2016-08-18 12:43:42,170 INFO Using config files '['./DistUpgrade.cfg.trusty']'
2016-08-18 12:43:42,170 INFO uname information: 'Linux kosmos 3.19.0-66-generic #74~14.04.1-Ubuntu SMP Tue Jul 19 19:56:11 UTC 2016 x86_64'
2016-08-18 12:43:42,586 INFO apt version: '1.0.1ubuntu2.14'
2016-08-18 12:43:42,587 INFO python version: '3.4.3 (default, Oct 14 2015, 20:28:29) 
[GCC 4.8.4]'
2016-08-18 12:43:42,589 INFO release-upgrader version '16.04.16' started
2016-08-18 12:43:42,686 INFO locale: 'en_US' 'UTF-8'
2016-08-18 12:43:42,832 DEBUG Using 'DistUpgradeViewGtk3' view
2016-08-18 12:43:42,886 DEBUG aufsOptionsAndEnvironmentSetup()
2016-08-18 12:43:42,887 DEBUG enabling full overlay from commandline
2016-08-18 12:43:42,887 DEBUG using '/tmp/upgrade-rw-nqo39h2p' as aufs_rw_dir
2016-08-18 12:43:42,888 DEBUG using '/tmp/upgrade-chroot-ru0fxrr2' as aufs chroot dir
2016-08-18 12:43:42,888 DEBUG enabling aufs full overlay (from config)
2016-08-18 12:43:42,888 DEBUG enable dpkg --force-overwrite
2016-08-18 12:43:42,910 DEBUG creating statefile: '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'
2016-08-18 12:43:46,343 DEBUG lsb-release: 'trusty'
2016-08-18 12:43:46,343 DEBUG setupAufs
2016-08-18 12:43:46,343 DEBUG is_submount: /sys ['/bin', '/boot', '/etc', '/initrd', '/lib', '/lib32', '/lib64', '/sbin', '/usr', '/var']
2016-08-18 12:43:46,343 DEBUG is_submount: /proc ['/bin', '/boot', '/etc', '/initrd', '/lib', '/lib32', '/lib64', '/sbin', '/usr', '/var']
2016-08-18 12:43:46,343 DEBUG is_submount: /dev ['/bin', '/boot', '/etc', '/initrd', '/lib', '/lib32', '/lib64', '/sbin', '/usr', '/var']
2016-08-18 12:43:46,343 DEBUG is_submount: /dev/pts ['/bin', '/boot', '/etc', '/initrd', '/lib', '/lib32', '/lib64', '/sbin', '/usr', '/var']
2016-08-18 12:43:46,343 DEBUG is_submount: /run ['/bin', '/boot', '/etc', '/initrd', '/lib', '/lib32', '/lib64', '/sbin', '/usr', '/var']
2016-08-18 12:43:46,344 DEBUG is_submount: / ['/bin', '/boot', '/etc', '/initrd', '/lib', '/lib32', '/lib64', '/sbin', '/usr', '/var']
2016-08-18 12:43:46,344 DEBUG is_submount: /sys/fs/cgroup ['/bin', '/boot', '/etc', '/initrd', '/lib', '/lib32', '/lib64', '/sbin', '/usr', '/var']
2016-08-18 12:43:46,344 DEBUG is_submount: /sys/fs/fuse/connections ['/bin', '/boot', '/etc', '/initrd', '/lib', '/lib32', '/lib64', '/sbin', '/usr', '/var']
2016-08-18 12:43:46,344 DEBUG is_submount: /sys/kernel/debug ['/bin', '/boot', '/etc', '/initrd', '/lib', '/lib32', '/lib64', '/sbin', '/usr', '/var']
2016-08-18 12:43:46,344 DEBUG is_submount: /sys/kernel/security ['/bin', '/boot', '/etc', '/initrd', '/lib', '/lib32', '/lib64', '/sbin', '/usr', '/var']
2016-08-18 12:43:46,344 DEBUG is_submount: /sys/firmware/efi/efivars ['/bin', '/boot', '/etc', '/initrd', '/lib', '/lib32', '/lib64', '/sbin', '/usr', '/var']
2016-08-18 12:43:46,344 DEBUG is_submount: /run/lock ['/bin', '/boot', '/etc', '/initrd', '/lib', '/lib32', '/lib64', '/sbin', '/usr', '/var']
2016-08-18 12:43:46,344 DEBUG is_submount: /run/shm ['/bin', '/boot', '/etc', '/initrd', '/lib', '/lib32', '/lib64', '/sbin', '/usr', '/var']
2016-08-18 12:43:46,344 DEBUG is_submount: /run/user ['/bin', '/boot', '/etc', '/initrd', '/lib', '/lib32', '/lib64', '/sbin', '/usr', '/var']
2016-08-18 12:43:46,344 DEBUG is_submount: /sys/fs/pstore ['/bin', '/boot', '/etc', '/initrd', '/lib', '/lib32', '/lib64', '/sbin', '/usr', '/var']
2016-08-18 12:43:46,344 DEBUG is_submount: /boot/efi ['/bin', '/boot', '/etc', '/initrd', '/lib', '/lib32', '/lib64', '/sbin', '/usr', '/var']
2016-08-18 12:43:46,344 WARNING mountpoint /boot/efi submount of systemdir
2016-08-18 12:43:46,344 ERROR aufs setup failed
2016-08-18 12:43:48,869 ERROR self.prepared() failed
2016-08-18 12:43:51,576 DEBUG enabling apt cron job