Sorry for the mistake, please read #699437 instead of #688437. The direct link to the original bug report : http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=699437 And the direct link to the error screen : http://beilagen.dreael.ch/Diverses/dmraid_Wheezy_Bugs/Boot_Fehler_sporadisch.jpg Best regards, Quentin Lefebvre