We are remodeling our basement by replacing the linoleum flooring with ceramic tiles. The linoleum is glued to the cement floor. What's the best way to remove the linoleum? The glue? Do we need a subfloor or can the tile be placed right on the cement? If it can be placed right on the cement, does the cement need to be totally clean of glue, etc. for the ceramic tile to adhere? Lots of questions, I know Thank you!!