Somebody in the thread at some point said: > ./libmylib.so.1 ln -s /usr/lib/libmylib.so.1 libmylib.so The > requirement is /usr/lib directory will have : libmylib.so.x > libmylib.so -> libmylib.so.x Throw out your ln command altogether. Just place the .so in /usr/lib and run /sbin/ldconfig in %post. It will make the symlinks according to the library soname. -Andy