2016-01-23 04:24:12,161 INFO Using config files '['./DistUpgrade.cfg.trusty']'
2016-01-23 04:24:12,161 INFO uname information: 'Linux tru 3.19.0-47-generic #53~14.04.1-Ubuntu SMP Mon Jan 18 16:09:14 UTC 2016 x86_64'
2016-01-23 04:24:12,161 INFO apt version: '1.0.1ubuntu2'
2016-01-23 04:24:12,161 INFO python version: '3.4.3 (default, Oct 14 2015, 20:28:29) 
[GCC 4.8.4]'
2016-01-23 04:24:12,163 INFO release-upgrader version '16.04.3' started
2016-01-23 04:24:12,642 INFO locale: 'en_US' 'UTF-8'
2016-01-23 04:24:13,359 DEBUG Using 'DistUpgradeViewGtk3' view
2016-01-23 04:24:13,541 DEBUG aufsOptionsAndEnvironmentSetup()
2016-01-23 04:24:13,544 DEBUG using '/tmp/upgrade-rw-ks_d9mrl' as aufs_rw_dir
2016-01-23 04:24:13,545 DEBUG using '/tmp/upgrade-chroot-rmf8ojnd' as aufs chroot dir
2016-01-23 04:24:13,546 DEBUG enable dpkg --force-overwrite
2016-01-23 04:24:13,597 DEBUG creating statefile: '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'
2016-01-23 04:24:25,113 DEBUG lsb-release: 'trusty'
2016-01-23 04:24:25,115 DEBUG _pythonSymlinkCheck run
2016-01-23 04:24:25,136 DEBUG openCache()
2016-01-23 04:24:25,137 DEBUG No such plugin directory: ./plugins
2016-01-23 04:24:25,137 DEBUG plugins for condition 'PreCacheOpen' are '[]'
2016-01-23 04:24:25,137 DEBUG plugins for condition 'xenialPreCacheOpen' are '[]'
2016-01-23 04:24:25,138 DEBUG plugins for condition 'from_trustyPreCacheOpen' are '[]'
2016-01-23 04:24:25,138 DEBUG quirks: running PreCacheOpen
2016-01-23 04:24:25,138 DEBUG running Quirks.PreCacheOpen
2016-01-23 04:24:27,742 DEBUG /openCache(), new cache size 73502
2016-01-23 04:24:27,746 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-gnome-desktop')
2016-01-23 04:24:27,746 DEBUG checkViewDepends()
2016-01-23 04:24:27,747 DEBUG running doUpdate() (showErrors=False)
2016-01-23 04:24:42,581 DEBUG openCache()
2016-01-23 04:24:45,403 DEBUG /openCache(), new cache size 73502
2016-01-23 04:24:45,403 DEBUG doPostInitialUpdate
2016-01-23 04:24:45,404 DEBUG plugins for condition 'PostInitialUpdate' are '[]'
2016-01-23 04:24:45,405 DEBUG plugins for condition 'xenialPostInitialUpdate' are '[]'
2016-01-23 04:24:45,405 DEBUG plugins for condition 'from_trustyPostInitialUpdate' are '[]'
2016-01-23 04:24:52,213 DEBUG MetaPkgs: ubuntu-gnome-desktop
2016-01-23 04:25:02,107 DEBUG Foreign: 
2016-01-23 04:25:02,108 DEBUG Obsolete: maxthon-browser-stable mobilemediaconverter:i386 virtualbox-5.0
2016-01-23 04:25:02,109 DEBUG updateSourcesList()
2016-01-23 04:25:02,547 DEBUG rewriteSourcesList() with mirror_check
2016-01-23 04:25:02,547 DEBUG ['ubuntu-minimal', 'ubuntu-standard']
2016-01-23 04:25:02,548 DEBUG Checking pkg: ubuntu-minimal
2016-01-23 04:25:02,557 DEBUG Checking pkg: ubuntu-standard
2016-01-23 04:25:02,562 DEBUG examining: 'deb http://sa.archive.ubuntu.com/ubuntu/ trusty main restricted'
2016-01-23 04:25:02,563 DEBUG entry 'deb http://sa.archive.ubuntu.com/ubuntu/ xenial main restricted' updated to new dist
2016-01-23 04:25:02,563 DEBUG examining: 'deb-src http://sa.archive.ubuntu.com/ubuntu/ trusty main restricted'
2016-01-23 04:25:02,564 DEBUG entry 'deb-src http://sa.archive.ubuntu.com/ubuntu/ xenial main restricted' updated to new dist
2016-01-23 04:25:02,564 DEBUG examining: 'deb http://sa.archive.ubuntu.com/ubuntu/ trusty-updates main restricted'
2016-01-23 04:25:02,565 DEBUG entry 'deb http://sa.archive.ubuntu.com/ubuntu/ xenial-updates main restricted' updated to new dist
2016-01-23 04:25:02,565 DEBUG examining: 'deb-src http://sa.archive.ubuntu.com/ubuntu/ trusty-updates main restricted'
2016-01-23 04:25:02,565 DEBUG entry 'deb-src http://sa.archive.ubuntu.com/ubuntu/ xenial-updates main restricted' updated to new dist
2016-01-23 04:25:02,566 DEBUG examining: 'deb http://sa.archive.ubuntu.com/ubuntu/ trusty universe'
2016-01-23 04:25:02,566 DEBUG entry 'deb http://sa.archive.ubuntu.com/ubuntu/ xenial universe' updated to new dist
2016-01-23 04:25:02,566 DEBUG examining: 'deb-src http://sa.archive.ubuntu.com/ubuntu/ trusty universe'
2016-01-23 04:25:02,566 DEBUG entry 'deb-src http://sa.archive.ubuntu.com/ubuntu/ xenial universe' updated to new dist
2016-01-23 04:25:02,567 DEBUG examining: 'deb http://sa.archive.ubuntu.com/ubuntu/ trusty-updates universe'
2016-01-23 04:25:02,567 DEBUG entry 'deb http://sa.archive.ubuntu.com/ubuntu/ xenial-updates universe' updated to new dist
2016-01-23 04:25:02,567 DEBUG examining: 'deb-src http://sa.archive.ubuntu.com/ubuntu/ trusty-updates universe'
2016-01-23 04:25:02,568 DEBUG entry 'deb-src http://sa.archive.ubuntu.com/ubuntu/ xenial-updates universe' updated to new dist
2016-01-23 04:25:02,568 DEBUG examining: 'deb http://sa.archive.ubuntu.com/ubuntu/ trusty multiverse'
2016-01-23 04:25:02,569 DEBUG entry 'deb http://sa.archive.ubuntu.com/ubuntu/ xenial multiverse' updated to new dist
2016-01-23 04:25:02,569 DEBUG examining: 'deb-src http://sa.archive.ubuntu.com/ubuntu/ trusty multiverse'
2016-01-23 04:25:02,569 DEBUG entry 'deb-src http://sa.archive.ubuntu.com/ubuntu/ xenial multiverse' updated to new dist
2016-01-23 04:25:02,569 DEBUG examining: 'deb http://sa.archive.ubuntu.com/ubuntu/ trusty-updates multiverse'
2016-01-23 04:25:02,570 DEBUG entry 'deb http://sa.archive.ubuntu.com/ubuntu/ xenial-updates multiverse' updated to new dist
2016-01-23 04:25:02,570 DEBUG examining: 'deb-src http://sa.archive.ubuntu.com/ubuntu/ trusty-updates multiverse'
2016-01-23 04:25:02,570 DEBUG entry 'deb-src http://sa.archive.ubuntu.com/ubuntu/ xenial-updates multiverse' updated to new dist
2016-01-23 04:25:02,571 DEBUG examining: 'deb http://sa.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse'
2016-01-23 04:25:02,571 DEBUG entry 'deb http://sa.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse' updated to new dist
2016-01-23 04:25:02,571 DEBUG examining: 'deb-src http://sa.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse'
2016-01-23 04:25:02,572 DEBUG entry 'deb-src http://sa.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse' updated to new dist
2016-01-23 04:25:02,572 DEBUG examining: 'deb http://security.ubuntu.com/ubuntu trusty-security main restricted'
2016-01-23 04:25:02,572 DEBUG entry 'deb http://security.ubuntu.com/ubuntu xenial-security main restricted' updated to new dist
2016-01-23 04:25:02,573 DEBUG examining: 'deb-src http://security.ubuntu.com/ubuntu trusty-security main restricted'
2016-01-23 04:25:02,573 DEBUG entry 'deb-src http://security.ubuntu.com/ubuntu xenial-security main restricted' updated to new dist
2016-01-23 04:25:02,573 DEBUG examining: 'deb http://security.ubuntu.com/ubuntu trusty-security universe'
2016-01-23 04:25:02,574 DEBUG entry 'deb http://security.ubuntu.com/ubuntu xenial-security universe' updated to new dist
2016-01-23 04:25:02,574 DEBUG examining: 'deb-src http://security.ubuntu.com/ubuntu trusty-security universe'
2016-01-23 04:25:02,574 DEBUG entry 'deb-src http://security.ubuntu.com/ubuntu xenial-security universe' updated to new dist
2016-01-23 04:25:02,575 DEBUG examining: 'deb http://security.ubuntu.com/ubuntu trusty-security multiverse'
2016-01-23 04:25:02,575 DEBUG entry 'deb http://security.ubuntu.com/ubuntu xenial-security multiverse' updated to new dist
2016-01-23 04:25:02,575 DEBUG examining: 'deb-src http://security.ubuntu.com/ubuntu trusty-security multiverse'
2016-01-23 04:25:02,575 DEBUG entry 'deb-src http://security.ubuntu.com/ubuntu xenial-security multiverse' updated to new dist
2016-01-23 04:25:02,582 DEBUG running doUpdate() (showErrors=True)
2016-01-23 04:28:15,977 DEBUG openCache()
2016-01-23 04:28:15,977 DEBUG failed to SystemUnLock() (E:Not locked) 
2016-01-23 04:28:30,445 DEBUG /openCache(), new cache size 81644
2016-01-23 04:28:30,447 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-gnome-desktop')
2016-01-23 04:29:36,868 ERROR Dist-upgrade failed: 'E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.'
2016-01-23 04:29:36,896 DEBUG abort called
2016-01-23 04:29:36,919 DEBUG openCache()
2016-01-23 04:29:51,235 DEBUG /openCache(), new cache size 73502
2016-01-23 04:29:51,247 DEBUG enabling apt cron job