HELLO ALL THERE. I have attempted for the first time today to install Fedora core 3 adding all the software I use such audacity, planet ccrma applications apt from yum and several others. I then upgraded to FC4 to find that neither YUM nor APT are functioning returning the following messages? YUM [root@localhost bulabula]# yum update Repository extras already added, not adding again Setting up Update Process Setting up repositories Cannot open/read repomd.xml file for repository: livna-stable failure: repodata/repomd.xml from livna-stable: [Errno 256] No more mirrors to try. APT apt-get: error while loading shared libraries: librpm-4.3.so: cannot open shared object file: No such file or directory. ANY SOLUTION? MIRCO