At this point of time I’ve given up trying to upgrade MOSS 2007 to Sharepoint 2010 BETA using in-place upgrade approach.

I now try it using Content Database backup/restore approach.

It’s a very simple process that I was following:

– Create a new VM and install Sharepoint 2010 clean-fresh farm

– Install and deploy all custom WSPs that are currently deployed to MOSS 2007 farm

– Backup MOSS 2007 sites database

– Create a blank Sharepoint website in Sharepoint 2010 farm to restore content DB to

– Remove and take offline the existing content DB

– Restore and re-attach the MOSS 2007 content database

AND IT WORKED! WOOHOO!! The only error message  I was getting in the log file was:

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[STSADM] [SPContentDatabaseSequence] [ERROR] [2/8/2010 3:51:49 PM]: Found a missing feature Id = [c88c4ff1-dbf5-4649-ad9f-c6c426ebcbf5]

[STSADM] [SPContentDatabaseSequence] [ERROR] [2/8/2010 3:51:49 PM]: The feature with Id c88c4ff1-dbf5-4649-ad9f-c6c426ebcbf5 is referenced in the database, but is not installed on the current farm. The missing feature may cause upgrade to fail. Please install any solution which contains the feature and restart upgrade if necessary.

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I think I must have missed a feature.

But anyway, at the point of writing this article, I can say that this will be the better approach of upgrading 2007 sites to Sharepoint 2010 compared to in-place upgrade.

Cheers,

Tommy