No I have not after a few times trying the upgrade. Regarding the excessive logs that you are encountering, that should also have been fixed by the supplementary patch. I guess I have to stay on 9-202502 for now and wait for Cisco to roll out another...
I followed your solution but still never got around the "Waiting for frontend..." message even waiting for at least 30 minutes after the mandatory patch was applied.
Just wondering how this migration turned out. We are in the planning stage to migrate two Nexus 7k (no vPC) - migration from SUP1/FAB1/5.2(4) to SUP2/FAB2/6.2(20) and doing the process that you have outlined by shutting one of the N7K, swap Sup and F...