2021-11-12 14:45:29,297 INFO Using config files '['./DistUpgrade.cfg', '/etc/update-manager/release-upgrades.d/ubuntu-advantage-upgrades.cfg']'
2021-11-12 14:45:29,297 INFO uname information: 'Linux hamid-HP-HYGHAG 5.11.0-36-generic #40-Ubuntu SMP Fri Sep 17 18:15:22 UTC 2021 x86_64'
2021-11-12 14:45:29,614 INFO apt version: '2.2.4ubuntu0.1'
2021-11-12 14:45:29,614 INFO python version: '3.9.5 (default, May 11 2021, 08:20:37) 
[GCC 10.3.0]'
2021-11-12 14:45:29,616 INFO release-upgrader version '21.10.8' started
2021-11-12 14:45:29,673 INFO locale: 'en_US' 'UTF-8'
2021-11-12 14:45:29,908 DEBUG Using 'DistUpgradeViewGtk3' view
2021-11-12 14:45:29,962 DEBUG enable dpkg --force-overwrite
2021-11-12 14:45:29,994 DEBUG creating statefile: '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'
2021-11-12 14:45:31,920 DEBUG lsb-release: 'hirsute'
2021-11-12 14:45:31,921 DEBUG _pythonSymlinkCheck run
2021-11-12 14:45:31,922 DEBUG openCache()
2021-11-12 14:45:31,922 DEBUG quirks: running PreCacheOpen
2021-11-12 14:45:31,922 DEBUG running Quirks.PreCacheOpen
2021-11-12 14:45:32,476 DEBUG Comparing 5.11.0-25 with 
2021-11-12 14:45:32,476 DEBUG Comparing 5.11.0-36 with 5.11.0-25
2021-11-12 14:45:32,548 DEBUG /openCache(), new cache size 70071
2021-11-12 14:45:32,548 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop')
2021-11-12 14:45:32,548 DEBUG checkViewDepends()
2021-11-12 14:45:32,549 DEBUG running doUpdate() (showErrors=False)
2021-11-12 14:45:37,359 ERROR IOError/SystemError in cache.update(): ''. Retrying (currentRetry: 0)
2021-11-12 14:45:37,359 ERROR doUpdate() failed completely
2021-11-12 14:45:37,359 DEBUG openCache()
2021-11-12 14:45:37,952 DEBUG Comparing 5.11.0-25 with 
2021-11-12 14:45:37,953 DEBUG Comparing 5.11.0-36 with 5.11.0-25
2021-11-12 14:45:38,037 DEBUG /openCache(), new cache size 70079
2021-11-12 14:45:38,037 DEBUG doPostInitialUpdate
2021-11-12 14:45:38,037 DEBUG quirks: running impishPostInitialUpdate
2021-11-12 14:45:38,037 DEBUG running Quirks.impishPostInitialUpdate
2021-11-12 14:45:40,187 DEBUG Deb package gnome-software is not installed. Skipping snap package snap-store installation
2021-11-12 14:45:43,048 DEBUG MetaPkgs: ubuntu-desktop
2021-11-12 14:45:44,509 DEBUG Foreign: aspnetcore-runtime-5.0 aspnetcore-targeting-pack-5.0 dotnet-apphost-pack-5.0 dotnet-host dotnet-hostfxr-5.0 dotnet-runtime-5.0 dotnet-runtime-deps-5.0 dotnet-sdk-5.0 dotnet-targeting-pack-5.0 google-chrome-stable libodbc1 netstandard-targeting-pack-2.1 nordvpn-release odbcinst odbcinst1debian2 packages-microsoft-prod
2021-11-12 14:45:44,509 DEBUG Obsolete: 
2021-11-12 14:45:44,510 DEBUG updateSourcesList()
2021-11-12 14:45:44,517 DEBUG rewriteSourcesList() with mirror_check
2021-11-12 14:45:44,517 DEBUG ['ubuntu-minimal', 'ubuntu-standard']
2021-11-12 14:45:44,517 DEBUG Checking pkg: ubuntu-minimal
2021-11-12 14:45:44,518 DEBUG Checking pkg: ubuntu-standard
2021-11-12 14:45:44,519 DEBUG examining: 'deb https://mirror.os6.org/ubuntu/ hirsute main restricted'
2021-11-12 14:45:44,520 DEBUG verifySourcesListEntry: deb https://mirror.os6.org/ubuntu/ impish main restricted
2021-11-12 14:45:44,520 DEBUG url_downloadable: https://mirror.os6.org/ubuntu//dists/impish/Release
2021-11-12 14:45:44,520 DEBUG s='https' n='mirror.os6.org' p='/ubuntu//dists/impish/Release' q='' f=''
2021-11-12 14:45:44,666 DEBUG error from httplib: '<urlopen error [Errno -2] Name or service not known>'
2021-11-12 14:45:44,666 DEBUG entry '# deb https://mirror.os6.org/ubuntu/ hirsute main restricted' was disabled (no Release file)
2021-11-12 14:45:44,666 DEBUG examining: 'deb https://mirror.os6.org/ubuntu/ hirsute-updates main restricted'
2021-11-12 14:45:44,667 DEBUG entry '# deb https://mirror.os6.org/ubuntu/ hirsute-updates main restricted' was disabled (no Release file)
2021-11-12 14:45:44,667 DEBUG examining: 'deb https://mirror.os6.org/ubuntu/ hirsute universe'
2021-11-12 14:45:44,668 DEBUG entry '# deb https://mirror.os6.org/ubuntu/ hirsute universe' was disabled (no Release file)
2021-11-12 14:45:44,668 DEBUG examining: 'deb https://mirror.os6.org/ubuntu/ hirsute-updates universe'
2021-11-12 14:45:44,669 DEBUG entry '# deb https://mirror.os6.org/ubuntu/ hirsute-updates universe' was disabled (no Release file)
2021-11-12 14:45:44,669 DEBUG examining: 'deb https://mirror.os6.org/ubuntu/ hirsute multiverse'
2021-11-12 14:45:44,670 DEBUG entry '# deb https://mirror.os6.org/ubuntu/ hirsute multiverse' was disabled (no Release file)
2021-11-12 14:45:44,670 DEBUG examining: 'deb https://mirror.os6.org/ubuntu/ hirsute-updates multiverse'
2021-11-12 14:45:44,672 DEBUG entry '# deb https://mirror.os6.org/ubuntu/ hirsute-updates multiverse' was disabled (no Release file)
2021-11-12 14:45:44,672 DEBUG examining: 'deb https://mirror.os6.org/ubuntu/ hirsute-security main restricted'
2021-11-12 14:45:44,674 DEBUG entry '# deb https://mirror.os6.org/ubuntu/ hirsute-security main restricted' was disabled (no Release file)
2021-11-12 14:45:44,674 DEBUG examining: 'deb https://mirror.os6.org/ubuntu/ hirsute-security universe'
2021-11-12 14:45:44,676 DEBUG entry '# deb https://mirror.os6.org/ubuntu/ hirsute-security universe' was disabled (no Release file)
2021-11-12 14:45:44,676 DEBUG examining: 'deb https://mirror.os6.org/ubuntu/ hirsute-security multiverse'
2021-11-12 14:45:44,678 DEBUG entry '# deb https://mirror.os6.org/ubuntu/ hirsute-security multiverse' was disabled (no Release file)
2021-11-12 14:45:44,678 DEBUG examining: 'deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main'
2021-11-12 14:45:44,680 DEBUG entry '# deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main # disabled on upgrade to impish' was disabled (unknown mirror)
2021-11-12 14:45:44,680 DEBUG examining: 'deb [arch=amd64,arm64,armhf] https://packages.microsoft.com/ubuntu/20.10/prod groovy main'
2021-11-12 14:45:44,682 DEBUG entry '# deb [arch=amd64,arm64,armhf] https://packages.microsoft.com/ubuntu/20.10/prod groovy main # disabled on upgrade to impish' was disabled (unknown mirror)
2021-11-12 14:45:44,682 DEBUG examining: 'deb https://repo.nordvpn.com/deb/nordvpn/debian stable main'
2021-11-12 14:45:44,684 DEBUG entry '# deb https://repo.nordvpn.com/deb/nordvpn/debian stable main # disabled on upgrade to impish' was disabled (unknown mirror)
2021-11-12 14:45:58,927 DEBUG running doUpdate() (showErrors=True)
2021-11-12 14:45:58,930 DEBUG openCache()
2021-11-12 14:45:59,032 DEBUG Comparing 5.11.0-25 with 
2021-11-12 14:45:59,032 DEBUG Comparing 5.11.0-36 with 5.11.0-25
2021-11-12 14:45:59,053 DEBUG /openCache(), new cache size 2076
2021-11-12 14:45:59,053 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop')
2021-11-12 14:45:59,054 ERROR No 'ubuntu-minimal' available/downloadable after sources.list rewrite+update
2021-11-12 14:45:59,054 ERROR 'ubuntu-minimal' was not downloadable
2021-11-12 14:47:13,654 DEBUG abort called
2021-11-12 14:47:13,656 DEBUG openCache()
2021-11-12 14:47:15,269 DEBUG Comparing 5.11.0-25 with 
2021-11-12 14:47:15,270 DEBUG Comparing 5.11.0-36 with 5.11.0-25
2021-11-12 14:47:15,342 DEBUG /openCache(), new cache size 70079