I started an sbs2003 to sbs2011 migration earlier today. I ran the migration wizard on the destination server with-updates, which caused many serious errors in the installation, so I wiped the server, reinstalled sbs2011, and restarted the migration.
All seemed normal until the last step when it says I don't need to do anything further and that this process will take up to 30 minutes or more. Then it said there was a fatal error, installation stopped, and that The server was not promoted to a domain controller.
Could this be because the previously failed installation used the same server name as what I'm trying to do now? The source server is "SERVER02" and destination server will be "SERVER03". DHCP was turned off on source server so I fixed that. But now I'm back to reformatting the destination server again but I assume that I need to "remove" the original migration server remnants from the source server so now the installation/migration will successfully complete.
When I go to AD Users and Computers in SERVER02 now it does show SERVER02 and SERVER03 but I imagine that it's more complicated than just deleting SERVER03 there to get the sbs2011 installation and migration to complete successfully.