I got the problem: I changed the source list for the downloadable packages and found that 170 packages where not downloaded, one of them beeing a prior kernel version needed to upgrade to the one used on precise. Sorry for the inconveniences. This report is now closed.
I got the problem: I changed the source list for the downloadable packages and found that 170 packages where not downloaded, one of them beeing a prior kernel version needed to upgrade to the one used on precise. Sorry for the inconveniences. This report is now closed.