No support for RHEL with high availability in-place upgrade

Wed, 15 Nov 2023 23:06:42 +1100

Well, if you know you know, otherwise, you could have wasted the whole evening trying to upgrade RHEL 7.9 with High Availability to RHEL 8.x, and failed!

If you read this post, head to the link at [1] and you’d see that Red Hat does not support i-place upgrades or rolling-upgrades of cluster nodes from one major release of RHEL to another. Here is an extract from [1]:

Red Hat does not support in-place upgrades or rolling-upgrades of cluster nodes from one major release of RHEL to another. For example, there is no supported method for updating some nodes in a cluster from RHEL 6 to RHEL 7, introducing them into the cluster with existing RHEL 6 nodes to take over resources from them, and then updating the remaining RHEL 6 nodes. Upgrades in major releases of RHEL must be done by migrating services from a running cluster on the old release to another cluster running the new release.

Query Latest Debian 12 AMI Id Using AWS SSM Parameter Store

Sat, 05 Aug 2023 00:24:53 +1000

Debian publishes their releases of Amazon Machine Image (AMI) for bookworm at Debian bookworm on Amazon EC2 [1]. There, you can find the AMIs for various regions and two architecture amd64 and arm64.

Another way to search for AMI for Debian 12 (bookworm) is to use AWS CLI with describe-images. Here is an example on how to list the 3 most recent AMIs of Debian 12 (amd64 architecture), sorted by most recent to the oldest:

Describe-Images on Kenno's Open Note

No support for RHEL with high availability in-place upgrade

Query Latest Debian 12 AMI Id Using AWS SSM Parameter Store