MIGRATE FRS TO DFSR REPLICATION, migrate server 2016 dc to server 2019 ; FRS is no go, need do migration to DFSR first

 

MIGRATE FRS TO DFSR REPLICATION

https://itsimple.info/?p=1059

https://docs.microsoft.com/en-us/windows-server/storage/dfs-replication/migrate-sysvol-to-dfsr

I run scripts according to the first link, output as below

The server being promoted does not support FRS and cannot be promoted as a replica into the specified domain.

You MUST migrate the specified domain to use DFS Replication using the DFSRMIG command before continuing.

For more information, see https://go.microsoft.com/fwlink/?linkid=849270.

Repadmin /syncall /force /APed

Dfsrmig /setglobalstate 1

Dfsrmig /getmigrationstate
dfsrmig /getmigrationstate

All domain controllers have migrated successfully to the Global state ('Prepared').
Migration has reached a consistent state on all domain controllers.
Succeeded.
Dfsrmig /setglobalstate 2
Dfsrmig /setglobalstate 2

Current DFSR global state: 'Prepared'
New DFSR global state: 'Redirected'

Migration will proceed to 'Redirected' state. The SYSVOL share
will be changed to SYSVOL_DFSR folder,
which is replicated using DFSR.

Succeeded.
Dfsrmig /setglobalstate 3
Dfsrmig /setglobalstate 3

Current DFSR global state: 'Redirected'
New DFSR global state: 'Eliminated'

Migration will proceed to 'Eliminated' state. It is not possible
to revert this step.

If any read-only domain controller is stuck in the 'Eliminating' state for too long
 run with option /DeleteRoNtfrsMember.
Succeeded.

Thanks to the first author as Microsoft docs are a long list of mess