This may be a trivial question for some as I am new to working with Ubuntu Core. Is there a way to get a new public key installed if you don't have a previous method for authenticating?
I had a raspberry pi running from a previous install which had two public keys from my SSO account installed. The problem is that I needed to access the device from a new machine which uses a public key that is not in the
authorized_keys directory and I could no longer use a previous machine that was authorized to update this file.
Is there a way to do this , given that by nature username/password authentication is disabled ? The only way I could find to recover is to re-image the device and go through console setup again where it re-imports the public keys (including my new one) from my SSO account. I feel I'm missing something. Thanks.