2020-11-11 14:54:19,290 INFO Using config files '['./DistUpgrade.cfg.bionic']'
2020-11-11 14:54:19,291 INFO uname information: 'Linux latitude 4.15.0-123-generic #126-Ubuntu SMP Wed Oct 21 09:40:11 UTC 2020 x86_64'
2020-11-11 14:54:19,888 INFO apt version: '1.6.12ubuntu0.1'
2020-11-11 14:54:19,888 INFO python version: '3.6.9 (default, Oct  8 2020, 12:12:24) 
[GCC 8.4.0]'
2020-11-11 14:54:19,893 INFO release-upgrader version '20.04.28' started
2020-11-11 14:54:19,956 INFO locale: 'en_US' 'UTF-8'
2020-11-11 14:54:20,186 DEBUG Using 'DistUpgradeViewGtk3' view
2020-11-11 14:54:20,230 DEBUG enable dpkg --force-overwrite
2020-11-11 14:54:20,245 DEBUG creating statefile: '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'
2020-11-11 14:54:24,141 DEBUG lsb-release: 'bionic'
2020-11-11 14:54:24,142 DEBUG _pythonSymlinkCheck run
2020-11-11 14:54:24,142 DEBUG openCache()
2020-11-11 14:54:24,143 DEBUG quirks: running PreCacheOpen
2020-11-11 14:54:24,143 DEBUG running Quirks.PreCacheOpen
2020-11-11 14:54:25,257 DEBUG Comparing 4.15.0-122 with 
2020-11-11 14:54:25,258 DEBUG Comparing 4.15.0-123 with 4.15.0-122
2020-11-11 14:54:25,554 DEBUG /openCache(), new cache size 100494
2020-11-11 14:54:25,555 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop')
2020-11-11 14:54:25,555 DEBUG checkViewDepends()
2020-11-11 14:54:25,558 DEBUG running doUpdate() (showErrors=False)
2020-11-11 14:54:28,464 DEBUG openCache()
2020-11-11 14:54:29,665 DEBUG Comparing 4.15.0-122 with 
2020-11-11 14:54:29,665 DEBUG Comparing 4.15.0-123 with 4.15.0-122
2020-11-11 14:54:29,923 DEBUG /openCache(), new cache size 100494
2020-11-11 14:54:29,923 DEBUG doPostInitialUpdate
2020-11-11 14:54:29,923 DEBUG quirks: running focalPostInitialUpdate
2020-11-11 14:54:29,923 DEBUG running Quirks.focalPostInitialUpdate
2020-11-11 14:54:32,343 DEBUG Snap core18 is installed
2020-11-11 14:54:32,575 DEBUG Snap gnome-3-34-1804 is installed
2020-11-11 14:54:32,576 DEBUG Snap gnome-3-34-1804 is not tracking the release channel
2020-11-11 14:54:32,876 DEBUG Snap gtk-common-themes is installed
2020-11-11 14:54:33,689 DEBUG Snap gnome-3-28-1804 is installed
2020-11-11 14:54:33,689 DEBUG Snap gnome-3-28-1804 is not tracking the release channel
2020-11-11 14:54:34,099 DEBUG Snap gnome-calculator is installed
2020-11-11 14:54:34,305 DEBUG Snap gnome-characters is installed
2020-11-11 14:54:34,548 DEBUG Snap gnome-logs is installed
2020-11-11 14:54:37,194 DEBUG MetaPkgs: ubuntu-desktop
2020-11-11 14:54:40,783 DEBUG Foreign: 
2020-11-11 14:54:40,783 DEBUG Obsolete: bluejeans-v2 brightness-controller chrome-remote-desktop com.github.nick92.coffee fluxgui globalprotect google-drive-ocamlfuse libegl-dev libgl-dev libgles-dev libglx-dev libopengl-dev libpython2-dev libpython2-stdlib master-pdf-editor mendeleydesktop nordvpn nordvpn-release openfoam6 paraviewopenfoam56 python2 python2-dev python2-minimal smplayer-skins spotify-client teams zoom
2020-11-11 14:54:40,784 DEBUG updateSourcesList()
2020-11-11 14:54:40,796 DEBUG rewriteSourcesList() with mirror_check
2020-11-11 14:54:40,796 DEBUG ['ubuntu-minimal', 'ubuntu-standard']
2020-11-11 14:54:40,796 DEBUG Checking pkg: ubuntu-minimal
2020-11-11 14:54:40,797 DEBUG Checking pkg: ubuntu-standard
2020-11-11 14:54:40,798 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic main restricted'
2020-11-11 14:54:40,798 DEBUG verifySourcesListEntry: deb http://archive.ubuntu.com/ubuntu focal main restricted
2020-11-11 14:54:40,798 DEBUG url_downloadable: http://archive.ubuntu.com/ubuntu/dists/focal/Release
2020-11-11 14:54:40,798 DEBUG s='http' n='archive.ubuntu.com' p='/ubuntu/dists/focal/Release' q='' f=''
2020-11-11 14:54:40,821 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal main restricted' updated to new dist
2020-11-11 14:54:40,821 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic-updates main restricted'
2020-11-11 14:54:40,821 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal-updates main restricted' updated to new dist
2020-11-11 14:54:40,821 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic universe'
2020-11-11 14:54:40,821 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal universe' updated to new dist
2020-11-11 14:54:40,821 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic-updates universe'
2020-11-11 14:54:40,821 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal-updates universe' updated to new dist
2020-11-11 14:54:40,821 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic multiverse'
2020-11-11 14:54:40,821 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal multiverse' updated to new dist
2020-11-11 14:54:40,821 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic-updates multiverse'
2020-11-11 14:54:40,822 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal-updates multiverse' updated to new dist
2020-11-11 14:54:40,822 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic-backports main restricted universe multiverse'
2020-11-11 14:54:40,822 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal-backports main restricted universe multiverse' updated to new dist
2020-11-11 14:54:40,822 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic-security main restricted'
2020-11-11 14:54:40,822 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal-security main restricted' updated to new dist
2020-11-11 14:54:40,822 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic-security universe'
2020-11-11 14:54:40,822 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal-security universe' updated to new dist
2020-11-11 14:54:40,822 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic-security multiverse'
2020-11-11 14:54:40,822 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal-security multiverse' updated to new dist
2020-11-11 14:54:40,824 DEBUG running doUpdate() (showErrors=True)
2020-11-11 14:54:53,106 DEBUG openCache()
2020-11-11 14:54:53,957 DEBUG Comparing 4.15.0-122 with 
2020-11-11 14:54:53,957 DEBUG Comparing 4.15.0-123 with 4.15.0-122
2020-11-11 14:54:54,124 DEBUG /openCache(), new cache size 66957
2020-11-11 14:54:54,124 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop')
2020-11-11 14:54:54,125 DEBUG quirks: running PreDistUpgradeCache
2020-11-11 14:54:54,125 DEBUG running Quirks.PreDistUpgradeCache
2020-11-11 14:54:54,125 INFO checking for python-dbg
2020-11-11 14:54:54,125 INFO checking for python-doc
2020-11-11 14:54:54,125 INFO checking for python-minimal
2020-11-11 14:54:54,125 INFO installing python-is-python2 because python-minimal was installed
2020-11-11 14:54:54,125 DEBUG Installing 'python-is-python2' (python-minimal was installed on the system)
2020-11-11 14:54:54,329 INFO removing python-minimal because python-is-python2 is being installed
2020-11-11 14:54:54,329 DEBUG Removing 'python-minimal' (python-is-python2 is being installed on the system)
2020-11-11 14:54:54,330 INFO failed to remove python-minimal
2020-11-11 14:54:54,330 INFO checking for python-dev
2020-11-11 14:54:54,330 INFO installing python-dev-is-python2 because python-dev was installed
2020-11-11 14:54:54,330 DEBUG Installing 'python-dev-is-python2' (python-dev was installed on the system)
2020-11-11 14:54:54,375 INFO removing python-dev because python-dev-is-python2 is being installed
2020-11-11 14:54:54,375 DEBUG Removing 'python-dev' (python-dev-is-python2 is being installed on the system)
2020-11-11 14:54:54,375 INFO failed to remove python-dev
2020-11-11 14:54:54,375 INFO checking for libpython-dev
2020-11-11 14:54:54,375 INFO removing libpython-dev because None is being installed
2020-11-11 14:54:54,375 DEBUG Removing 'libpython-dev' (None is being installed on the system)
2020-11-11 14:54:54,375 INFO failed to remove libpython-dev
2020-11-11 14:54:54,376 INFO checking for libpython-stdlib
2020-11-11 14:54:54,376 INFO removing libpython-stdlib because None is being installed
2020-11-11 14:54:54,376 DEBUG Removing 'libpython-stdlib' (None is being installed on the system)
2020-11-11 14:54:54,376 INFO failed to remove libpython-stdlib
2020-11-11 14:54:54,376 INFO checking for libpython-dbg
2020-11-11 14:54:55,832 DEBUG Installing 'xserver-xorg-video-all' (Distro KeepInstalledPkgs rule)
2020-11-11 15:04:07,823 ERROR Dist-upgrade failed: 'E:Unable to correct problems, you have held broken packages.'
2020-11-11 15:04:07,828 DEBUG abort called
2020-11-11 15:04:07,833 DEBUG openCache()
2020-11-11 15:04:10,855 DEBUG Comparing 4.15.0-122 with 
2020-11-11 15:04:10,856 DEBUG Comparing 4.15.0-123 with 4.15.0-122
2020-11-11 15:04:11,128 DEBUG /openCache(), new cache size 100494