Hi Alex,
If you are using 6.3, maybe you need to use Inventory Manager.
The following article maybe could help you.
https://gtacknowledge.extremenetworks.com/articles/Solution/Inventory-Manager-Pre-and-Post-scripts
Best regards,
Hi,
Maybe this article could give you some hint.
What is the upgrade path for Extreme Management
https://gtacknowledge.extremenetworks.com/articles/Q_A/What-is-the-upgrade-path-for-Extreme-Manageme...
Best regards