Hi all and
@CaseySJ of course !
As Ventura seems to work properly with a smooth transition from Monterey regarding the apps (most of them are running without update) I decided to reorganise my 2TB SSD and took advantage of this to reinstall on small partitions Big Sur and Catalina (most of you will think that having 4 macOS on the same Mac is totally unnecessary, but that's the main reason why it therefore becomes absolutely mandatory
).
I remember that to properly boot Catalina we need to setup SecureBootModel to "Disable" while for the 3 others it is setup on "Default".
After testing, I see that I can boot the 4 macOS with SecureBootModel setup to "Disable".
My question is simple:
Rather than having 2 different EFI, can I use only one?
If I remember well I will just have to change SecureBootModel to "Default" when doing some upgrade on the system.
Is that correct or did I miss something?
Thanks for your support as usual !