Always take a backup of MAS_System (SQL database) and the MAS90 folder on your target system before attempting to begin a to-Premium migration.  That allows an easy reset if you encounter errors.  If that wasn't done, you might have to re-install Sage 100 on the target system.

(It's also a good idea, for Standard and Advanced, to migrate sourced from a MAS90 folder copy instead of your Live files).

Kevin:

Thanks very much.  The strange thing here is that the MAS_SYSTEM database was not created yet even though the log indicates otherwise.   I will do the re-install as you suggest.   Totally agree about migrating from a folder copy.

Kevin:

Thanks very much.  The strange thing here is that the MAS_SYSTEM database was not created yet even though the log indicates otherwise.   I will do the re-install as you suggest.   Totally agree about migrating from a folder copy.

The MAS_System database gets created during the initial software install of Premium, not during the migration.

OK.  So then it must have been just deleted and never got to the insert in the migration process.  I thought all the prepare would happen before any databases would be dropped.   So when I reinstall I will make a backup before the migration.