The instructions on the Upgrade/Downgrade guide to manually install the APIC software via the CIMC and Sol connection are stated around pages 24-27. As you can see in the snippet, the path is the TFTP server which I'm using (TFTP32) on my laptop. I use it successfully for everything else. but following the instructions here, the APIC won't connect. The SOL connection which is just an ssh to the CIMC does not connect. Obviously tftp32 has no username and password so I just hit enter on that part. Is it not compatible with tftp32?
