My customer has one master and 8 local controllers running AOS 6.5 version. He is implementing new AP-515 and I want to upgrade to 8.5.0.4 for this reason. I suggested using the automatic migration tool as some controllers are remote and it is difficult to get remote access during the upgrade process. We want to test the migration process using the tool in one site only 1st to verify the process and to test all functions after the migration.
Can we use the migration tool to upgrade one local controller only (out of 8) from 6 to 8 and leacy the master and other controllers in AOS 6.5? any caveats or risks?
Thank you,