I must say it looks a lot like the bugs reported in these questions : http://askubuntu.com/questions/449325/failed-upgrade-of-l-xubuntu-13-10-to-14-04 and http://ubuntuforums.org/showthread.php?t=2219927
I must say it looks a lot like the bugs reported in these questions : askubuntu. com/questions/ 449325/ failed- upgrade- of-l-xubuntu- 13-10-to- 14-04 ubuntuforums. org/showthread. php?t=2219927
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