We're attempting a swing migration in our lab that's setup with two DCs:
OriginalDC: 2008 R2 DC (single forest, single domain) at 2008 functional level.
TempDC: has been promoted to a global catalog DC; running 2008 R2 as well.
The swing documentation explicitly states that event ID 13516 must exist for the dcpromo of TempDC to be considered successful and to proceed with the documentation. However,
repladmin /showrepl only has
success entries and SYSVOL shares are all present, dsa.msc shows all the users and objects, etc. of the OriginalDC.
Further to this, the File Replication services is disabled and enabling it throws errors. Combing through the event log, I've found multiple references that seem to indicate that File Replication is no longer necessary and is deprecated in favor of Distributed File Services (DFS) replication.
We're working with support right now, but I'd like to hear from the SF community AD gurus on this.