2016-08-24 11:40:05,225 INFO Using config files '['./DistUpgrade.cfg.trusty']' 2016-08-24 11:40:05,225 INFO uname information: 'Linux sumit-HP-ProBook-440-G2 3.19.0-61-generic #69~14.04.1-Ubuntu SMP Thu Jun 9 09:09:13 UTC 2016 x86_64' 2016-08-24 11:40:05,726 INFO apt version: '1.0.1ubuntu2.14' 2016-08-24 11:40:05,727 INFO python version: '3.4.3 (default, Oct 14 2015, 20:28:29) [GCC 4.8.4]' 2016-08-24 11:40:05,729 INFO release-upgrader version '16.04.16' started 2016-08-24 11:40:05,859 INFO locale: 'en_IN' 'ISO8859-1' 2016-08-24 11:40:07,177 DEBUG Using 'DistUpgradeViewGtk3' view 2016-08-24 11:40:07,230 DEBUG aufsOptionsAndEnvironmentSetup() 2016-08-24 11:40:07,231 DEBUG using '/tmp/upgrade-rw-1jpgh7g0' as aufs_rw_dir 2016-08-24 11:40:07,231 DEBUG using '/tmp/upgrade-chroot-y4vlsji9' as aufs chroot dir 2016-08-24 11:40:07,231 DEBUG enable dpkg --force-overwrite 2016-08-24 11:40:07,271 DEBUG creating statefile: '/var/log/dist-upgrade/apt-clone_system_state.tar.gz' 2016-08-24 11:40:15,653 DEBUG lsb-release: 'trusty' 2016-08-24 11:40:15,653 DEBUG _pythonSymlinkCheck run 2016-08-24 11:40:15,697 DEBUG openCache() 2016-08-24 11:40:15,697 DEBUG No such plugin directory: ./plugins 2016-08-24 11:40:15,697 DEBUG plugins for condition 'PreCacheOpen' are '[]' 2016-08-24 11:40:15,698 DEBUG plugins for condition 'xenialPreCacheOpen' are '[]' 2016-08-24 11:40:15,698 DEBUG plugins for condition 'from_trustyPreCacheOpen' are '[]' 2016-08-24 11:40:15,698 DEBUG quirks: running PreCacheOpen 2016-08-24 11:40:15,698 DEBUG running Quirks.PreCacheOpen 2016-08-24 11:40:16,704 DEBUG /openCache(), new cache size 76495 2016-08-24 11:40:16,704 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop') 2016-08-24 11:40:16,705 DEBUG checkViewDepends() 2016-08-24 11:40:16,705 DEBUG depends: 'apt (>= 1.0.1ubuntu2.13)' 2016-08-24 11:40:16,705 DEBUG checking: '[('apt', '1.0.1ubuntu2.13', '>=')]' 2016-08-24 11:40:16,705 DEBUG depends: 'dpkg (>= 1.17.5ubuntu5.6)' 2016-08-24 11:40:16,705 DEBUG checking: '[('dpkg', '1.17.5ubuntu5.6', '>=')]' 2016-08-24 11:40:17,038 DEBUG running doUpdate() (showErrors=False) 2016-08-24 11:43:09,620 DEBUG openCache() 2016-08-24 11:43:15,189 DEBUG /openCache(), new cache size 76495 2016-08-24 11:43:15,189 DEBUG doPostInitialUpdate 2016-08-24 11:43:15,189 DEBUG plugins for condition 'PostInitialUpdate' are '[]' 2016-08-24 11:43:15,189 DEBUG plugins for condition 'xenialPostInitialUpdate' are '[]' 2016-08-24 11:43:15,189 DEBUG plugins for condition 'from_trustyPostInitialUpdate' are '[]' 2016-08-24 11:43:17,749 DEBUG MetaPkgs: ubuntu-desktop 2016-08-24 11:43:23,657 DEBUG Foreign: atom audacious audacious-plugins audacious-plugins-data brackets byobu clementine docker-engine easytag erlang erlang-appmon erlang-asn1 erlang-base erlang-common-test erlang-corba erlang-crypto erlang-debugger erlang-dev erlang-dialyzer erlang-diameter erlang-edoc erlang-eldap erlang-erl-docgen erlang-et erlang-eunit erlang-examples erlang-gs erlang-ic erlang-inets erlang-inviso erlang-megaco erlang-mnesia erlang-mode erlang-nox erlang-observer erlang-odbc erlang-os-mon erlang-parsetools erlang-percept erlang-pman erlang-public-key erlang-reltool erlang-runtime-tools erlang-snmp erlang-src erlang-ssh erlang-ssl erlang-syntax-tools erlang-test-server erlang-toolbar erlang-tools erlang-tv erlang-typer erlang-webtool erlang-wx erlang-xmerl ffmpeg gir1.2-rb-3.0 gir1.2-totem-1.0 gir1.2-totem-plparser-1.0 google-chrome-stable grilo-plugins-0.2 grive gstreamer1.0-libde265 haproxy hollywood i965-va-driver indicator-synapse lame libaacs0 libass5 libaudcore3 libaudgui3 libaudqt0 libaudtag2 libav-tools libavcodec-extra libavcodec-extra-54 libavdevice53 libavfilter3 libavformat54 libavresample1 libavutil52 libbluray1 libde265 libdvdnav4 libdvdread4 libfdk-aac0 libgranite-common libgranite1 libguess1 liblcms2-2 liblcms2-2:i386 libmosquitto1 libmp3lame0 libmpcdec6 libopus0 libpq5 librhythmbox-core8 librtmp-dev librtmp1 libruby1.9.1 libshine3 libswscale2 libtag1-vanilla libtag1c2a libtagc0 libtotem-plparser18 libtotem0 libva-drm1 libva-x11-1 libva1 libvidstab1.0 libvlc5 libvlccore8 libvorbis0a libvorbis0a:i386 libvorbisenc2 libvorbisenc2:i386 libvorbisfile3 libvpx1 libvpx1:i386 libx264-142 libx264-148 libx265-59 libx265-79 mbuntu-y-icons-v4 mbuntu-y-ithemes-v4 moc moka-gnome-shell-theme mosquitto mosquitto-clients mplayer nginx nodejs numix-icon-theme numix-icon-theme-circle pgdg-keyring playonlinux postgresql-9.4 postgresql-client-9.4 postgresql-client-common postgresql-common postgresql-contrib-9.4 python-mosquitto python3-mosquitto r-base r-base-core r-base-dev r-base-html r-cran-boot r-cran-class r-cran-cluster r-cran-codetools r-cran-foreign r-cran-kernsmooth r-cran-lattice r-cran-mass r-cran-matrix r-cran-mgcv r-cran-nlme r-cran-nnet r-cran-rpart r-cran-spatial r-cran-survival r-doc-html r-recommended rhythmbox rhythmbox-data rhythmbox-mozilla rhythmbox-plugin-cdrecorder rhythmbox-plugin-magnatune rhythmbox-plugin-zeitgeist rhythmbox-plugins rtmpdump ruby1.9.1 slingscold sublime-text-installer tmux totem totem-common totem-mozilla totem-plugins va-driver-all virtualbox-5.0 vlc vlc-data vlc-nox vlc-plugin-libde265 vlc-plugin-notify vlc-plugin-pulse vlc-plugin-samba youtube-dl 2016-08-24 11:43:23,658 DEBUG Obsolete: couchbase-server elasticsearch erlang-solutions master-pdf-editor3 mysql-connector-python mysql-connector-python-py3 mysql-workbench-community openfire openoffice openoffice-base openoffice-brand-base openoffice-brand-calc openoffice-brand-draw openoffice-brand-en-us openoffice-brand-impress openoffice-brand-math openoffice-brand-writer openoffice-calc openoffice-core01 openoffice-core02 openoffice-core03 openoffice-core04 openoffice-core05 openoffice-core06 openoffice-core07 openoffice-draw openoffice-en-us openoffice-en-us-base openoffice-en-us-calc openoffice-en-us-draw openoffice-en-us-help openoffice-en-us-impress openoffice-en-us-math openoffice-en-us-res openoffice-en-us-writer openoffice-gnome-integration openoffice-graphicfilter openoffice-images openoffice-impress openoffice-javafilter openoffice-math openoffice-ogltrans openoffice-onlineupdate openoffice-ooofonts openoffice-ooolinguistic openoffice-pyuno openoffice-ure openoffice-writer openoffice-xsltfilter 2016-08-24 11:43:23,658 DEBUG updateSourcesList() 2016-08-24 11:43:23,945 DEBUG rewriteSourcesList() with mirror_check 2016-08-24 11:43:23,945 DEBUG ['ubuntu-minimal', 'ubuntu-standard'] 2016-08-24 11:43:23,945 DEBUG Checking pkg: ubuntu-minimal 2016-08-24 11:43:23,948 DEBUG Checking pkg: ubuntu-standard 2016-08-24 11:43:23,950 DEBUG examining: 'deb http://in.archive.ubuntu.com/ubuntu/ trusty main restricted' 2016-08-24 11:43:23,950 DEBUG entry 'deb http://in.archive.ubuntu.com/ubuntu/ xenial main restricted' updated to new dist 2016-08-24 11:43:23,950 DEBUG examining: 'deb-src http://in.archive.ubuntu.com/ubuntu/ trusty main restricted' 2016-08-24 11:43:23,950 DEBUG entry 'deb-src http://in.archive.ubuntu.com/ubuntu/ xenial main restricted' updated to new dist 2016-08-24 11:43:23,951 DEBUG examining: 'deb http://in.archive.ubuntu.com/ubuntu/ trusty-updates main restricted' 2016-08-24 11:43:23,951 DEBUG entry 'deb http://in.archive.ubuntu.com/ubuntu/ xenial-updates main restricted' updated to new dist 2016-08-24 11:43:23,951 DEBUG examining: 'deb-src http://in.archive.ubuntu.com/ubuntu/ trusty-updates main restricted' 2016-08-24 11:43:23,951 DEBUG entry 'deb-src http://in.archive.ubuntu.com/ubuntu/ xenial-updates main restricted' updated to new dist 2016-08-24 11:43:23,951 DEBUG examining: 'deb http://in.archive.ubuntu.com/ubuntu/ trusty universe' 2016-08-24 11:43:23,951 DEBUG entry 'deb http://in.archive.ubuntu.com/ubuntu/ xenial universe' updated to new dist 2016-08-24 11:43:23,951 DEBUG examining: 'deb-src http://in.archive.ubuntu.com/ubuntu/ trusty universe' 2016-08-24 11:43:23,951 DEBUG entry 'deb-src http://in.archive.ubuntu.com/ubuntu/ xenial universe' updated to new dist 2016-08-24 11:43:23,951 DEBUG examining: 'deb http://in.archive.ubuntu.com/ubuntu/ trusty-updates universe' 2016-08-24 11:43:23,951 DEBUG entry 'deb http://in.archive.ubuntu.com/ubuntu/ xenial-updates universe' updated to new dist 2016-08-24 11:43:23,951 DEBUG examining: 'deb-src http://in.archive.ubuntu.com/ubuntu/ trusty-updates universe' 2016-08-24 11:43:23,951 DEBUG entry 'deb-src http://in.archive.ubuntu.com/ubuntu/ xenial-updates universe' updated to new dist 2016-08-24 11:43:23,951 DEBUG examining: 'deb http://in.archive.ubuntu.com/ubuntu/ trusty multiverse' 2016-08-24 11:43:23,951 DEBUG entry 'deb http://in.archive.ubuntu.com/ubuntu/ xenial multiverse' updated to new dist 2016-08-24 11:43:23,952 DEBUG examining: 'deb-src http://in.archive.ubuntu.com/ubuntu/ trusty multiverse' 2016-08-24 11:43:23,952 DEBUG entry 'deb-src http://in.archive.ubuntu.com/ubuntu/ xenial multiverse' updated to new dist 2016-08-24 11:43:23,952 DEBUG examining: 'deb http://in.archive.ubuntu.com/ubuntu/ trusty-updates multiverse' 2016-08-24 11:43:23,952 DEBUG entry 'deb http://in.archive.ubuntu.com/ubuntu/ xenial-updates multiverse' updated to new dist 2016-08-24 11:43:23,952 DEBUG examining: 'deb-src http://in.archive.ubuntu.com/ubuntu/ trusty-updates multiverse' 2016-08-24 11:43:23,952 DEBUG entry 'deb-src http://in.archive.ubuntu.com/ubuntu/ xenial-updates multiverse' updated to new dist 2016-08-24 11:43:23,952 DEBUG examining: 'deb http://in.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse' 2016-08-24 11:43:23,952 DEBUG entry 'deb http://in.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse' updated to new dist 2016-08-24 11:43:23,952 DEBUG examining: 'deb-src http://in.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse' 2016-08-24 11:43:23,952 DEBUG entry 'deb-src http://in.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse' updated to new dist 2016-08-24 11:43:23,952 DEBUG examining: 'deb http://security.ubuntu.com/ubuntu trusty-security main restricted' 2016-08-24 11:43:23,952 DEBUG entry 'deb http://security.ubuntu.com/ubuntu xenial-security main restricted' updated to new dist 2016-08-24 11:43:23,952 DEBUG examining: 'deb-src http://security.ubuntu.com/ubuntu trusty-security main restricted' 2016-08-24 11:43:23,952 DEBUG entry 'deb-src http://security.ubuntu.com/ubuntu xenial-security main restricted' updated to new dist 2016-08-24 11:43:23,953 DEBUG examining: 'deb http://security.ubuntu.com/ubuntu trusty-security universe' 2016-08-24 11:43:23,953 DEBUG entry 'deb http://security.ubuntu.com/ubuntu xenial-security universe' updated to new dist 2016-08-24 11:43:23,953 DEBUG examining: 'deb-src http://security.ubuntu.com/ubuntu trusty-security universe' 2016-08-24 11:43:23,953 DEBUG entry 'deb-src http://security.ubuntu.com/ubuntu xenial-security universe' updated to new dist 2016-08-24 11:43:23,953 DEBUG examining: 'deb http://security.ubuntu.com/ubuntu trusty-security multiverse' 2016-08-24 11:43:23,953 DEBUG entry 'deb http://security.ubuntu.com/ubuntu xenial-security multiverse' updated to new dist 2016-08-24 11:43:23,953 DEBUG examining: 'deb-src http://security.ubuntu.com/ubuntu trusty-security multiverse' 2016-08-24 11:43:23,953 DEBUG entry 'deb-src http://security.ubuntu.com/ubuntu xenial-security multiverse' updated to new dist 2016-08-24 11:43:23,954 DEBUG examining: 'deb http://archive.canonical.com/ubuntu trusty partner' 2016-08-24 11:43:23,954 DEBUG entry 'deb http://archive.canonical.com/ubuntu xenial partner' updated to new dist 2016-08-24 11:43:23,954 DEBUG examining: 'deb http://ppa.launchpad.net/vbernat/haproxy-1.5/ubuntu trusty main' 2016-08-24 11:43:23,956 DEBUG entry '# deb http://ppa.launchpad.net/vbernat/haproxy-1.5/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,956 DEBUG examining: 'deb http://ppa.launchpad.net/brightbox/ruby-ng/ubuntu trusty main' 2016-08-24 11:43:23,958 DEBUG entry '# deb http://ppa.launchpad.net/brightbox/ruby-ng/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,958 DEBUG examining: 'deb http://nginx.org/packages/ubuntu/ trusty nginx' 2016-08-24 11:43:23,960 DEBUG entry '# deb http://nginx.org/packages/ubuntu/ xenial nginx # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,960 DEBUG examining: 'deb-src http://nginx.org/packages/ubuntu/ trusty nginx' 2016-08-24 11:43:23,962 DEBUG entry '# deb-src http://nginx.org/packages/ubuntu/ xenial nginx # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,962 DEBUG examining: 'deb http://ppa.launchpad.net/webupd8team/sublime-text-3/ubuntu trusty main' 2016-08-24 11:43:23,964 DEBUG entry '# deb http://ppa.launchpad.net/webupd8team/sublime-text-3/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,964 DEBUG examining: 'deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main' 2016-08-24 11:43:23,966 DEBUG entry '# deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,967 DEBUG examining: 'deb http://cran.rstudio.com/bin/linux/ubuntu trusty/' 2016-08-24 11:43:23,968 DEBUG entry '# deb http://cran.rstudio.com/bin/linux/ubuntu trusty/ # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,969 DEBUG examining: 'deb http://ppa.launchpad.net/noobslab/themes/ubuntu trusty main' 2016-08-24 11:43:23,970 DEBUG entry '# deb http://ppa.launchpad.net/noobslab/themes/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,970 DEBUG examining: 'deb https://apt.dockerproject.org/repo ubuntu-trusty main' 2016-08-24 11:43:23,972 DEBUG entry '# deb https://apt.dockerproject.org/repo ubuntu-trusty main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,973 DEBUG examining: 'deb http://ppa.launchpad.net/webupd8team/atom/ubuntu trusty main' 2016-08-24 11:43:23,974 DEBUG entry '# deb http://ppa.launchpad.net/webupd8team/atom/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,975 DEBUG examining: 'deb http://apt.postgresql.org/pub/repos/apt/ trusty-pgdg main' 2016-08-24 11:43:23,977 DEBUG entry '# deb http://apt.postgresql.org/pub/repos/apt/ trusty-pgdg main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,977 DEBUG examining: 'deb http://ppa.launchpad.net/byobu/ppa/ubuntu trusty main' 2016-08-24 11:43:23,979 DEBUG entry '# deb http://ppa.launchpad.net/byobu/ppa/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,980 DEBUG examining: 'deb http://ppa.launchpad.net/webupd8team/brackets/ubuntu trusty main' 2016-08-24 11:43:23,982 DEBUG entry '# deb http://ppa.launchpad.net/webupd8team/brackets/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,982 DEBUG examining: 'deb http://ppa.launchpad.net/moka/stable/ubuntu trusty main' 2016-08-24 11:43:23,984 DEBUG entry '# deb http://ppa.launchpad.net/moka/stable/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,985 DEBUG examining: 'deb http://ppa.launchpad.net/me-davidsansome/clementine/ubuntu trusty main' 2016-08-24 11:43:23,987 DEBUG entry '# deb http://ppa.launchpad.net/me-davidsansome/clementine/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,987 DEBUG examining: 'deb http://ppa.launchpad.net/mc3man/trusty-media/ubuntu trusty main' 2016-08-24 11:43:23,989 DEBUG entry '# deb http://ppa.launchpad.net/mc3man/trusty-media/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,989 DEBUG examining: 'deb http://ppa.launchpad.net/numix/ppa/ubuntu trusty main' 2016-08-24 11:43:23,991 DEBUG entry '# deb http://ppa.launchpad.net/numix/ppa/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,991 DEBUG examining: 'deb http://download.virtualbox.org/virtualbox/debian trusty contrib' 2016-08-24 11:43:23,993 DEBUG entry '# deb http://download.virtualbox.org/virtualbox/debian xenial contrib # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,993 DEBUG examining: 'deb http://ppa.launchpad.net/mosquitto-dev/mosquitto-ppa/ubuntu trusty main' 2016-08-24 11:43:23,995 DEBUG entry '# deb http://ppa.launchpad.net/mosquitto-dev/mosquitto-ppa/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,996 DEBUG examining: 'deb http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu trusty main' 2016-08-24 11:43:23,998 DEBUG entry '# deb http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:23,998 DEBUG examining: 'deb http://ppa.launchpad.net/team-xbmc/ppa/ubuntu trusty main' 2016-08-24 11:43:24,000 DEBUG entry '# deb http://ppa.launchpad.net/team-xbmc/ppa/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:24,000 DEBUG examining: 'deb https://deb.nodesource.com/node_5.x trusty main' 2016-08-24 11:43:24,002 DEBUG entry '# deb https://deb.nodesource.com/node_5.x xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:24,002 DEBUG examining: 'deb-src https://deb.nodesource.com/node_5.x trusty main' 2016-08-24 11:43:24,004 DEBUG entry '# deb-src https://deb.nodesource.com/node_5.x xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:24,004 DEBUG examining: 'deb http://ppa.launchpad.net/hollywood/ppa/ubuntu trusty main' 2016-08-24 11:43:24,006 DEBUG entry '# deb http://ppa.launchpad.net/hollywood/ppa/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:24,007 DEBUG examining: 'deb http://ppa.launchpad.net/strukturag/libde265/ubuntu trusty main' 2016-08-24 11:43:24,009 DEBUG entry '# deb http://ppa.launchpad.net/strukturag/libde265/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:24,010 DEBUG examining: 'deb http://ppa.launchpad.net/noobslab/apps/ubuntu trusty main' 2016-08-24 11:43:24,012 DEBUG entry '# deb http://ppa.launchpad.net/noobslab/apps/ubuntu xenial main # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:43:24,013 DEBUG examining: 'deb http://binaries.erlang-solutions.com/debian trusty contrib' 2016-08-24 11:43:24,015 DEBUG entry '# deb http://binaries.erlang-solutions.com/debian xenial contrib # disabled on upgrade to xenial' was disabled (unknown mirror) 2016-08-24 11:47:04,717 DEBUG running doUpdate() (showErrors=True) 2016-08-24 11:56:46,999 ERROR IOError/SystemError in cache.update(): 'W:Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/xenial/universe/source/Sources 404 Not Found [IP: 91.189.88.152 80] , W:Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-amd64/Packages 404 Not Found [IP: 91.189.88.152 80] , W:Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-i386/Packages 404 Not Found [IP: 91.189.88.152 80] , E:Some index files failed to download. They have been ignored, or old ones used instead.'. Retrying (currentRetry: 0) 2016-08-24 12:01:00,884 ERROR IOError/SystemError in cache.update(): 'W:Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/xenial/universe/source/Sources 404 Not Found [IP: 91.189.88.149 80] , W:Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-amd64/Packages 404 Not Found [IP: 91.189.88.149 80] , W:Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-i386/Packages 404 Not Found [IP: 91.189.88.149 80] , E:Some index files failed to download. They have been ignored, or old ones used instead.'. Retrying (currentRetry: 1) 2016-08-24 12:05:14,978 ERROR IOError/SystemError in cache.update(): 'W:Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/xenial/universe/source/Sources 404 Not Found [IP: 91.189.88.161 80] , W:Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-amd64/Packages 404 Not Found [IP: 91.189.88.161 80] , W:Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-i386/Packages 404 Not Found [IP: 91.189.88.161 80] , E:Some index files failed to download. They have been ignored, or old ones used instead.'. Retrying (currentRetry: 2) 2016-08-24 12:05:14,978 ERROR doUpdate() failed completely 2016-08-24 12:18:51,911 DEBUG abort called 2016-08-24 12:18:51,964 DEBUG openCache() 2016-08-24 12:18:51,964 DEBUG failed to SystemUnLock() (E:Not locked) 2016-08-24 12:18:59,497 DEBUG /openCache(), new cache size 76495 2016-08-24 12:18:59,497 DEBUG enabling apt cron job