Forum Discussion
Migrating from Server 2012 Essentials to Server 2019
The two prerequisites to introducing the first 2019 or 2022 domain controller are that domain functional level needs to be 2008 or higher and older sysvol FRS replication needs to have been migrated to DFSR
I'd use dcdiag / repadmin tools to verify health `correcting all errors found` before starting `any` operations. Then stand up the new 2019 or 2022, patch it fully, license it, join existing domain, add active directory domain services, promote it also making it a GC (recommended), transfer FSMO roles over (optional), transfer pdc emulator role (optional), use dcdiag / repadmin tools to again verify health, when all is good you can decommission / demote old one.
Do not begin the process until the FRS->DSFR migration is complete.
Mark_Albin just checking if there's any progress or updates? please don't forget to close up the thread here by marking helpful replies.
Hi Dave, I will be looking into this more in a couple of days. I believe I ran dcdiag and repadmin and everything was fine. I will update my findings.
