Quick steps which should be done as pre-migration steps when you want to migrate System Center Configuration Manager 2007 R2 to System Center 2012 SP1 Configuration Manager.

Diagram below shows schematics of the lab environment prepared for migration testing.

SCCM Migration from 2007 to 2012

Environment

Servers included in migration process:

  • LAB-DC-01 – Domain Controller for the environment
  • LAB-SQL-2008 – SQL Server 2008 R2 for System Center Configuration Manager 2007 R2
  • LAB-SQL-2012 – SQL Server 2012 for System Center 2012 SP1 Configuration Manager
  • LAB-SC-2007 – System Center Configuration Manager 2007 R2
  • LAB-SC-2012 – System Center 2012 SP1 Configuration Manager

Steps

  1. Add computer account LAB-SC-2012 to SMS Admins local group on LAB-SC-2007.
  2. Add computer account LAB-SC-2012 to Distributed COM Users on LAB-SC-2007.
  3. Add Read permissions to Site obejct in System Center Configuration Manager 2007 R2 hierarchy for computer account LAB-SC-2012.
  4. Add db_owner role to System Center Configuration Manager 2007 R2 database on LAB-SQL-2008 for computer account LAB-SC-2012.

Summary

Once all permissions and group memberships are set correctly you can go to System Center 2012 SP1 Configuration Manager console, then Administration and then Migration\Source Hierarchy and define Source Site Credentials (use computer account as source credentials).