Thank you for your quick response. 'ls -al /' tells me: [...] lrwxrwxrwx. 1 root root 7 16. Aug 2014 lib -> usr/lib lrwxrwxrwx. 1 root root 9 16. Aug 2014 lib64 -> usr/lib64 [...] So /lib should be just a symbolic link to /usr/lib in Fedora 22. If you need any other data/logs of my system, just tell it!