And here as well
> Did the upgrade process fail?
no
> If you run 'sudo apt -f install' is any change suggested there?
> Did you modify the allowed Secure Boot certificates in your machine's firmware?
$ mokutil --sb-state This system does't support Secure Boot
product: MacBookPro11,4
And here as well
> Did the upgrade process fail?
no
> If you run 'sudo apt -f install' is any change suggested there?
no
> Did you modify the allowed Secure Boot certificates in your machine's firmware?
$ mokutil --sb-state
This system does't support Secure Boot
product: MacBookPro11,4