My Mathematica 10.0 doesn’t start anymore (hangs while “Initializing kernels…“). I already reduced the problem to the file pacletSiteData_10.pmd2 in ~/.Mathematica/Paclets/Configuration—if I remove it Mathematica starts again but recreates the file.

Can I somehow get Mathematica to be a little more verbose (there are no log files in ~/.Mathematica/Logs)?

Any recommendations?

Best regards, Florian