 LTS (HVM)

Hi brunoaduarte,

I have done some testing and I think I know what is your issue.

Is your affected instance in us-east-1e AZ?

t3.2xlarge instances are not offered in us-east-1e AZ. This is the only AZ in us-east-1 region that does not have this instance type.

You can check the offering via AWS CLI, like this:

# aws ec2 describe-instance-type-offerings --location-type availability-zone  --filters Name=instance-type,Values=t3.2xlarge --region us-east-1 --output table  
-------------------------------------------------------  
|            DescribeInstanceTypeOfferings            |  
_-----------------------------------------------------_  
||               InstanceTypeOfferings               ||  
|_--------------_--------------_---------------------_|  
|| InstanceType |  Location    |    LocationType     ||  
|_--------------_--------------_---------------------_|  
||  t3.2xlarge  |  us-east-1b  |  availability-zone  ||  
||  t3.2xlarge  |  us-east-1c  |  availability-zone  ||  
||  t3.2xlarge  |  us-east-1a  |  availability-zone  ||  
||  t3.2xlarge  |  us-east-1d  |  availability-zone  ||  
||  t3.2xlarge  |  us-east-1f  |  availability-zone  ||  
|_--------------_--------------_---------------------_|  
  

Source:

https://aws.amazon.com/premiumsupport/knowledge-center/ec2-instance-type-not-supported-az-error/  

If you would like to use AWS CLI, first you have to install it:

https://docs.aws.amazon.com/cli/latest/userguide/install-cliv2.html  

Then configure:

https://docs.aws.amazon.com/cli/latest/userguide/cli-chap-configure.html  

In order to solve your issue, create an AMI out of your instance and launch a new, t3.2xlarge instance in any other AZ. You can specify AZ in the "Next: Configure Instance Details" -> "Subnet" dropdown menu.

Here you will find information regarding creation of AMI:

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/creating-an-ami-ebs.html#how-to-create-ebs-ami  

Hope that this will help you.

Regards,
Daniel