root@ubuntu:/# sudo apt install lightdm Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: libwine-development libwine-development:i386 wine32-development:i386 wine64-development Use 'sudo apt autoremove' to remove them. The following additional packages will be installed: geoclue geoclue-ubuntu-geoip gnome-screensaver indicator-applet indicator-application indicator-common indicator-datetime indicator-keyboard indicator-messages indicator-power indicator-session indicator-sound libaccounts-glib0 libfcitx-config4 libfcitx-gclient1 libfcitx-utils0 libgeoclue0 libido3-0.1-0 liblightdm-gobject-1-0 libnm-glib4 libnm-util2 libpanel-applet3 libunity-settings-daemon1 liburl-dispatcher1 ubuntu-touch-sounds unity-greeter unity-settings-daemon Suggested packages: unity-greeter-session-broadcast fcitx url-dispatcher bindfs lightdm-remote-session-freerdp lightdm-remote-session-uccsconfigure remote-login-service Recommended packages: systemd-services The following NEW packages will be installed: geoclue geoclue-ubuntu-geoip gnome-screensaver indicator-applet indicator-application indicator-common indicator-datetime indicator-keyboard indicator-messages indicator-power indicator-session indicator-sound libaccounts-glib0 libfcitx-config4 libfcitx-gclient1 libfcitx-utils0 libgeoclue0 libido3-0.1-0 liblightdm-gobject-1-0 libnm-glib4 libnm-util2 libpanel-applet3 libunity-settings-daemon1 liburl-dispatcher1 lightdm ubuntu-touch-sounds unity-greeter unity-settings-daemon 0 upgraded, 28 newly installed, 0 to remove and 0 not upgraded. Need to get 15.1 MB of archives. After this operation, 24.9 MB of additional disk space will be used. Do you want to continue? [Y/n] y Err:1 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 lightdm amd64 1.26.0-0ubuntu1 Could not resolve 'ir.archive.ubuntu.com' Err:2 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 libgeoclue0 amd64 0.12.99-4ubuntu2 Could not resolve 'ir.archive.ubuntu.com' Err:3 http://ir.archive.ubuntu.com/ubuntu bionic-updates/main amd64 libnm-util2 amd64 1.10.6-2ubuntu1.4 Could not resolve 'ir.archive.ubuntu.com' Err:4 http://ir.archive.ubuntu.com/ubuntu bionic-updates/main amd64 libnm-glib4 amd64 1.10.6-2ubuntu1.4 Could not resolve 'ir.archive.ubuntu.com' Err:5 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 geoclue amd64 0.12.99-4ubuntu2 Could not resolve 'ir.archive.ubuntu.com' Err:6 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 geoclue-ubuntu-geoip amd64 1.0.2+18.04.20180223-0ubuntu1 Could not resolve 'ir.archive.ubuntu.com' Err:7 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 gnome-screensaver amd64 3.6.1-8ubuntu3 Could not resolve 'ir.archive.ubuntu.com' Err:8 http://ir.archive.ubuntu.com/ubuntu bionic/main amd64 libido3-0.1-0 amd64 13.10.0+17.04.20161028-0ubuntu1 Could not resolve 'ir.archive.ubuntu.com' Err:9 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 libpanel-applet3 amd64 1:3.26.0-1ubuntu5 Could not resolve 'ir.archive.ubuntu.com' Err:10 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 indicator-applet amd64 12.10.2+17.10.20170425-0ubuntu1 Could not resolve 'ir.archive.ubuntu.com' Ign:11 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 indicator-common all 16.10.0+18.04.20180321.1-0ubuntu1 Err:12 http://ir.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 indicator-application amd64 12.10.1+18.04.20190308.1-0ubuntu1 Could not resolve 'ir.archive.ubuntu.com' Err:13 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 libaccounts-glib0 amd64 1.23+17.04.20161104-0ubuntu1 Could not resolve 'ir.archive.ubuntu.com' Err:14 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 liburl-dispatcher1 amd64 0.1+17.04.20170328-0ubuntu4 Could not resolve 'ir.archive.ubuntu.com' Err:15 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 indicator-datetime amd64 15.10+17.10.20170829.2-0ubuntu4 Could not resolve 'ir.archive.ubuntu.com' Err:16 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 libfcitx-utils0 amd64 1:4.2.9.6-1 Could not resolve 'ir.archive.ubuntu.com' Err:17 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 libfcitx-gclient1 amd64 1:4.2.9.6-1 Could not resolve 'ir.archive.ubuntu.com' Err:18 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 liblightdm-gobject-1-0 amd64 1.26.0-0ubuntu1 Could not resolve 'ir.archive.ubuntu.com' Err:19 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 indicator-keyboard amd64 0.0.0+18.04.20180216-0ubuntu1 Could not resolve 'ir.archive.ubuntu.com' Err:20 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 indicator-messages amd64 13.10.1+17.04.20170120-0ubuntu2 Could not resolve 'ir.archive.ubuntu.com' Err:21 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 indicator-power amd64 12.10.6+17.10.20170829.1-0ubuntu4 Could not resolve 'ir.archive.ubuntu.com' Err:22 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 indicator-session amd64 17.3.20+17.10.20171006-0ubuntu1 Could not resolve 'ir.archive.ubuntu.com' Err:23 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 libfcitx-config4 amd64 1:4.2.9.6-1 Could not resolve 'ir.archive.ubuntu.com' Err:24 http://ir.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 libunity-settings-daemon1 amd64 15.04.1+18.04.20180413-0ubuntu1.2 Could not resolve 'ir.archive.ubuntu.com' Ign:25 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 ubuntu-touch-sounds all 15.08 Err:26 http://ir.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 unity-settings-daemon amd64 15.04.1+18.04.20180413-0ubuntu1.2 Could not resolve 'ir.archive.ubuntu.com' Err:27 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 unity-greeter amd64 18.04.0+18.04.20180314.1-0ubuntu2 Could not resolve 'ir.archive.ubuntu.com' Err:28 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 indicator-sound amd64 12.10.2+18.04.20180420.3-0ubuntu1 Could not resolve 'ir.archive.ubuntu.com' Err:11 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 indicator-common all 16.10.0+18.04.20180321.1-0ubuntu1 Could not resolve 'ir.archive.ubuntu.com' Err:25 http://ir.archive.ubuntu.com/ubuntu bionic/universe amd64 ubuntu-touch-sounds all 15.08 Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/l/lightdm/lightdm_1.26.0-0ubuntu1_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/g/geoclue/libgeoclue0_0.12.99-4ubuntu2_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/main/n/network-manager/libnm-util2_1.10.6-2ubuntu1.4_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/main/n/network-manager/libnm-glib4_1.10.6-2ubuntu1.4_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/g/geoclue/geoclue_0.12.99-4ubuntu2_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/u/ubuntu-geoip/geoclue-ubuntu-geoip_1.0.2+18.04.20180223-0ubuntu1_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/g/gnome-screensaver/gnome-screensaver_3.6.1-8ubuntu3_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/main/i/ido/libido3-0.1-0_13.10.0+17.04.20161028-0ubuntu1_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/g/gnome-panel/libpanel-applet3_3.26.0-1ubuntu5_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/i/indicator-applet/indicator-applet_12.10.2+17.10.20170425-0ubuntu1_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/libi/libindicator/indicator-common_16.10.0+18.04.20180321.1-0ubuntu1_all.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/i/indicator-application/indicator-application_12.10.1+18.04.20190308.1-0ubuntu1_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/liba/libaccounts-glib/libaccounts-glib0_1.23+17.04.20161104-0ubuntu1_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/u/url-dispatcher/liburl-dispatcher1_0.1+17.04.20170328-0ubuntu4_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/i/indicator-datetime/indicator-datetime_15.10+17.10.20170829.2-0ubuntu4_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/libfcitx-utils0_4.2.9.6-1_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/libfcitx-gclient1_4.2.9.6-1_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/l/lightdm/liblightdm-gobject-1-0_1.26.0-0ubuntu1_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/i/indicator-keyboard/indicator-keyboard_0.0.0+18.04.20180216-0ubuntu1_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/i/indicator-messages/indicator-messages_13.10.1+17.04.20170120-0ubuntu2_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/i/indicator-power/indicator-power_12.10.6+17.10.20170829.1-0ubuntu4_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/i/indicator-session/indicator-session_17.3.20+17.10.20171006-0ubuntu1_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/libfcitx-config4_4.2.9.6-1_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/u/unity-settings-daemon/libunity-settings-daemon1_15.04.1+18.04.20180413-0ubuntu1.2_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/u/ubuntu-touch-sounds/ubuntu-touch-sounds_15.08_all.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/u/unity-settings-daemon/unity-settings-daemon_15.04.1+18.04.20180413-0ubuntu1.2_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/u/unity-greeter/unity-greeter_18.04.0+18.04.20180314.1-0ubuntu2_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/pool/universe/i/indicator-sound/indicator-sound_12.10.2+18.04.20180420.3-0ubuntu1_amd64.deb Could not resolve 'ir.archive.ubuntu.com' E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing? root@ubuntu:/#