I have a problem about APIC downgrading from 3.2(3n) to 2.2(2f). According to Cisco recommendation path , I have successfully downgraded to 3.0(2n). But when I begin to downgrade from 3.0(2n) to 2.2(2f), there is an error for spine while booting(shows "unable to detect ns0 device"). Please see the attached capture. I also tried to downgrade from 3.2(3n) to 2.2(4r), but I met the same error info on spine. I need an urgent help to resolve this issue if possible.
