I migrated to a new machine (Mac) and need a texlive 2013 installation there. I thought I could just copy over all files from my old machine, but this does not seem to work since the preference pane does not know about the 2013 files, so I cannot activate texlive 2013. I vaguely remember that there is just a symbolic link to be set, but I cannot find this information. So: is there a way to fix this quickly or is there a place where I can download the Mactex 2013 package? I found webpages offering this, but they all link to the current MacTex package (although claiming differently).