我正在尝试升级Ubuntu 18.10（宇宙乌贼）Ubuntu 19.04（Disco Dingo）并尝试了以下步骤：
nagadeep@MachineName:~$ sudo apt-get update
[sudo] password for nagadeep:
Hit:1 https://repo.skype.com/deb stable InRelease
Ign:2 https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.0 InRelease
Hit:3 https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.0 Release
Get:4 http://security.ubuntu.com/ubuntu disco-security InRelease [97.5 kB]
Hit:5 http://archive.ubuntu.com/ubuntu disco InRelease
Hit:7 http://ppa.launchpad.net/longsleep/golang-backports/ubuntu disco InRelease
Get:8 http://archive.ubuntu.com/ubuntu disco-updates InRelease [97.5 kB]
Hit:9 http://ppa.launchpad.net/longsleep/golang-backports/ubuntu cosmic InRelease
Ign:10 http://repo.vivaldi.com/stable/deb stable InRelease
Hit:11 http://repo.vivaldi.com/stable/deb stable Release
Hit:12 http://security.ubuntu.com/ubuntu cosmic-security InRelease
Hit:15 http://archive.ubuntu.com/ubuntu cosmic InRelease
Hit:16 http://archive.ubuntu.com/ubuntu cosmic-updates InRelease
Hit:14 https://packagecloud.io/slacktechnologies/slack/debian jessie InRelease
Fetched 195 kB in 2s (78.6 kB/s) Reading package lists...
Done
W: Target Sources (main/source/Sources) is configured multiple times in /etc/apt/sources.list.d/longsleep-ubuntu-golang-backports-cosmic.list:2 and /etc/apt/sources.list.d/longsleep-ubuntu-golang-backports-cosmic.list:3
W: Target Sources (main/source/Sources) is configured multiple times in /etc/apt/sources.list.d/longsleep-ubuntu-golang-backports-cosmic.list:2 and /etc/apt/sources.list.d/longsleep-ubuntu-golang-backports-cosmic.list:3 nagadeep@MachineName:~$
运行sudo apt-get dist-upgrade返回以下内容：
nagadeep@MachineName:~$ sudo apt-get dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
accountsservice acl acpi-support acpid adduser adwaita-icon-theme aisleriot alsa-utils amd64-microcode anacron app-install-data-partner
apparmor apport apport-gtk apport-symptoms appstream apt apt-config-icons apt-utils aptdaemon aptdaemon-data aptitude aptitude-common apturl
apturl-common aspell at-spi2-core avahi-autoipd avahi-daemon avahi-utils baobab base-files base-passwd bash bc bind9-host binfmt-support
binutils binutils-common binutils-x86-64-linux-gnu bleachbit bluez bluez-cups bluez-obexd bolt brltty bsdutils bubblewrap build-essential
busybox-initramfs busybox-static bzip2 ca-certificates ca-certificates-java cabextract cheese cheese-common chrome-gnome-shell
chromium-codecs-ffmpeg-extra colord colord-data console-setup console-setup-linux coreutils cpp cpp-8 cracklib-runtime cups cups-browsed
cups-bsd cups-client cups-common cups-core-drivers cups-daemon cups-filters cups-filters-core-drivers cups-ipp-utils cups-ppdc
cups-server-common dash dbus dbus-user-session dbus-x11 dc dconf-cli dconf-gsettings-backend dconf-service debconf debconf-i18n debianutils
default-jdk default-jdk-headless default-jre default-jre-headless deja-dup desktop-file-utils dictionaries-common diffstat diffutils dirmngr
distro-info-data dmidecode dmsetup dns-root-data dnsmasq-base dnsutils dpkg dpkg-dev e2fsprogs ed enchant eog espeak-ng-data evince
evince-common evolution-data-server evolution-data-server-common fakeroot fdisk file file-roller findutils firefox firefox-locale-en
firefox-locale-kn fontconfig fontconfig-config fonts-freefont-ttf fonts-gujr fonts-gujr-extra fonts-indic fonts-liberation fonts-liberation2
fonts-lohit-deva fonts-lohit-gujr fonts-lohit-knda fonts-noto-cjk fonts-noto-mono fonts-opensymbol fonts-smc-anjalioldlipi
fonts-smc-chilanka fonts-smc-dyuthi fonts-smc-karumbi fonts-smc-keraleeyam fonts-smc-manjari fonts-smc-meera fonts-smc-rachana
fonts-smc-raghumalayalamsans fonts-smc-suruma fonts-smc-uroob fonts-thai-tlwg fonts-tlwg-garuda fonts-tlwg-garuda-ttf fonts-tlwg-kinnari
fonts-tlwg-kinnari-ttf fonts-tlwg-laksaman fonts-tlwg-laksaman-ttf fonts-tlwg-loma fonts-tlwg-loma-ttf fonts-tlwg-mono fonts-tlwg-mono-ttf
fonts-tlwg-norasi fonts-tlwg-norasi-ttf fonts-tlwg-purisa fonts-tlwg-purisa-ttf fonts-tlwg-sawasdee fonts-tlwg-sawasdee-ttf
fonts-tlwg-typewriter fonts-tlwg-typewriter-ttf fonts-tlwg-typist fonts-tlwg-typist-ttf fonts-tlwg-typo fonts-tlwg-typo-ttf
fonts-tlwg-umpush fonts-tlwg-umpush-ttf fonts-tlwg-waree fonts-tlwg-waree-ttf fonts-ubuntu fonts-wine foomatic-db-compressed-ppds
friendly-recovery ftp fuse fwupd fwupd-signed g++ g++-8 gcc gcc-8 gcc-8-base gcc-8-base:i386 gconf-service gconf-service-backend gconf2
gconf2-common gcr gdb gdbserver gdisk gdm3 geany geany-common gedit gedit-common geoclue-2.0 geoip-database gettext gettext-base ghostscript
ghostscript-x gimp gimp-data gir1.2-accountsservice-1.0 gir1.2-atk-1.0 gir1.2-atspi-2.0 gir1.2-dee-1.0 gir1.2-freedesktop gir1.2-gck-1
gir1.2-gcr-3 gir1.2-gdesktopenums-3.0 gir1.2-gdkpixbuf-2.0 gir1.2-gdm-1.0 gir1.2-geoclue-2.0 gir1.2-geocodeglib-1.0 gir1.2-glib-2.0
gir1.2-gmenu-3.0 gir1.2-gnomebluetooth-1.0 gir1.2-gnomedesktop-3.0 gir1.2-goa-1.0 gir1.2-gst-plugins-base-1.0 gir1.2-gstreamer-1.0
gir1.2-gtk-3.0 gir1.2-gtksource-3.0 gir1.2-gweather-3.0 gir1.2-ibus-1.0 gir1.2-javascriptcoregtk-4.0 gir1.2-json-1.0 gir1.2-nm-1.0
gir1.2-nma-1.0 gir1.2-notify-0.7 gir1.2-packagekitglib-1.0 gir1.2-pango-1.0 gir1.2-peas-1.0 gir1.2-polkit-1.0 gir1.2-rb-3.0 gir1.2-rsvg-2.0
gir1.2-secret-1 gir1.2-snapd-1 gir1.2-soup-2.4 gir1.2-totem-1.0 gir1.2-totemplparser-1.0 gir1.2-udisks-2.0 gir1.2-unity-5.0
gir1.2-upowerglib-1.0 gir1.2-vte-2.91 gir1.2-webkit2-4.0 gir1.2-wnck-3.0 git git-man gjs gkbd-capplet glib-networking glib-networking-common
glib-networking-services gnome-bluetooth gnome-calendar gnome-control-center gnome-control-center-data gnome-control-center-faces
gnome-desktop3-data gnome-disk-utility gnome-font-viewer gnome-getting-started-docs gnome-getting-started-docs-kn gnome-initial-setup
gnome-keyring gnome-keyring-pkcs11 gnome-mahjongg gnome-menus gnome-mines gnome-online-accounts gnome-panel gnome-panel-data
gnome-power-manager gnome-screenshot gnome-session-bin gnome-session-common gnome-settings-daemon gnome-shell gnome-shell-common
gnome-shell-extension-appindicator gnome-shell-extension-ubuntu-dock gnome-software gnome-software-common gnome-software-plugin-snap
gnome-startup-applications gnome-sudoku gnome-terminal gnome-terminal-data gnome-todo gnome-todo-common gnome-tweaks gnome-user-docs
gnome-user-docs-kn gnome-weather gnupg gnupg-l10n gnupg-utils gpg gpg-agent gpg-wks-client gpg-wks-server gpgconf gpgsm gpgv grep
grilo-plugins-0.3-base groff-base grub-common grub-efi-amd64-bin grub-efi-amd64-signed grub-pc grub-pc-bin grub2-common
gsettings-desktop-schemas gstreamer1.0-alsa gstreamer1.0-clutter-3.0 gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-libav
gstreamer1.0-packagekit gstreamer1.0-plugins-base gstreamer1.0-plugins-base:i386 gstreamer1.0-plugins-base-apps gstreamer1.0-plugins-good
gstreamer1.0-plugins-ugly gstreamer1.0-pulseaudio gstreamer1.0-tools gstreamer1.0-vaapi gstreamer1.0-x gtk-update-icon-cache guile-2.2-libs
gvfs gvfs-backends gvfs-bin gvfs-common gvfs-daemons gvfs-fuse gvfs-libs gzip hdparm hostname hplip hplip-data hunspell-en-gb hunspell-en-za
hyphen-en-gb hyphen-en-us i965-va-driver ibus ibus-gtk ibus-gtk3 ibus-table im-config imagemagick imagemagick-6-common imagemagick-6.q16
info init init-system-helpers initramfs-tools initramfs-tools-bin initramfs-tools-core inputattach install-info intel-microcode
intltool-debian iproute2 iptables iputils-ping iputils-tracepath irqbalance isc-dhcp-client isc-dhcp-common iso-codes iw java-common junit4
kbd keyboard-configuration klibc-utils kmod krb5-locales language-pack-en language-pack-en-base language-pack-gnome-en
language-pack-gnome-en-base language-pack-gnome-kn language-pack-gnome-kn-base language-pack-kn language-pack-kn-base
language-selector-common language-selector-gnome libaa1 libaacs0 libaccountsservice0 libacl1 libalgorithm-diff-xs-perl libamd2 libaom0
libapparmor1 libappindicator1 libappindicator3-1 libappstream-glib8 libappstream4 libapt-inst2.0 libapt-pkg-perl libapt-pkg5.0
libarchive-zip-perl libarchive13 libargon2-1 libasan5 libasn1-8-heimdal libasn1-8-heimdal:i386 libasound2 libasound2:i386 libasound2-data
libasound2-plugins libasound2-plugins:i386 libaspell15 libassuan0 libatk-adaptor libatk-adaptor:i386 libatk-bridge2.0-0
libatk-bridge2.0-0:i386 libatk1.0-0 libatk1.0-0:i386 libatk1.0-data libatomic1 libatspi2.0-0 libatspi2.0-0:i386 libattr1 libaudit-common
libaudit1 libavahi-client3 libavahi-client3:i386 libavahi-common-data libavahi-common-data:i386 libavahi-common3 libavahi-common3:i386
libavahi-core7 libavahi-glib1 libavahi-ui-gtk3-0 libavcodec58 libavfilter7 libavformat58 libavutil56 libbabeltrace1 libbabl-0.1-0
libbinutils libblas3 libblkid1 libblkid1:i386 libblockdev-crypto2 libblockdev-fs2 libblockdev-loop2 libblockdev-part-err2 libblockdev-part2
libblockdev-swap2 libblockdev-utils2 libblockdev2 libbluetooth3 libbluray2 libboost-date-time1.67.0 libboost-filesystem1.67.0
libboost-iostreams1.67.0 libboost-locale1.67.0 libboost-system1.67.0 libboost-thread1.67.0 libbrlapi0.6 libbrotli1 libbsd0 libbsd0:i386
libbz2-1.0 libbz2-1.0:i386 libc-bin libc-dev-bin libc6 libc6:i386 libc6-dbg libc6-dev libcaca0 libcairo-gobject-perl libcairo-gobject2
libcairo-perl libcairo2 libcairo2:i386 libcamd2 libcamel-1.2-62 libcap-ng0 libcap2 libcap2:i386 libcap2-bin libcc1-0 libccolamd2
libcdr-0.1-1 libcheese-gtk25 libcheese8 libcholmod3 libchromaprint1 libclone-perl libclutter-1.0-0 libclutter-1.0-common
libclutter-gst-3.0-0 libclutter-gtk-1.0-0 libcmis-0.5-5v5 libcodec2-0.8.1 libcogl-common libcogl-pango20 libcogl-path20 libcogl20 libcolamd2
libcolord2 libcolorhug2 libcom-err2 libcom-err2:i386 libcommons-lang3-java libcrack2 libcroco3 libcryptsetup12 libcups2 libcups2:i386
libcupsfilters1 libcupsimage2 libcurl3-gnutls libcurl4 libdatrie1 libdatrie1:i386 libdazzle-1.0-0 libdb5.3 libdb5.3:i386 libdbus-1-3
libdbus-1-3:i386 libdbus-glib-1-2 libdconf1 libdebconfclient0 libdee-1.0-4 libdevmapper1.02.1 libdjvulibre-text libdjvulibre21
libdmapsharing-3.0-2 libdpkg-perl libdrm-amdgpu1 libdrm-amdgpu1:i386 libdrm-common libdrm-intel1 libdrm-intel1:i386 libdrm-nouveau2
libdrm-nouveau2:i386 libdrm-radeon1 libdrm-radeon1:i386 libdrm2 libdrm2:i386 libdv4 libdvdread4 libdw1 libe-book-0.1-1 libebackend-1.2-10
libebook-1.2-19 libebook-contacts-1.2-2 libecal-1.2-19 libedata-book-1.2-25 libedata-cal-1.2-29 libedataserverui-1.2-2 libedit2
libedit2:i386 libefiboot1 libefivar1 libegl-mesa0 libegl1 libegl1-mesa libel-api-java libelf1 libelf1:i386 libenchant1c2a liberror-perl
libespeak-ng1 libetonyek-0.1-1 libevdev2 libevdocument3-4 libevview3-3 libexif12 libexif12:i386 libexiv2-14 libexpat1 libexpat1:i386
libexpat1-dev libext2fs2 libfakeroot libfcgi-perl libfdisk1 libffi6 libffi6:i386 libfile-fcntllock-perl libflite1 libfontconfig1
libfontconfig1:i386 libfontembed1 libfprint0 libfreerdp-client2-2 libfreerdp2-2 libfreetype6 libfreetype6:i386 libfribidi0 libfribidi0:i386
libfuse2 libfwupd2 libgail-3-0 libgbm1 libgcab-1.0-0 libgcc-8-dev libgcc1 libgcc1:i386 libgck-1-0 libgconf-2-4 libgcr-base-3-1 libgcr-ui-3-1
libgcrypt20 libgcrypt20:i386 libgd3 libgd3:i386 libgdata-common libgdata22 libgdbm-compat4 libgdbm-compat4:i386 libgdk-pixbuf2.0-0
libgdk-pixbuf2.0-0:i386 libgdk-pixbuf2.0-bin libgdk-pixbuf2.0-common libgdm1 libgee-0.8-2 libgegl-0.4-0 libgegl-common libgeoclue-2-0
libgeocode-glib0 libgexiv2-2 libgfortran5 libgimp2.0 libgirepository-1.0-1 libgjs0g libgl1 libgl1:i386 libgl1-mesa-dri libgl1-mesa-dri:i386
libgl1-mesa-glx libglapi-mesa libglapi-mesa:i386 libgles2 libglib-object-introspection-perl libglib-perl libglib2.0-0 libglib2.0-0:i386
libglib2.0-bin libglib2.0-data libglvnd0 libglvnd0:i386 libglx-mesa0 libglx-mesa0:i386 libglx0 libglx0:i386 libgmime-3.0-0 libgmp10
libgmp10:i386 libgnome-autoar-0-0 libgnome-bluetooth13 libgnome-desktop-3-17 libgnome-games-support-1-3 libgnome-games-support-common
libgnome-menu-3-0 libgnome-todo libgnomekbd-common libgnomekbd8 libgnutls30 libgnutls30:i386 libgoa-1.0-0b libgoa-1.0-common
libgoa-backend-1.0-1 libgom-1.0-0 libgomp1 libgpg-error0 libgpg-error0:i386 libgpgme11 libgpgmepp6 libgphoto2-6 libgphoto2-6:i386
libgphoto2-l10n libgphoto2-port12 libgphoto2-port12:i386 libgraphene-1.0-0 libgraphite2-3 libgraphite2-3:i386 libgrilo-0.3-0 libgs9
libgs9-common libgsm1 libgsm1:i386 libgspell-1-1 libgspell-1-common libgssapi-krb5-2 libgssapi-krb5-2:i386 libgssapi3-heimdal
libgssapi3-heimdal:i386 libgstreamer-gl1.0-0 libgstreamer-plugins-bad1.0-0 libgstreamer-plugins-base1.0-0
libgstreamer-plugins-base1.0-0:i386 libgstreamer-plugins-good1.0-0 libgstreamer1.0-0 libgstreamer1.0-0:i386 libgtk-3-0 libgtk-3-bin
libgtk-3-common libgtksourceview-3.0-1 libgtksourceview-3.0-common libgtop-2.0-11 libgtop2-common libgusb2 libgutenprint-common
libgutenprint9 libgweather-3-15 libgweather-common libgxps2 libharfbuzz-icu0 libharfbuzz0b libharfbuzz0b:i386 libhawtjni-runtime-java
libhcrypto4-heimdal libhcrypto4-heimdal:i386 libheif1 libheimbase1-heimdal libheimbase1-heimdal:i386 libheimntlm0-heimdal
libheimntlm0-heimdal:i386 libhogweed4 libhogweed4:i386 libhpmud0 libhtml-parser-perl libhtml-tree-perl libhttp-daemon-perl
libhx509-5-heimdal libhx509-5-heimdal:i386 libhyphen0 libibus-1.0-5 libical3 libidn11 libiec61883-0 libimobiledevice6 libinput-bin
libinput10 libio-pty-perl libio-stringy-perl libip4tc0 libip6tc0 libiptc0 libitm1 libiw30 libjack-jackd2-0 libjack-jackd2-0:i386
libjansi-java libjansi-native-java libjansson4 libjavascriptcoregtk-4.0-18 libjbig2dec0 libjpeg-turbo8 libjpeg-turbo8:i386 libjs-jquery
libjs-sphinxdoc libjs-underscore libjson-c3 libjson-glib-1.0-0 libjson-glib-1.0-common libjsp-api-java libjsr305-java libk5crypto3
libk5crypto3:i386 libkeyutils1 libkeyutils1:i386 libklibc libkmod2 libkpathsea6 libkrb5-26-heimdal libkrb5-26-heimdal:i386 libkrb5-3
libkrb5-3:i386 libkrb5support0 libkrb5support0:i386 liblapack3 libldap-2.4-2 libldap-2.4-2:i386 libldap-common libldb1 liblirc-client0
liblist-moreutils-perl libllvm7 libllvm7:i386 liblocale-gettext-perl liblouis-data liblouisutdml-bin liblouisutdml-data liblouisutdml8
liblsan0 libltdl7 libltdl7:i386 liblua5.3-0 liblz4-1 liblz4-1:i386 liblzma5 liblzma5:i386 libmagic-mgc libmagic1 libmagickcore-6.q16-6
libmagickcore-6.q16-6-extra libmagickwand-6.q16-6 libmaven-resolver-java libmaven3-core-java libmbim-glib4 libmbim-proxy libminiupnpc17
libmm-glib0 libmount1 libmount1:i386 libmozjs-60-0 libmpfr6 libmpx2 libmspack0 libmspub-0.1-1 libmtp-common libmtp-runtime libmtp9
libmypaint-1.3-0 libmypaint-common libmysofa0 libnatpmp1 libnautilus-extension1a libncurses6 libncurses6:i386 libncursesw6 libneon27-gnutls
libnet-dbus-perl libnet-dns-perl libnet-dns-sec-perl libnet-libidn-perl libnet-ssleay-perl libnettle6 libnettle6:i386 libnewt0.52
libnghttp2-14 libnm0 libnma0 libnorm1 libnotify-bin libnotify4 libnspr4 libnss-systemd libnss3 libnuma1 liboauth0 libodbc1 libodbc1:i386
libodfgen-0.1-1 libopenal-data libopenal1 libopenal1:i386 libopencv-core3.2 libopencv-imgproc3.2 libopenexr23 libopenjp2-7 libopenmpt0
libopus0 libopus0:i386 liborc-0.4-0 liborc-0.4-0:i386 libosmesa6 libosmesa6:i386 libp11-kit0 libp11-kit0:i386 libpackagekit-glib2-18
libpam-cap libpam-gnome-keyring libpam-modules libpam-modules-bin libpam-runtime libpam-systemd libpam0g libpango-1.0-0 libpango-1.0-0:i386
libpangocairo-1.0-0 libpangocairo-1.0-0:i386 libpangoft2-1.0-0 libpangoft2-1.0-0:i386 libpangoxft-1.0-0 libpaper-utils libpaper1
libparse-debianchangelog-perl libparted-fs-resize0 libparted2 libpcaudio0 libpcre3 libpcre3:i386 libpcsclite1 libpeas-1.0-0 libpeas-common
libperlio-gzip-perl libpgm-5.2-0 libphonenumber7 libpipeline1 libpixman-1-0 libpixman-1-0:i386 libplexus-classworlds-java
libplexus-sec-dispatcher-java libplexus-utils2-java libplist3 libplymouth4 libpng16-16 libpng16-16:i386 libpolkit-agent-1-0
libpolkit-backend-1-0 libpolkit-gobject-1-0 libpoppler-glib8 libpopt0 libpostproc55 libprocps7 libproxy1-plugin-gsettings
libproxy1-plugin-networkmanager libproxy1v5 libpsl5 libpthread-stubs0-dev libpulse-mainloop-glib0 libpulse0 libpulse0:i386 libpulsedsp
libpwquality-common libpwquality1 libpython-all-dev libpython-dev libpython-stdlib libpython2-dev libpython2-stdlib libpython2.7
libpython2.7-dev libpython2.7-minimal libpython2.7-stdlib libpython3-stdlib libqmi-glib5 libqmi-proxy libqpdf21 libquadmath0
libreoffice-avmedia-backend-gstreamer libreoffice-base-core libreoffice-calc libreoffice-common libreoffice-core libreoffice-draw
libreoffice-gnome libreoffice-gtk3 libreoffice-help-en-gb libreoffice-help-en-us libreoffice-impress libreoffice-l10n-en-gb
libreoffice-l10n-en-za libreoffice-l10n-kn libreoffice-math libreoffice-ogltrans libreoffice-pdfimport libreoffice-style-breeze
libreoffice-style-colibre libreoffice-style-elementary libreoffice-style-tango libreoffice-writer librest-0.7-0 librhythmbox-core10
libroken18-heimdal libroken18-heimdal:i386 librsvg2-2 librsvg2-common libsane-common libsane-hpaio libsane1 libsane1:i386 libsasl2-2
libsasl2-2:i386 libsasl2-modules libsasl2-modules:i386 libsasl2-modules-db libsasl2-modules-db:i386 libsbc1 libsdl1.2debian libseccomp2
libsecret-1-0 libsecret-common libselinux1 libselinux1:i386 libsemanage-common libsemanage1 libservlet-api-java libservlet3.1-java
libsigc++-2.0-0v5 libsisu-inject-java libsm-dev libsm6 libsmartcols1 libsmbclient libsnapd-glib1 libsndfile1 libsndfile1:i386 libsndio7.0
libsndio7.0:i386 libsnmp-base libsnmp30 libsnmp30:i386 libsodium23 libsonic0 libsoup-gnome2.4-1 libsoup2.4-1 libspeechd2 libsqlite3-0
libsqlite3-0:i386 libss2 libssh-4 libssh-gcrypt-4 libssl1.1 libssl1.1:i386 libstartup-notification0 libstdc++-8-dev libstdc++6
libstdc++6:i386 libsub-name-perl libsuitesparseconfig5 libswresample3 libswscale5 libsynctex2 libsysmetrics1 libsystemd0 libsystemd0:i386
libtag1v5 libtag1v5-vanilla libtalloc2 libtbb2 libtdb1 libtdb1:i386 libteamdctl0 libtevent0 libtext-charwidth-perl libtext-iconv-perl
libthai-data libthai0 libthai0:i386 libtheora0 libtheora0:i386 libtiff5 libtiff5:i386 libtinfo6 libtinfo6:i386 libtotem-plparser-common
libtotem-plparser18 libtotem0 libtracker-sparql-2.0-0 libtsan0 libu2f-udev libubsan1 libudev1 libudev1:i386 libudisks2-0 libumfpack5
libunistring2 libunistring2:i386 libunity-protocol-private0 libunity-scopes-json-def-desktop libunity9 libunwind8 libupower-glib3
liburi-perl libusbmuxd4 libuuid1 libuuid1:i386 libv4l-0 libv4l-0:i386 libv4lconvert0 libv4lconvert0:i386 libva-drm2 libva-wayland2
libva-x11-2 libva2 libvisio-0.1-1 libvisual-0.4-0 libvisual-0.4-0:i386 libvncclient1 libvolume-key1 libvorbis0a libvorbis0a:i386
libvorbisenc2 libvorbisenc2:i386 libvorbisfile3 libvorbisfile3:i386 libvte-2.91-0 libvte-2.91-common libwacom-bin libwacom-common libwacom2
libwagon-file-java libwagon-http-shaded-java libwagon-provider-api-java libwavpack1 libwayland-client0 libwayland-cursor0 libwayland-egl1
libwayland-server0 libwbclient0 libwebkit2gtk-4.0-37 libwebsocket-api-java libwhoopsie0 libwind0-heimdal libwind0-heimdal:i386 libwine
libwine:i386 libwinpr2-2 libwmf0.2-7 libwmf0.2-7-gtk libwnck-3-0 libwnck-3-common libwpd-0.10-10 libwpg-0.3-3 libwrap0 libwrap0:i386
libwww-perl libxapian30 libxatracker2 libxcb-dri2-0 libxcb-dri2-0:i386 libxcb-dri3-0 libxcb-dri3-0:i386 libxcb-glx0 libxcb-glx0:i386
libxcb-icccm4 libxcb-present0 libxcb-present0:i386 libxcb-randr0 libxcb-render0 libxcb-render0:i386 libxcb-res0 libxcb-shape0 libxcb-shm0
libxcb-shm0:i386 libxcb-sync1 libxcb-sync1:i386 libxcb-xfixes0 libxcb-xkb1 libxcb-xtest0 libxcb-xv0 libxcb1 libxcb1:i386 libxcb1-dev
libxcursor1 libxcursor1:i386 libxinerama1 libxinerama1:i386 libxklavier16 libxml-libxml-perl libxml-parser-perl libxml-twig-perl libxml2
libxml2:i386 libxmlsec1 libxmlsec1-nss libxtables12 libyajl2 libyaml-libyaml-perl libyelp0 libzeitgeist-2.0-0 libzmq5 libzstd1
libzvbi-common libzvbi0 lintian linux-firmware linux-generic linux-headers-generic linux-image-generic linux-libc-dev linux-signed-generic
locales login logrotate lsb-base lsb-release lsof ltrace man-db maven media-player-info mesa-va-drivers mesa-vdpau-drivers modemmanager
mount mousetweaks mtools multiarch-support mutter mutter-common mythes-en-us nano nautilus nautilus-data nautilus-extension-gnome-terminal
nautilus-sendto ncurses-base ncurses-bin netbase netcat-openbsd netplan.io network-manager network-manager-config-connectivity-ubuntu
network-manager-gnome network-manager-openvpn network-manager-openvpn-gnome network-manager-pptp network-manager-pptp-gnome
networkd-dispatcher notification-daemon ntfs-3g openjdk-11-jdk openjdk-11-jdk-headless openjdk-11-jre openjdk-11-jre-headless
openjdk-8-jre-headless openprinting-ppds openssh-client openssl openvpn orca p11-kit p11-kit-modules packagekit packagekit-tools parted
passwd patch pcmciautils perl perl-base plymouth plymouth-label plymouth-theme-ubuntu-logo plymouth-theme-ubuntu-text policykit-1
policykit-desktop-privileges poppler-utils ppp pptp-linux printer-driver-foo2zjs printer-driver-foo2zjs-common printer-driver-gutenprint
printer-driver-hpcups printer-driver-min12xxw printer-driver-postscript-hp printer-driver-sag-gdi procps psmisc publicsuffix pulseaudio
pulseaudio-module-bluetooth pulseaudio-utils python python-all python-all-dev python-apt-common python-cairo python-cffi-backend
python-crypto python-cryptography python-dbus python-dev python-entrypoints python-gi python-keyring python-keyrings.alt python-minimal
python-pip python-pip-whl python-pkg-resources python-setuptools python-six python-wheel python-xdg python2 python2-dev python2-minimal
python2.7 python2.7-dev python2.7-minimal python3 python3-apport python3-apt python3-aptdaemon python3-aptdaemon.gtk3widgets python3-brlapi
python3-cairo python3-cffi-backend python3-chardet python3-cryptography python3-cups python3-cupshelpers python3-dbus python3-debconf
python3-debian python3-distro-info python3-distupgrade python3-entrypoints python3-gdbm python3-gi python3-gi-cairo python3-httplib2
python3-jwt python3-keyring python3-lazr.restfulclient python3-louis python3-macaroonbakery python3-markupsafe python3-minimal python3-nacl
python3-netifaces python3-oauthlib python3-pil python3-pkg-resources python3-problem-report python3-protobuf python3-pyatspi
python3-pymacaroons python3-renderpm python3-reportlab python3-reportlab-accel python3-requests python3-simplejson python3-six
python3-software-properties python3-speechd python3-systemd python3-tz python3-uno python3-update-manager python3-urllib3 python3-xdg
python3-yaml qpdf readline-common remmina remmina-common remmina-plugin-rdp remmina-plugin-secret remmina-plugin-vnc rfkill rhythmbox
rhythmbox-data rhythmbox-plugin-alternative-toolbar rhythmbox-plugins rsync rsyslog rtkit samba-libs sane-utils seahorse sed
session-migration shim-signed shotwell shotwell-common simple-scan snapd software-properties-common software-properties-gtk
speech-dispatcher speech-dispatcher-audio-plugins speech-dispatcher-espeak-ng speedtest-cli spice-vdagent squashfs-tools strace sudo
switcheroo-control syslinux syslinux-common system-config-printer system-config-printer-common system-config-printer-udev systemd
systemd-sysv t1utils tar telnet thermald thunderbird thunderbird-gnome-support thunderbird-locale-en thunderbird-locale-en-gb
thunderbird-locale-en-us totem totem-common totem-plugins transmission-common transmission-gtk tzdata ubuntu-advantage-tools ubuntu-docs
ubuntu-drivers-common ubuntu-mono ubuntu-release-upgrader-core ubuntu-release-upgrader-gtk ubuntu-report ubuntu-session ubuntu-settings
ubuntu-software ubuntu-wallpapers ubuntu-wallpapers-cosmic ubuntu-web-launchers ucf udev udisks2 ufw unattended-upgrades uno-libs3 unzip
update-inetd update-manager update-manager-core update-notifier update-notifier-common upower ure usb-creator-common usb-creator-gtk usbmuxd
usbutils util-linux uuid-runtime va-driver-all vim vim-common vim-runtime vim-tiny vino wget whiptail whoopsie wine wine32:i386 wine64
winetricks wireless-tools wpasupplicant x11-common xbrlapi xdg-desktop-portal xdg-desktop-portal-gtk xdg-user-dirs xdg-user-dirs-gtk
xfonts-base xorg xserver-common xserver-xephyr xserver-xorg xserver-xorg-core xserver-xorg-input-all xserver-xorg-input-libinput
xserver-xorg-input-wacom xserver-xorg-legacy xserver-xorg-video-all xserver-xorg-video-amdgpu xserver-xorg-video-ati
xserver-xorg-video-intel xserver-xorg-video-nouveau xserver-xorg-video-radeon xserver-xorg-video-vesa xwayland xxd xz-utils
yaru-theme-gnome-shell yaru-theme-gtk yaru-theme-icon yaru-theme-sound yelp yelp-xsl zeitgeist-core zenity zenity-common zlib1g zlib1g:i386
0 upgraded, 0 newly installed, 0 to remove and 1496 not upgraded.
我尝试了“以下包裹已被保留：”为什么以及我该如何解决？，我该如何修复 apt 错误“W：目标包...被多次配置”？，我正在尝试从 Ubuntu 18.10 升级到 19.04，但无法，以及其他一些链接。
当我尝试使用其他命令时，也会出现类似的消息 ( 0 upgraded, 0 newly installed, 0 to remove and 1496 not upgraded.)。有没有办法可以解决这个问题并执行升级？
答案1
经过一番努力，我终于解决了这个问题。以下是我尝试的方法。
- 我将源更新为单个版本，就我而言是 Ubuntu 18.10（Cosmic Cuttlefish）。
- 随后，我通过将保留的包标记为 unhold（）解决了问题的第二部分
sudo apt-mark unhold <package-name>。请注意，多个名称package-name可以用空格分隔，但没有换行符。 接下来我执行了以下命令
sudo apt-get update sudo apt-get upgrade sudo do-release-upgrade所有步骤都顺利进行，最终我成功升级到 Ubuntu 19.04 (Disco Dingo)。在上述步骤中，请随时重新启动 Ubuntu。