2021-04-04 16:35:58,147 INFO Using config files '['./DistUpgrade.cfg.bionic']'
2021-04-04 16:35:58,147 INFO uname information: 'Linux IBS-LAP-084 4.15.0-140-generic #144-Ubuntu SMP Fri Mar 19 14:12:35 UTC 2021 x86_64'
2021-04-04 16:35:58,648 INFO apt version: '1.6.12ubuntu0.2'
2021-04-04 16:35:58,648 INFO python version: '3.6.9 (default, Jan 26 2021, 15:33:00) 
[GCC 8.4.0]'
2021-04-04 16:35:58,654 INFO release-upgrader version '20.04.29' started
2021-04-04 16:35:58,724 INFO locale: 'en_IN' 'ISO8859-1'
2021-04-04 16:35:58,891 DEBUG Using 'DistUpgradeViewGtk3' view
2021-04-04 16:35:58,941 DEBUG enable dpkg --force-overwrite
2021-04-04 16:35:58,961 DEBUG creating statefile: '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'
2021-04-04 16:36:01,957 DEBUG lsb-release: 'bionic'
2021-04-04 16:36:01,958 DEBUG _pythonSymlinkCheck run
2021-04-04 16:36:01,958 DEBUG openCache()
2021-04-04 16:36:01,958 DEBUG quirks: running PreCacheOpen
2021-04-04 16:36:01,958 DEBUG running Quirks.PreCacheOpen
2021-04-04 16:36:03,014 DEBUG Comparing 4.15.0-136 with 
2021-04-04 16:36:03,014 DEBUG Comparing 4.15.0-140 with 4.15.0-136
2021-04-04 16:36:03,230 DEBUG /openCache(), new cache size 102668
2021-04-04 16:36:03,231 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop')
2021-04-04 16:36:03,231 DEBUG checkViewDepends()
2021-04-04 16:36:03,232 DEBUG running doUpdate() (showErrors=False)
2021-04-04 16:36:06,794 DEBUG openCache()
2021-04-04 16:36:07,868 DEBUG Comparing 4.15.0-136 with 
2021-04-04 16:36:07,868 DEBUG Comparing 4.15.0-140 with 4.15.0-136
2021-04-04 16:36:08,099 DEBUG /openCache(), new cache size 102668
2021-04-04 16:36:08,099 DEBUG doPostInitialUpdate
2021-04-04 16:36:08,099 DEBUG quirks: running focalPostInitialUpdate
2021-04-04 16:36:08,099 DEBUG running Quirks.focalPostInitialUpdate
2021-04-04 16:36:12,011 DEBUG Snap core18 is installed
2021-04-04 16:36:12,313 DEBUG Snap gnome-3-34-1804 is installed
2021-04-04 16:36:12,315 DEBUG Snap gnome-3-34-1804 is not tracking the release channel
2021-04-04 16:36:13,150 DEBUG Snap gtk-common-themes is installed
2021-04-04 16:36:13,151 DEBUG Snap gtk-common-themes is not tracking the release channel
2021-04-04 16:36:14,737 DEBUG Snap gnome-3-28-1804 is installed
2021-04-04 16:36:14,738 DEBUG Snap gnome-3-28-1804 is not tracking the release channel
2021-04-04 16:36:15,046 DEBUG Snap gnome-calculator is installed
2021-04-04 16:36:15,403 DEBUG Snap gnome-characters is installed
2021-04-04 16:36:15,740 DEBUG Snap gnome-logs is installed
2021-04-04 16:36:18,480 DEBUG MetaPkgs: ubuntu-desktop
2021-04-04 16:36:20,937 DEBUG Foreign: 
2021-04-04 16:36:20,937 DEBUG Obsolete: anydesk centrifydc centrifydc-curl centrifydc-openldap centrifydc-openssl charles-proxy code google-chrome-stable jd-gui libpython2-stdlib mqttfx notepadqq notepadqq-common notepadqq-gtk python2 python2-minimal ringcentral skypeforlinux slack-desktop sublime-text teamviewer:i386 zoom
2021-04-04 16:36:20,938 DEBUG updateSourcesList()
2021-04-04 16:36:20,981 DEBUG rewriteSourcesList() with mirror_check
2021-04-04 16:36:20,982 DEBUG ['ubuntu-minimal', 'ubuntu-standard']
2021-04-04 16:36:20,982 DEBUG Checking pkg: ubuntu-minimal
2021-04-04 16:36:20,985 DEBUG Checking pkg: ubuntu-standard
2021-04-04 16:36:20,988 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic main restricted'
2021-04-04 16:36:20,988 DEBUG verifySourcesListEntry: deb http://archive.ubuntu.com/ubuntu focal main restricted
2021-04-04 16:36:20,988 DEBUG url_downloadable: http://archive.ubuntu.com/ubuntu/dists/focal/Release
2021-04-04 16:36:20,989 DEBUG s='http' n='archive.ubuntu.com' p='/ubuntu/dists/focal/Release' q='' f=''
2021-04-04 16:36:21,487 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal main restricted' updated to new dist
2021-04-04 16:36:21,487 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic-updates main restricted'
2021-04-04 16:36:21,487 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal-updates main restricted' updated to new dist
2021-04-04 16:36:21,488 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic universe'
2021-04-04 16:36:21,488 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal universe' updated to new dist
2021-04-04 16:36:21,488 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic-updates universe'
2021-04-04 16:36:21,488 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal-updates universe' updated to new dist
2021-04-04 16:36:21,489 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic multiverse'
2021-04-04 16:36:21,489 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal multiverse' updated to new dist
2021-04-04 16:36:21,489 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic-updates multiverse'
2021-04-04 16:36:21,489 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal-updates multiverse' updated to new dist
2021-04-04 16:36:21,489 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic-backports main restricted universe multiverse'
2021-04-04 16:36:21,490 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal-backports main restricted universe multiverse' updated to new dist
2021-04-04 16:36:21,490 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic-security main restricted'
2021-04-04 16:36:21,490 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal-security main restricted' updated to new dist
2021-04-04 16:36:21,490 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic-security universe'
2021-04-04 16:36:21,490 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal-security universe' updated to new dist
2021-04-04 16:36:21,490 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu bionic-security multiverse'
2021-04-04 16:36:21,490 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal-security multiverse' updated to new dist
2021-04-04 16:36:21,493 DEBUG running doUpdate() (showErrors=True)
2021-04-04 16:37:12,260 DEBUG openCache()
2021-04-04 16:37:13,012 DEBUG Comparing 4.15.0-136 with 
2021-04-04 16:37:13,012 DEBUG Comparing 4.15.0-140 with 4.15.0-136
2021-04-04 16:37:13,163 DEBUG /openCache(), new cache size 68246
2021-04-04 16:37:13,163 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop')
2021-04-04 16:37:13,164 DEBUG quirks: running PreDistUpgradeCache
2021-04-04 16:37:13,164 DEBUG running Quirks.PreDistUpgradeCache
2021-04-04 16:37:13,164 INFO checking for python-dbg
2021-04-04 16:37:13,164 INFO checking for python-doc
2021-04-04 16:37:13,164 INFO checking for python-minimal
2021-04-04 16:37:13,164 INFO installing python-is-python2 because python-minimal was installed
2021-04-04 16:37:13,164 DEBUG Installing 'python-is-python2' (python-minimal was installed on the system)
2021-04-04 16:37:13,193 INFO removing python-minimal because python-is-python2 is being installed
2021-04-04 16:37:13,193 DEBUG Removing 'python-minimal' (python-is-python2 is being installed on the system)
2021-04-04 16:37:13,220 INFO failed to remove python-minimal
2021-04-04 16:37:13,221 INFO checking for python-dev
2021-04-04 16:37:13,221 INFO checking for libpython-dev
2021-04-04 16:37:13,221 INFO checking for libpython-stdlib
2021-04-04 16:37:13,221 INFO removing libpython-stdlib because None is being installed
2021-04-04 16:37:13,221 DEBUG Removing 'libpython-stdlib' (None is being installed on the system)
2021-04-04 16:37:13,248 INFO failed to remove libpython-stdlib
2021-04-04 16:37:13,248 INFO checking for libpython-dbg
2021-04-04 16:37:14,628 DEBUG Installing 'xserver-xorg-video-all' (Distro KeepInstalledPkgs rule)