You can upgrade a database that was created using a previous release of Microsoft Exchange Server to the current version. The correct syntax for performing this function is edbutil /u <database name> /d<previous .dll> [options].
Note This utility should only be used to upgrade a database after an internal database format change has occurred.
The following table is a list of the parameters and options to use with EDBUTIL when upgrading a database. For options, you can use zero or more of the switches, separated by a space.
Parameters and Options | Description |
<Database name> | File name of the database to upgrade. |
/d<previous .dll> | File name of the .dll file that came with the release of Microsoft Exchange Server from which you are upgrading. |
/b<db> | Makes a backup copy under the specified name. |
/t<db> | Sets the temporary database name with a default name of Tempupgd.edb. |
/p | Preserves the temporary database indicating not to instate. |
/n | Dumps the upgrade information to a file called Upgdinfo.txt. |
/o | Suppresses the logo. |
Before you upgrade the database, the database should be in a consistent state. If the database is not in a consistent state, an error message will be returned. If you disable instating by using the /p switch, the original database is preserved unchanged, and the temporary database will contain the upgraded version of the database.