Como explicado em É possível alterar ambientes de desktops afetando meus programas / dados pessoais? , instalar (ou remover) um determinado ambiente de desktop não deve afetar nenhum outro ambiente de desktop que você tenha atualmente no seu sistema. É apenas sobre a instalação / remoção de um monte de pacotes, que apt
garante são independentes uns dos outros (dois pacotes diferentes não podem instalar exatamente o mesmo arquivo no mesmo caminho).
Dito isto, depende de como você executa o procedimento de desinstalação. Se, por exemplo, você considera que lightdm
faz parte do Xubuntu e remove (não!), E você não tem nenhum outro display manager
disponível, então você pode inutilizar seu sistema. Portanto, se você seguir outras respostas que sugiram remover uma lista muito específica de pacotes, certifique-se de verificar manualmente cada um deles que não há nada que possa ser crucial para o seu sistema.
Agora, para uma maneira segura de remover Xfce
, se eu quiser fazer isso no sistema, proceda da seguinte maneira:
root@malou-laptop:/home/liv# apt-get remove libxfce* libexo-common xfce*
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'libxfcegui4-4' for regex 'libxfce*'
Note, selecting 'libxfconf-0-dev' for regex 'libxfce*'
Note, selecting 'libxfce4ui-1-dbg' for regex 'libxfce*'
Note, selecting 'libxfce4ui-1-dev' for regex 'libxfce*'
Note, selecting 'libxfce4util-bin' for regex 'libxfce*'
Note, selecting 'libxfce4util-dev' for regex 'libxfce*'
Note, selecting 'libxfce4util-1' for regex 'libxfce*'
Note, selecting 'libxfce4ui-utils-dbg' for regex 'libxfce*'
Note, selecting 'libxfcegui4-4-dbg' for regex 'libxfce*'
Note, selecting 'libxfce4util6-dbg' for regex 'libxfce*'
Note, selecting 'libxfce4util6-dev' for regex 'libxfce*'
Note, selecting 'libxfce4ui-2-dbg' for regex 'libxfce*'
Note, selecting 'libxfce4util4' for regex 'libxfce*'
Note, selecting 'libxfce4util6' for regex 'libxfce*'
Note, selecting 'libxfce4ui-2-dev' for regex 'libxfce*'
Note, selecting 'libxfce4util-common' for regex 'libxfce*'
Note, selecting 'libxfce4menu-0.1-0' for regex 'libxfce*'
Note, selecting 'libxfconf-0-2-dbg' for regex 'libxfce*'
Note, selecting 'libxfce4ui-common' for regex 'libxfce*'
Note, selecting 'libxfce4ui-1-0' for regex 'libxfce*'
Note, selecting 'libxfce4ui-2-0' for regex 'libxfce*'
Note, selecting 'libxfce4ui-utils' for regex 'libxfce*'
Note, selecting 'libxfce4util4-dbg' for regex 'libxfce*'
Note, selecting 'libxfconf-0-2' for regex 'libxfce*'
Note, selecting 'libxfcegui4-dev' for regex 'libxfce*'
Note, selecting 'xfce4-equake-plugin' for regex 'xfce*'
Note, selecting 'libxfcegui4-4' for regex 'xfce*'
Note, selecting 'xfce4-genmon-plugin' for regex 'xfce*'
Note, selecting 'xfce4-mcs-plugins' for regex 'xfce*'
Note, selecting 'libxfconf-0-dev' for regex 'xfce*'
Note, selecting 'xfce4-messenger-plugin' for regex 'xfce*'
Note, selecting 'xfce4-time-out-plugin' for regex 'xfce*'
Note, selecting 'libxfce4ui-1-dbg' for regex 'xfce*'
Note, selecting 'xfce4-embed-plugin' for regex 'xfce*'
Note, selecting 'xfce4-mpc-plugin' for regex 'xfce*'
Note, selecting 'libxfce4ui-1-dev' for regex 'xfce*'
Note, selecting 'xfce4-terminal-dbg' for regex 'xfce*'
Note, selecting 'libxfce4util-bin' for regex 'xfce*'
Note, selecting 'libxfce4util-dev' for regex 'xfce*'
Note, selecting 'xfce4-dbg' for regex 'xfce*'
Note, selecting 'desktopnova-module-xfce' for regex 'xfce*'
Note, selecting 'xfce4-xkb-plugin' for regex 'xfce*'
Note, selecting 'xfce4-nofityd' for regex 'xfce*'
Note, selecting 'xfce4-notifyd' for regex 'xfce*'
Note, selecting 'xfce4-volumed' for regex 'xfce*'
Note, selecting 'glade-xfce' for regex 'xfce*'
Note, selecting 'libxfce4util-1' for regex 'xfce*'
Note, selecting 'xfce4-verve-plugin' for regex 'xfce*'
Note, selecting 'libxfce4ui-utils-dbg' for regex 'xfce*'
Note, selecting 'xfce4-panel' for regex 'xfce*'
Note, selecting 'xfce4-goodies' for regex 'xfce*'
Note, selecting 'xfce4-cpufreq-plugin' for regex 'xfce*'
Note, selecting 'xfce4-taskmanager' for regex 'xfce*'
Note, selecting 'xfce4-mailwatch-plugin' for regex 'xfce*'
Note, selecting 'libxfcegui4-4-dbg' for regex 'xfce*'
Note, selecting 'remmina-xfce' for regex 'xfce*'
Note, selecting 'xfce4' for regex 'xfce*'
Note, selecting 'xfce4-notes-plugin' for regex 'xfce*'
Note, selecting 'xfce4-timer-plugin' for regex 'xfce*'
Note, selecting 'xfce-theme-manager' for regex 'xfce*'
Note, selecting 'xfce4-vala-dev' for regex 'xfce*'
Note, selecting 'libxfce4util6-dbg' for regex 'xfce*'
Note, selecting 'xfce4-appfinder' for regex 'xfce*'
Note, selecting 'xfce4-radio-plugin' for regex 'xfce*'
Note, selecting 'xfce4-panel-dbg' for regex 'xfce*'
Note, selecting 'libxfce4util6-dev' for regex 'xfce*'
Note, selecting 'xfce-theme-manager-dbg' for regex 'xfce*'
Note, selecting 'libxfce4ui-2-dbg' for regex 'xfce*'
Note, selecting 'xfce4-battery-plugin' for regex 'xfce*'
Note, selecting 'xfce4-panel-dev' for regex 'xfce*'
Note, selecting 'xfce4-composite-editor' for regex 'xfce*'
Note, selecting 'libxfce4util4' for regex 'xfce*'
Note, selecting 'libxfce4util6' for regex 'xfce*'
Note, selecting 'libxfce4ui-2-dev' for regex 'xfce*'
Note, selecting 'xfce-keyboard-shortcuts' for regex 'xfce*'
Note, selecting 'xfce4-cddrive-plugin' for regex 'xfce*'
Note, selecting 'xfce4-volstatus-icon' for regex 'xfce*'
Note, selecting 'libxfce4util-common' for regex 'xfce*'
Note, selecting 'xfce4-dockbarx-plugin' for regex 'xfce*'
Note, selecting 'libxfce4menu-0.1-0' for regex 'xfce*'
Note, selecting 'xfce4-weather-plugin' for regex 'xfce*'
Note, selecting 'xfce4-netload-plugin' for regex 'xfce*'
Note, selecting 'xfce4-session-dbg' for regex 'xfce*'
Note, selecting 'xfce4-indicator-plugin' for regex 'xfce*'
Note, selecting 'xfce4-wavelan-plugin' for regex 'xfce*'
Note, selecting 'libxfconf-0-2-dbg' for regex 'xfce*'
Note, selecting 'xfce4-notes' for regex 'xfce*'
Note, selecting 'xfce4-screenshooter-plugin' for regex 'xfce*'
Note, selecting 'xfce4-xfapplet-plugin' for regex 'xfce*'
Note, selecting 'xfce-theme-manager-examples' for regex 'xfce*'
Note, selecting 'xfce4-systemload-plugin' for regex 'xfce*'
Note, selecting 'xfce4-eyes-plugin' for regex 'xfce*'
Note, selecting 'libxfce4ui-common' for regex 'xfce*'
Note, selecting 'xfce4-diskperf-plugin' for regex 'xfce*'
Note, selecting 'libxfce4ui-1-0' for regex 'xfce*'
Note, selecting 'xfce4-settings' for regex 'xfce*'
Note, selecting 'libxfce4ui-2-0' for regex 'xfce*'
Note, selecting 'gtk3-engines-xfce' for regex 'xfce*'
Note, selecting 'xfce4-fsguard-plugin' for regex 'xfce*'
Note, selecting 'xfce4-cpugraph-plugin' for regex 'xfce*'
Note, selecting 'xfce4-datetime-plugin' for regex 'xfce*'
Note, selecting 'libxfce4ui-utils' for regex 'xfce*'
Note, selecting 'xfce4-artwork' for regex 'xfce*'
Note, selecting 'xfce4-dev-tools' for regex 'xfce*'
Note, selecting 'xfce4-smartbookmark-plugin' for regex 'xfce*'
Note, selecting 'xfce4-power-manager' for regex 'xfce*'
Note, selecting 'xfce4-power-manager-data' for regex 'xfce*'
Note, selecting 'xfce4-whiskermenu-plugin' for regex 'xfce*'
Note, selecting 'gtk2-engines-xfce' for regex 'xfce*'
Note, selecting 'xfce4-mcs-manager' for regex 'xfce*'
Note, selecting 'libxfce4util4-dbg' for regex 'xfce*'
Note, selecting 'xfce4-quicklauncher-plugin' for regex 'xfce*'
Note, selecting 'xfce4-power-manager-plugins' for regex 'xfce*'
Note, selecting 'xfce4-linelight-plugin' for regex 'xfce*'
Note, selecting 'xfce4-utils' for regex 'xfce*'
Note, selecting 'xfce4-mixer-alsa' for regex 'xfce*'
Note, selecting 'xfce4-terminal' for regex 'xfce*'
Note, selecting 'xfconf' for regex 'xfce*'
Note, selecting 'xfce4-mount-plugin' for regex 'xfce*'
Note, selecting 'xfce4-session' for regex 'xfce*'
Note, selecting 'xfce4-sensors-plugin' for regex 'xfce*'
Note, selecting 'xfce4-screenshooter' for regex 'xfce*'
Note, selecting 'libxfconf-0-2' for regex 'xfce*'
Note, selecting 'xfce4-hdaps' for regex 'xfce*'
Note, selecting 'xfce4-wmdock-plugin' for regex 'xfce*'
Note, selecting 'xfce4-cellmodem-plugin' for regex 'xfce*'
Note, selecting 'xfce4-clipman' for regex 'xfce*'
Note, selecting 'xfce4-places-plugin' for regex 'xfce*'
Note, selecting 'libxfcegui4-dev' for regex 'xfce*'
Note, selecting 'xfce4-mixer' for regex 'xfce*'
Note, selecting 'xfce4-clipman-plugin' for regex 'xfce*'
Note, selecting 'gwallpapers-module-xfce' for regex 'xfce*'
Note, selecting 'xfce4-mixer-oss' for regex 'xfce*'
Note, selecting 'xfce4-vala' for regex 'xfce*'
Note, selecting 'xfce4-dict' for regex 'xfce*'
Package desktopnova-module-xfce is not installed, so not removed
Package libxfce4util4-dbg is not installed, so not removed
Package xfce4-utils is not installed, so not removed
Package xfce4-dockbarx-plugin is not installed, so not removed
Package xfce-theme-manager-dbg is not installed, so not removed
Package xfce-theme-manager-examples is not installed, so not removed
Package xfce4-radio-plugin is not installed, so not removed
Package xfce4-messenger-plugin is not installed, so not removed
Package xfce4-mpc-plugin is not installed, so not removed
Package xfce4-cellmodem-plugin is not installed, so not removed
Package xfce4-wmdock-plugin is not installed, so not removed
Package xfce4-eyes-plugin is not installed, so not removed
Package xfce4-panel-dbg is not installed, so not removed
Package libxfcegui4-4-dbg is not installed, so not removed
Package glade-xfce is not installed, so not removed
Package libxfconf-0-2-dbg is not installed, so not removed
Package xfce4-linelight-plugin is not installed, so not removed
Package xfce4-hdaps is not installed, so not removed
Package xfce4-dbg is not installed, so not removed
Package xfce4-terminal-dbg is not installed, so not removed
Package xfce4-session-dbg is not installed, so not removed
Package libxfce4util6-dbg is not installed, so not removed
Package gtk3-engines-xfce is not installed, so not removed
Package libxfce4ui-1-dbg is not installed, so not removed
Package libxfce4ui-utils-dbg is not installed, so not removed
Package libxfce4ui-2-dbg is not installed, so not removed
Package xfce4-volstatus-icon is not installed, so not removed
Package libxfce4menu-0.1-0 is not installed, so not removed
The following extra packages will be installed:
libpixman-1-0 libpixman-1-dev notify-osd
The following packages will be REMOVED:
blueman exo-utils gnome-power-manager gtk2-engines-xfce libexo-1-0
libexo-1-dev libexo-common libgarcon-1-0 libgarcon-1-0-dev libthunar-vfs-1-2
libthunarx-2-0 libxfce4ui-1-0 libxfce4ui-1-dev libxfce4ui-2-0
libxfce4ui-2-dev libxfce4ui-common libxfce4ui-utils libxfce4util-bin
libxfce4util-common libxfce4util-dev libxfce4util4 libxfce4util6
libxfcegui4-4 libxfcegui4-dev libxfconf-0-2 libxfconf-0-dev orage parole
ristretto squeeze thunar thunar-archive-plugin thunar-dropbox-plugin
thunar-gtkhash thunar-media-tags-plugin thunar-sendto-clamtk thunar-volman
xfburn xfce-keyboard-shortcuts xfce-theme-manager xfce4 xfce4-appfinder
xfce4-artwork xfce4-battery-plugin xfce4-clipman xfce4-clipman-plugin
xfce4-cpufreq-plugin xfce4-cpugraph-plugin xfce4-datetime-plugin
xfce4-dev-tools xfce4-dict xfce4-diskperf-plugin xfce4-embed-plugin
xfce4-equake-plugin xfce4-fsguard-plugin xfce4-genmon-plugin xfce4-goodies
xfce4-indicator-plugin xfce4-mailwatch-plugin xfce4-mixer xfce4-mount-plugin
xfce4-netload-plugin xfce4-notes xfce4-notes-plugin xfce4-notifyd
xfce4-panel xfce4-panel-dev xfce4-places-plugin xfce4-power-manager
xfce4-power-manager-data xfce4-power-manager-plugins
xfce4-quicklauncher-plugin xfce4-screenshooter xfce4-screenshooter-plugin
xfce4-sensors-plugin xfce4-session xfce4-settings xfce4-smartbookmark-plugin
xfce4-systemload-plugin xfce4-taskmanager xfce4-terminal
xfce4-time-out-plugin xfce4-timer-plugin xfce4-vala xfce4-vala-dev
xfce4-verve-plugin xfce4-volumed xfce4-wavelan-plugin xfce4-weather-plugin
xfce4-whiskermenu-plugin xfce4-xkb-plugin xfconf xfdesktop4 xfswitch-plugin
xfwm4 xfwm4-themes xubuntu-desktop
The following NEW packages will be installed:
notify-osd
The following packages will be upgraded:
libpixman-1-0 libpixman-1-dev
2 upgraded, 1 newly installed, 97 to remove and 125 not upgraded.
Need to get 675 kB of archives.
After this operation, 90.7 MB disk space will be freed.
Do you want to continue [Y/n]? n
Abort.
Agora antes você vai em frente e diga "sim" acima, observe atentamente a lista de pacotes, identifique aqueles que não deseja remover (digamos, blueman
e Thunar
) , faça uma lista. Após a conclusão da remoção, reinstale esses pacotes:
apt-get install blueman thunar
Isso é tão seguro quanto remover Xfce
e, para voltar à sua pergunta original, NÃO deve afetar uma instalação existente de Unity
. Quanto aos bits remanescentes de Xubuntu
, siga as outras respostas e avalie a remoção de cada pacote individualmente.