i want to upgrade my GW7 to Groupwise 8

The current GW7 works on OES1 Linux. DB is on reiserfs.
I have a brandnew OES2 SP1 in the Tree and want to migrate the GW7 to this Server, upgrade it to GW8 and move the DB to NSS. The file paths leaves unchanged.

So what is the recommended way to do that?

I would do the following:

Move the current dom and po dirs to the new server with dbcopy.
Install/upgrade GW8 on the new server and choose the new dom and po directories for upgrading.

I think it makes no trouble moving the DB from ReiserFS to NSS cause all files are actually in lowercase.

Am I right and does this procedure work?