#Pre-Upgrade Preparation

Supported upgrade paths:

• From 4.0 → 4.2
• From 4.1 → 4.2

Before starting, ensure your current platform version is within the supported upgrade range.

#Important Notes

• Ensure the directory /cpaas/minio on the control plane nodes of global cluster has at least 120 GB of free disk space.
• Make sure that ALL clusters are running Kubernetes versions within the supported range. See details below.

#Kubernetes prerequisites

#Run the Checklist

Contact technical support to obtain the checklist script and run it against the target platform to verify upgrade readiness.

#Download the Packages

From the Customer Portal, download the Core Package.

If you want to upgrade cluster Extensions during the upgrade, follow these steps:

1. Navigate to the following path: [Marketplace - Batch Download - Upgrade - Post-ACP v4.0 Upgrades]
2. Download the ac-get-app.sh .
3. Upload the script to the control node of Global cluster in your environment.
4. Run the script with bash ac-get-app.sh.
5. After it finishes, import the generated apps.yaml back into the Customer Portal to align the extensions list.

In addition, navigate to the CLI Tools section in the Customer Portal and download the violet tool. This tool is required for uploading Extensions. For more information about violet, see Upload Packages.

violet push <path/to/directory/only_put_topolvm_plugin_here> \
  --target-catalog-source "platform" \
  --platform-address "https://example.com" \
  --platform-username "<platform_user>" \
  --platform-password "<platform_password>" \
  --clusters "<cluster_name>"