What is the correct syntax to do a major version upgrade of Aurora Postgres on AWS RDS from the CLI?

Question

I am trying to run the following command to upgrade from Postgres 10.14 to 11.9

aws rds modify-db-cluster \
--db-cluster-identifier [my db cluster identifier] \
--engine-version 11.9 \
--allow-major-version-upgrade \
--apply-immediately

When I try to run it I get the following message:

Unknown options: --allow-major-version-upgrade

But the documentation

https://docs.aws.amazon.com/AmazonRDS/latest/APIReference/API_ModifyDBCluster.html

lists AllowMajorVersionUpgrade as the very first parameter.

What is the correct syntax to do a major version upgrade of Aurora Postgres on AWS RDS from the CLI?

First, I would look at the CLI documentation docs.aws.amazon.com/cli/latest/reference/rds/… instead of the raw API documentation to determine the correct CLI syntax. Second, I suggest checking that you have the latest version of the CLI installed. — Mark B

irrational irrational · Accepted Answer · 2021-02-02T23:05:43

It turned out that Mark B was correct (unfortunately he posted a comment instead of an answer). Upgrading from CLI 1 to CLI 2 fixed the issue.

What is the correct syntax to do a major version upgrade of Aurora Postgres on AWS RDS from the CLI?

1 Answers