We tried to perfrom an upgrade of our production Biztalk 2006 Enterprise Edition server to R2 this morning. We followed the instructions that were given in the Upgrading to BizTalk Server 2006 R2 from BizTalk Server 2006 guide. Shortly after we launched setup clicked Install Microsoft BizTalk Server 2006 R2 it comes back with an Upgrade fails: BAMPrimaryImport Database on server X is being upgraded from a different machine. Please execute setup after the database upgrade has finished. In case an error occurred while upgrading it previously, please restore this database and execute setup again. Excerpt from the Setup log ------------------------------- 6:34:49 AM Warning] BAMPrimaryImport Database on server X is being upgraded from a different machine. Please execute setup after the database upgrade has finished. In case an error occured while upgrading it previously, please restore this database and execute setup again. [6:34:49 AM Error] d:\depot2300\mercury\private\setup\voyager\setuphook\bts04upgrade.cpp(1183): Unspecified error [6:34:49 AM Error] d:\depot2300\mercury\private\setup\voyager\setuphook\bts04upgrade.cpp(210): Unspecified error [6:34:49 AM Error] d:\depot2300\mercury\private\setup\voyager\setuphook\bts04upgrade.cpp(386): Unspecified error [6:34:49 AM Error] d:\depot2300\mercury\private\setup\voyager\setuphook\prehook.cpp(242): Unspecified error [6:34:49 AM Info] Leaving external pre hook init function [6:34:49 AM Info] Prehook Init function returned: -2147467259. [6:34:49 AM Info] Prehook Init function failed and returned the following error message: BAMPrimaryImport Database on server X is being upgraded from a different machine. Please execute setup after the database upgrade has finished. In case an error occured while upgrading it previously, please restore this database and execute setup again. === Logging stopped: 6:34:52 AM Wednesday, July 02, 2008 === Has anyone seen this. So far we haven't been able to turn up anything. Tim