In the 'Before You Start the Upgrade' section it states:
The SLES move-to-sles10-sp3 patch cannot be used to migrate OES 2 SP2.
In this forum thread, it is stated:
"...As a note if you use the patch channel to upgrade choose ONLY the
'Move-to-OES2sp2' patch and NOT the 'Move-to-SLES10sp3' patch (at the same time or separately). One patch to rule them all..."