Schema Update Blank Title 137732

Epicor 9.05.702a
I need to update my schema holder but lacking a piece of info or step.  Support says I need to copy over my mfgsyssh files to the db I am working in and then run the UD Schema update.  There are several files with that name just different extensions.  One place I read online it said to copy all.  Does any one have some good reliable steps to update the schema holders.
thanks Kim