Ubuntu: How to completely remove kubuntu-desktop from Ubuntu


I installed kubuntu-desktop just to experiment with its interface. Then I decided to remove and did the traditional apt-get purge and autoremove but it seems elements of kubuntu are still there. For example interface elements, scrollbars, bootscreen etc are still there.

Is there any method I can completely remove without installing a fresh copy of ubuntu?


I would recommend you to use aptitude to do this operation, this will search the packages that would remove the KDE environment and leave Ubuntu's default:

sudo apt-get install aptitude  aptitude search '?and(?and(?and(?reverse-depends(kubuntu),?not(?reverse-depends(ubuntu-desktop))),?automatic), ?not(?or(?priority(required), ?priority(important))))' ubuntu-desktop+  

This will search for any package that kubuntu-desktop depends to, but doesn't depends of ubuntu-desktop. Also, this method is a bit greedy. It will remove Qt packages, ergo mplayer2, VLC and any package that depends on Qt libraries may be deleted. Add those packages with a plus sign (+) at the end, like ubuntu-desktop package in this case. For other flavors:


aptitude search '?and(?and(?and(?reverse-depends(kubuntu),?not(?reverse-depends(xubuntu-desktop))),?automatic), ?not(?or(?priority(required), ?priority(important))))' xubuntu-desktop+  


aptitude search '?and(?and(?and(?reverse-depends(kubuntu),?not(?reverse-depends(lubuntu-desktop))),?automatic), ?not(?or(?priority(required), ?priority(important))))' lubuntu-desktop+  


aptitude search '?and(?and(?and(?reverse-depends(kubuntu),?not(?reverse-depends(ubuntu-gnome-desktop))),?automatic), ?not(?or(?priority(required), ?priority(important))))' ubuntu-gnome-desktop+  

As you can see, only replace the last packages name with the name of your preferred to leave. If you used kde-core or other metapackages you should replace "kubuntu" with the name of the metapackage.

Making sense of aptitude search

To explain exactly which package are selected, lets explain the search command more deeply:

?and(      ?and(          ?and(                          // we're searching for packages that are              ?reverse-depends(kubuntu), // reverse dependencies of kubuntu              ?not(?reverse-depends(ubuntu-desktop)) // and not of ubuntu-desktop              ),     // that fulfills the condition above           ?automatic // and is automatically installed          ),       ?not(                        // and also that are not           ?or(                     // either required nor important                ?priority(required),                ?priority(important)               )           )      )  


in 14.04 LTS 64Bit

sudo apt-get remove libkde3support4 k3b-data ntrack-module-libnl-0 libkrosscore4 libgpgme++2 libqapt2 oxygen-icon-theme libktexteditor4 libtaskmanager4abi5 kdenetwork-filesharing libkblog4 libchm1 plasma-widgets-addons libkimap4 plasma-netbook libkdeui5 libkdeclarative5 ttf-oxygen-font-family gtk3-engines-oxygen user-manager gpgsm libakonadi-kcal4 kdepim-kresources libruby1.9.1 plymouth-theme-kubuntu-logo libqt4-sql-mysql libmailtransport4 kde-telepathy-filetransfer-handler kde-zeroconf libkpimtextedit4 konsole liblastfm1 libqjson0 libtag-extras1 libkdecorations4abi1 libkdcraw23 libkpeople3 kdepimlibs-kio-plugins libqrencode3 libkparts4 libakonadiprotocolinternals1 libbalooxapian4 akonadi-server nepomuk-core-data libqca2 kubuntu-notification-helper kdemultimedia-kio-plugins libntrack0 kde-runtime-data cdparanoia libplasma-geolocation-interface4 quassel-data libkemoticons4 libmessagecomposer4 libweather-ion6 cdrdao libnepomukquery4a bluedevil libakonadi-notes4 libkmediaplayer4 libksieveui4 muon-discover libmicroblog4 libnetworkmanagerqt1 libqt4-qt3support libkcddb4 amarok-utils libmailcommon4 libktpcommoninternalsprivate7 libprocessui4a katepart libmusicbrainz5-0 libkwineffects1abi4 libreoffice-base libkdepim4 kaddressbook soprano-daemon libmessageviewer4 libkwinglesutils1 libsoprano4 libqapt2-runtime vcdimager libcln6 libvirtodbc0 libbaloopim4 okular libqca2-plugin-ossl libkonq5abi1 ubuntu-release-upgrader-qt python3-pyqt4 libkephal4abi1 libksba8 kdesudo libqoauth1 gnupg-agent libxerces-c3.1 kde-telepathy-data kdelibs5-plugins kcalc libqmobipocket1 systemsettings libkolabxml1 libsyndication4 libkjsapi4 libplasmagenericshell4 libksane0 libkprintutils4 knotes libkactivities6 libincidenceeditorsng4 lightdm-kde-greeter libreoffice-sdbc-firebird libiso9660-8 kubuntu-docs amarok gwenview libkcalcore4 virtuoso-opensource-6.1-common libkmbox4 virtuoso-opensource-6.1-bin libakonadi-contact4 libakonadi-socialutils4 plasma-widget-kimpanel kde-touchpad python3-dbus.mainloop.qt libqtscript4-gui python3-pykde4 plasma-widget-menubar libxcb-record0 libkcompactdisc4 kde-config-telepathy-accounts libkabc4 libkunitconversion4 okular-extra-backends plymouth-theme-kubuntu-text libcryptsetup4 ktorrent-data libknewstuff3-4 kde-workspace-kgreet-plugins kde-config-tablet gstreamer0.10-qapt akregator libxcb-xtest0 libnepomukutils4 odbcinst1debian2 kate libkmanagesieve4 libprocesscore4abi1 libqtscript4-network libksane-data ibus-qt4 ttf-dejavu-core libyaml-0-2 libkxmlrpcclient4 plasma-nm libpam-ck-connector libqgpgme1 print-manager libksignalplotter4 libkipi-data klipper libakonadi-kmime4 gtk2-engines-oxygen kde-telepathy-text-ui libkhtml5 libkcal4 libkmime4 ksysguardd kontact libmailimporter4 libakonadi-calendar4 libprison0 libsendlater4 libntrack-qt4-1 libsignon-qt1 libkldap4 libkfile4 kubuntu-settings-desktop libpoppler-qt4-4 kamera libbaloofiles4 libtelepathy-qt4-2 libnoteshared4 libakonadi-kde4 libreoffice-kde icoutils libgrantlee-gui0 socat libkdepimdbusinterfaces4 audiocd-kio libmodemmanagerqt1 liboath0 libmessagecore4 libqtglib-2.0-0 kde-baseapps-bin kubuntu-driver-manager libattica0.4 libmygpo-qt1 libkdesu5 libknewstuff2-4 dragonplayer libdlrestrictions1 libgps20 kde-telepathy-send-file libstreams0 libkidletime4 libkateinterfaces4 libknotifyconfig4 qapt-deb-installer libtemplateparser4 about-distro dolphin kinfocenter libplasmaclock4abi4 amarok-common kaccessible libqtscript4-uitools libxcb-composite0 libkcalutils4 libreoffice-java-common usb-creator-kde libkdecore5 kdelibs-bin plasma-desktop skanlite kmag kdegraphics-strigi-analyzer nepomuk-core-runtime plasma-scriptengine-javascript libperl4-corelibs-perl qapt-batch kde-wallpapers-default libloudmouth1-0 libqaccessibilityclient0 libktnef4 libflac++6 libnepomuk4 libkleo4 odbcinst pam-kwallet libstreamanalyzer0 libkdcraw-data docbook-xsl libkntlm4 libopenconnect2 software-properties-kde ktorrent krdc kmousetool kde-workspace-data libqtscript4-core partitionmanager cryptsetup libvcdinfo0 libboost-thread1.54.0 libkfbapi1 libxcb-damage0 ruby1.9.1 libkcmutils4 libkpimidentities4 libreoffice-style-oxygen k3b libkworkspace4abi2 colord-kde libkfilemetadata4 kde-style-oxygen libdebconf-kde0 libktorrent-l10n libpolkit-qt-1-1 libkolab0 libepub0 libkdgantt2-0 kubuntu-settings-netbook libqtscript4-xml kubuntu-web-shortcuts libtelepathy-logger-qt4-1 libkactivities-models1 libkpimutils4 freespacenotifier pinentry-qt4 kde-config-gtk-style libkgapi2-2 baloo libkubuntu0 python3-sip kmix libkio5 libxml2-utils ksnapshot libktorrent5 libakonadi-kabc4 libpimcommon4 kde-config-whoopsie libkpgp4 khelpcenter4 oxygen-cursor-theme shared-desktop-ontologies libkexiv2-data libplasma3 muon-updater kde-config-pimactivity kde-telepathy libaccounts-qt1 kdepasswd libqtscript4-sql libkexiv2-11 libkontactinterface4 libmessagelist4 kde-telepathy-integration-module kdepim-runtime libkscreen1 && sudo apt-get install ubuntu-desktop  


Try installing Synaptic Package Manager from the Software Center.

Or just type in a terminal: sudo apt-get install synaptic

Once you have installed and opened the program, in the sections tab, find the KDE Desktop Environment sections and select all installed (green) selections (Ctrl+Click). Then right click, select Completely remove and apply the changes by clicking the Green check mark at the top of the window.


You could use apt-rdepends to find all the packages that have been installed by (the meta package) kubuntu-desktop and use the list as the input to apt-get purge. Possibly purging kdelibs* should be sufficient.

Another possibility would be to remove Qt (i.e. libqt4*), since KDE ist dependent on qt it will remove all KDE packages. However, this does not work very well if other Qt applications are used on the other desktop.

However, in any case, inspect the packages that apt-get wants to remove very carefully, since potentially the whole installation could be messed up by something like this.


As Braiams didn't work for me, i did the following:

Go to /var/log/apt and search for "kubuntu-desktop" in history.log (or any of the compressed history.log.[n].gz files) to find the exact packages installed with kubuntu-desktop and remove them.


This worked for me:

sudo apt-get install tasksel  sudo tasksel  

find Kubuntu desktop in the list and remove its selection. Read and confirm the propmts.

After this I also did

sudo apt-get autoremove  


The answer is at : https://help.ubuntu.com/community/PureGnome and http://www.psychocats.net/ubuntu/puregnome

1) Choose the method corresponding to your ubuntu version

2) Check which programs from the KDE environment you would like to keep because you need it and a) remove it from the removal list (with dependencies) or b) leave it in the list and reinstall it later.

3) Copy/past the command The command is as stated in this webpage and depends on your version, but generally looks like :

sudo apt-get remove akonadi-backend-mysql akonadi-server akregator amarok amarok-common amarok-utils apport-kde apturl-kde ark bluedevil cdparanoia cdrdao .... and a lot of packages

The command will not remove configuration files anyway, only the programs. If you want to also remove the config files, you will add the --purge option to the command.


Warning: The list of packages below is for a plain default install of Ubuntu with Kubuntu. You may want to keep some of the below packages and you should review what apt is going to remove before accepting.

These removal commands were created based on what Kubuntu, Xubuntu, etc. packages were added to a default Ubuntu installation. It's possible that the commands might remove some other packages you have since added to the default and want to keep. If that's the case, keep track of which packages those are and reinstall them. Your settings should still be there.

As always,backup your partition before modifying it.

Cheers, Raph


i have used this command in ubuntu 14.04.5 LTS and after doing it my system works like it does on the previouss state , you can use commmand

  sudo apt-get remove about-distro akonadi-backend-mysql akonadi-server akregator amarok  amarok-common amarok-utils apport-kde apturl-kde ark audiocd-kio baloo    bluedevil ca-certificates-java cdparanoia cdrdao colord-kde consolekit    cryptsetup cryptsetup-bin default-jre default-jre-headless docbook-xml    docbook-xsl dolphin dragonplayer fonts-dejavu-extra freerdp-x11    freespacenotifier gnupg-agent gnupg2 gpgsm gstreamer0.10-qapt    gtk2-engines-oxygen gtk3-engines-oxygen gwenview ibus-qt4 icoutils    java-common k3b k3b-data kaccessible kaddressbook kamera kate kate-data    katepart kcalc kde-base-artwork kde-baseapps-bin kde-baseapps-data    kde-config-gtk-style kde-config-pimactivity kde-config-tablet    kde-config-telepathy-accounts kde-config-whoopsie kde-runtime    kde-runtime-data kde-style-oxygen kde-telepathy kde-telepathy-approver    kde-telepathy-auth-handler kde-telepathy-contact-list kde-telepathy-data    kde-telepathy-declarative kde-telepathy-desktop-applets    kde-telepathy-filetransfer-handler kde-telepathy-integration-module    kde-telepathy-minimal kde-telepathy-send-file kde-telepathy-text-ui    kde-touchpad kde-wallpapers-default kde-window-manager    kde-window-manager-common kde-workspace kde-workspace-bin kde-workspace-data    kde-workspace-kgreet-plugins kde-zeroconf kdegraphics-strigi-analyzer    kdelibs-bin kdelibs5-data kdelibs5-plugins kdemultimedia-kio-plugins    kdenetwork-filesharing kdepasswd kdepim-kresources kdepim-runtime    kdepimlibs-kio-plugins kdesudo kdoctools khelpcenter4 kinfocenter    kio-audiocd kio-mtp klipper kmag kmail kmenuedit kmix kmousetool knotes    konsole kontact korganizer krdc kscreen ksnapshot ksysguard ksysguardd    ksystemlog ktorrent ktorrent-data kubuntu-debug-installer kubuntu-desktop    kubuntu-docs kubuntu-driver-manager kubuntu-notification-helper    kubuntu-settings-desktop kubuntu-settings-netbook kubuntu-web-shortcuts    kwalletmanager libaccounts-qt1 libaio1 libakonadi-calendar4    libakonadi-contact4 libakonadi-kabc4 libakonadi-kcal4 libakonadi-kde4    libakonadi-kmime4 libakonadi-notes4 libakonadi-socialutils4    libakonadiprotocolinternals1 libao-common libao4 libatk-wrapper-java    libatk-wrapper-java-jni libattica0.4 libavcodec54 libavformat54 libavutil52    libbaloocore4 libbaloofiles4 libbaloopim4 libbaloowidgets4 libbalooxapian4    libbluedevil1 libbonobo2-0 libbonobo2-common libboost-program-options1.54.0    libboost-thread1.54.0 libcalendarsupport4 libchm1 libck-connector0 libcln6    libcryptsetup4 libdebconf-kde0 libdlrestrictions1 libdmtx0a libdvdnav4    libdvdread4 libepub0 libeventviews4 libflac++6 libgconf2-4 libgnome2-0    libgnome2-bin libgnome2-common libgnomevfs2-0 libgnomevfs2-common    libgpgme++2 libgps20 libgrantlee-core0 libgrantlee-gui0 libgsm1    libhsqldb1.8.0-java libibus-qt1 libidl-common libidl0 libilmbase6    libincidenceeditorsng4 libindicate-qt1 libindicate5 libiso9660-8 libk3b6    libkabc4 libkactivities-bin libkactivities-models1 libkactivities6    libkalarmcal2 libkateinterfaces4 libkatepartinterfaces4 libkblog4 libkcal4    libkcalcore4 libkcalutils4 libkcddb4 libkcmutils4 libkcompactdisc4    libkdcraw-data libkdcraw23 libkde3support4 libkdeclarative5    libkdecorations4abi1 libkdecore5 libkdepim4 libkdepimdbusinterfaces4    libkdesu5 libkdeui5 libkdewebkit5 libkdgantt2-0 libkdnssd4 libkemoticons4    libkephal4abi1 libkexiv2-11 libkexiv2-data libkfbapi1 libkfile4    libkfilemetadata4 libkgapi2-2 libkholidays4 libkhtml5 libkidletime4    libkimap4 libkio5 libkipi-data libkipi11 libkjsapi4 libkjsembed4 libkldap4    libkleo4 libkmanagesieve4 libkmbox4 libkmediaplayer4 libkmime4    libknewstuff2-4 libknewstuff3-4 libknotifyconfig4 libkntlm4 libkolab0    libkolabxml1 libkonq-common libkonq5-templates libkonq5abi1    libkontactinterface4 libkparts4 libkpeople3 libkpgp4 libkpimidentities4    libkpimtextedit4 libkpimutils4 libkprintutils4 libkpty4 libkresources4    libkrosscore4 libksane-data libksane0 libksba8 libkscreen1 libkscreensaver5    libksgrd4 libksieve4 libksieveui4 libksignalplotter4 libktexteditor4    libktnef4 libktorrent-l10n libktorrent5 libktpcommoninternalsprivate7    libkubuntu0 libkunitconversion4 libkwineffects1abi4 libkwinglesutils1    libkwinglutils1abi3 libkworkspace4abi2 libkxmlrpcclient4 liblastfm1    liblightdm-qt-3-0 libloudmouth1-0 libmailcommon4 libmailimporter4    libmailtransport4 libmessagecomposer4 libmessagecore4 libmessagelist4    libmessageviewer4 libmicroblog4 libmodemmanagerqt1 libmp3lame0 libmpcdec6    libmuonprivate2 libmygpo-qt1 libmysqlclient18 libnepomuk4 libnepomukcleaner4    libnepomukcore4abi1 libnepomukquery4a libnepomukutils4 libnetworkmanagerqt1    libnoteshared4 libntrack-qt4-1 libntrack0 liboath0 libokularcore4    libopenconnect2 libopenexr6 libopenjpeg2 libopus0 liborbit-2-0 liborbit2    libpam-ck-connector libperl4-corelibs-perl libphonon4 libpimactivity4    libpimcommon4 libplasma-geolocation-interface4 libplasma3    libplasmaclock4abi4 libplasmagenericshell4 libpolkit-qt-1-1 libpoppler-qt4-4    libprison0 libprocesscore4abi1 libprocessui4a libpth20    libqaccessibilityclient0 libqalculate5 libqalculate5-data libqapt2    libqapt2-runtime libqca2 libqca2-plugin-ossl libqgpgme1 libqimageblitz4    libqjson0 libqmobipocket1 libqoauth1 libqrencode3 libqt4-qt3support    libqt4-sql-mysql libqtglib-2.0-0 libqtscript4-core libqtscript4-gui    libqtscript4-network libqtscript4-sql libqtscript4-uitools libqtscript4-xml    libreoffice-base libreoffice-base-drivers libreoffice-java-common    libreoffice-kde libreoffice-sdbc-firebird libreoffice-sdbc-hsqldb    libreoffice-style-oxygen libruby1.9.1 libschroedinger-1.0-0 libsctp1    libsendlater4 libservlet3.0-java libsignon-qt1 libsolid4 libsoprano4    libstreamanalyzer0 libstreams0 libsyndication4 libtag-extras1    libtaskmanager4abi5 libtelepathy-logger-qt4-1 libtelepathy-qt4-2    libtemplateparser4 libthreadweaver4 libva1 libvcdinfo0 libvirtodbc0    libweather-ion6 libx264-142 libxcb-composite0 libxcb-damage0 libxcb-record0    libxcb-xtest0 libxerces-c3.1 libxvidcore4 libyaml-0-2 libzip2    lightdm-kde-greeter lksctp-tools muon-discover muon-notifier muon-updater    mysql-client-core-5.5 mysql-common mysql-server-core-5.5 nepomuk-core-data    nepomuk-core-runtime ntrack-module-libnl-0 odbcinst odbcinst1debian2 okular    okular-extra-backends openjdk-7-jre openjdk-7-jre-headless    oxygen-cursor-theme oxygen-icon-theme p7zip-full pam-kwallet    partitionmanager phonon phonon-backend-gstreamer    phonon-backend-gstreamer-common phonon-backend-gstreamer1.0 pinentry-gtk2    pinentry-qt4 plasma-dataengines-addons plasma-dataengines-workspace    plasma-desktop plasma-netbook plasma-nm plasma-runner-telepathy-contact    plasma-scriptengine-javascript plasma-widget-folderview    plasma-widget-kimpanel plasma-widget-menubar plasma-widgets-addons    plasma-widgets-workspace plymouth-theme-kubuntu-logo    plymouth-theme-kubuntu-text polkit-kde-1 print-manager    python3-dbus.mainloop.qt python3-pykde4 python3-pyqt4 python3-sip qapt-batch    qapt-deb-installer quassel quassel-data ruby ruby1.9.1 scdaemon sgml-data    shared-desktop-ontologies skanlite socat software-properties-kde    soprano-daemon systemsettings ttf-dejavu-core ttf-oxygen-font-family    tzdata-java ubuntu-release-upgrader-qt usb-creator-kde user-manager    vcdimager virtuoso-minimal virtuoso-opensource-6.1-bin    virtuoso-opensource-6.1-common kubuntu-desktop  


the proposed solution via aptitude does not work with the default kubuntu 14.04 installation, failing with an error message that says it can not find a solution.

A simple alternative, although likely not removing 100% was to do

    sudo apt-get remove plasma*  

This removed kde applications like kmail, k3b, kopete, digikam,and the desktop.

Note:If u also have question or solution just comment us below or mail us on toontricks1994@gmail.com
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