[Samba] Question RE upgrading Linux domain member

[Jakob Curdes]

Hello, I want to do an OS upgrade with a larger Linux domain member (DCs 
are SAMBA4, but probably irrelevant).

My plan is to clone the system, decativate all samba services, , then 
demote the old system from the domain, thne join the new one. But 
probably I need to demote the new system (same name) also before 
re-joning? Can I demote two times ???

What happens if I just join the new system to the domain with the same 
name? A name change would be hard to do as the name is on all the file 
shares on various client PCs.

Sure there must be a way to do this right without changing the name and 
without long downtimes?

Regards, Jakob