> But if the decision of what to install can be made with only the > metadata, then why use headers? Just install the full rpms... B/c an rpm transaction set must be packed with headers. And it is best to test the transaction before you download anything heavy. > PS: I've missed the last developments of yum, but I thought the point of > metadata was to avoid the headers? Yes, it is - it is to avoid downloading ALL The headers. You're only downloading the headers of the packages that are having some action done to them by the transaction set. -sv