Upgrade from 6.x to 8.x require a full reinstallation/reconfiguration. Check this Guide, where the Migration Tool is no longer available so you would need to do the Manual Migration (page 10).
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Herman Robers
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If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check
https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.
In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
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Original Message:
Sent: Mar 09, 2023 03:40 AM
From: Jinyoung
Subject: Controller version upgrade : 6.5.x.x to 8.6.0.x
Hello
I am currently managing a controller using version 6.5.1.4 and planning to upgrade to version 8.6.0.x.
Is there any order to go through in the process of upgrading from 6.5.1.4 to 8.6.0.x?
Or is it okay to upload the 8.6.0.0 image right away?