happy new year!
looks like the server with the mirror-list did not make it to 2013 :-(
Could not retrieve mirrorlist
http://apt.kde-redhat.org/apt/kde-redhat/fedora/mirrors-testing error was
12: Timeout on
http://apt.kde-redhat.org/apt/kde-redhat/fedora/mirrors-testing: (28,
'')
Fehler: Cannot find a valid baseurl for repo: kde-testing