> I wonder about if I should do something to the file openpci.library-disable
> after updating to Mos2.5?

As MorphOS 2.5 comes with a new version of that library, I'd guess it's the old version renamed by the installer. Recent version reads "openpci.library 2.1 (08.10.09) C 2009 Benjamin Vernoux". I'd suggest you delete the renamed one.