How to install rpm? I double-click the security signature and it is lost.
If you can't force installation, it's because your software is mandriva2008 version, not customized for fedora compilation, so it often can't be installed normally.
Solution:
1, go to rpmfinder to search fedora version of the program for installation.
2. If you only need a special library file, you can unpack the program and copy the corresponding file (not recommended).