我有一台旧的（2005 年）iMac G5，配有 PowerPC 处理器。它目前运行 MacOSX 和 Ubuntu 12.04。我相信我使用的引导加载程序是 yaboot。无论如何，Ubuntu 12.04 运行速度非常慢，所以我安装了 LXDE 桌面。我真的很喜欢它，并且想完全擦除我的 Ubuntu 分区并将其替换为 Lubuntu，而不会影响我的 MacOSX 分区。有办法做到这一点吗？
答案1
您不需要这样做。在 LDXE 中，使用 Synaptic 并确保已lubuntu-desktop完全安装。然后，卸载ubuntu-desktop并ubuntu-netbook。您现在（实际上）拥有一个 Lubuntu 系统。
编辑：我看到了你的评论，我需要看到你需要删除gnome它的所有依赖项（删除包时自动完成）
根据 Elijah Kagan 的评论进行第 3 次编辑：
您可能想要运行：
sudo apt-get remove acpi-support acpid activity-log-manager-common activity-log-manager-control-center adium-theme-ubuntu aisleriot apg app-install-data-partner appmenu-gtk appmenu-gtk3 appmenu-qt apt-xapian-index apturl apturl-common at-spi2-core avahi-autoipd avahi-daemon bamfdaemon baobab binutils bluez-alsa bluez-cups bluez-gstreamer branding-ubuntu brasero brasero-cdrkit brasero-common brltty checkbox checkbox-qt cmap-adobe-japan2 colord compiz compiz-core compiz-gnome compiz-plugins-default compiz-plugins-main-default compizconfig-backend-gconf cups-bsd dc deja-dup doc-base duplicity dvd+rw-tools empathy empathy-common eog espeak espeak-data evolution-data-server evolution-data-server-common example-content firefox firefox-globalmenu firefox-gnome-support folks-common fonts-kacst fonts-kacst-one fonts-khmeros-core fonts-lao fonts-opensymbol fonts-takao-pgothic fonts-thai-tlwg fonts-tlwg-garuda fonts-tlwg-kinnari fonts-tlwg-loma fonts-tlwg-mono fonts-tlwg-norasi fonts-tlwg-purisa fonts-tlwg-sawasdee fonts-tlwg-typewriter fonts-tlwg-typist fonts-tlwg-typo fonts-tlwg-umpush fonts-tlwg-waree foomatic-db-engine gcalctool gcc gcc-4.6 gedit gedit-common geoclue geoclue-ubuntu-geoip ginn gir1.2-atspi-2.0 gir1.2-dbusmenu-glib-0.4 gir1.2-dee-1.0 gir1.2-gmenu-3.0 gir1.2-gnomebluetooth-1.0 gir1.2-gnomekeyring-1.0 gir1.2-gst-plugins-base-0.10 gir1.2-gstreamer-0.10 gir1.2-gtksource-3.0 gir1.2-gudev-1.0 gir1.2-indicate-0.7 gir1.2-javascriptcoregtk-3.0 gir1.2-launchpad-integration-3.0 gir1.2-peas-1.0 gir1.2-rb-3.0 gir1.2-soup-2.4 gir1.2-totem-1.0 gir1.2-totem-plparser-1.0 gir1.2-ubuntuoneui-3.0 gir1.2-unity-5.0 gir1.2-webkit-3.0 gir1.2-wnck-3.0 gnome-accessibility-themes gnome-bluetooth gnome-control-center gnome-control-center-data gnome-desktop3-data gnome-font-viewer gnome-games-data gnome-icon-theme-symbolic gnome-media gnome-menus gnome-nettool gnome-online-accounts gnome-orca gnome-power-manager gnome-screensaver gnome-screenshot gnome-session gnome-session-bin gnome-session-canberra gnome-session-common gnome-settings-daemon gnome-sudoku gnome-system-log gnome-system-monitor gnome-terminal gnome-terminal-data gnome-user-guide gnome-user-share gnomine growisofs gstreamer0.10-alsa gstreamer0.10-gconf gstreamer0.10-plugins-base-apps gstreamer0.10-pulseaudio gstreamer0.10-tools gstreamer0.10-x guile-1.8-libs gvfs-bin gwibber gwibber-service gwibber-service-facebook gwibber-service-identica gwibber-service-twitter hplip hplip-data hwdata ibus-gtk3 ibus-pinyin ibus-pinyin-db-android ibus-pinyin-db-open-phrase ibus-table indicator-application indicator-appmenu indicator-datetime indicator-messages indicator-power indicator-printers indicator-session indicator-sound indicator-status-provider-mc5 intel-gpu-tools kerneloops-daemon landscape-client-ui-install laptop-detect launchpad-integration libart-2.0-2 libasound2-plugins libatk-adaptor libatk-adaptor-schemas libatkmm-1.6-1 libatspi2.0-0 libavahi-core7 libavahi-gobject0 libbamf0 libbamf3-0 libboost-serialization1.46.1 libbrasero-media3-1 libbrlapi0.5 libc-dev-bin libc6-dev libcairo-perl libcairomm-1.0-1 libcamel-1.2-29 libcanberra-gtk-module libcanberra-gtk0 libcanberra-pulse libcmis-0.2-0 libcolord1 libcompizconfig0 libcrypt-passwdmd5-perl libcupsdriver1 libcurl3 libcurl3-nss libdaemon0 libdbusmenu-gtk4 libdbusmenu-qt2 libdconf-dbus-1-0 libdconf-qt0 libdecoration0 libdee-1.0-4 libdmapsharing-3.0-2 libdotconf1.0 libebackend-1.2-1 libebook-1.2-12 libecal-1.2-10 libedata-book-1.2-11 libedata-cal-1.2-13 libedataserver-1.2-15 libedataserverui-3.0-1 libespeak1 libexempi3 libexiv2-11 libexttextcat-data libexttextcat0 libfile-copy-recursive-perl libfolks-eds25 libfolks-telepathy25 libfolks25 libfreerdp-plugins-standard libfreerdp1 libgail-common libgdata-common libgdata13 libgee2 libgexiv2-1 libglew1.6 libglewmx1.6 libglib-perl libglibmm-2.4-1c2a libgmime-2.6-0 libgnome-control-center1 libgnome-desktop-3-2 libgnome-media-profiles-3.0-0 libgnome-menu-3-0 libgnome-menu2 libgnome2-common libgnomekbd-common libgnomekbd7 libgoa-1.0-0 libgoa-1.0-common libgomp1 libgtk2-perl libgtkmm-3.0-1 libgtksourceview-3.0-0 libgtksourceview-3.0-common libgtkspell-3-0 libgweather-3-0 libgweather-common libgwibber-gtk2 libgwibber2 libhpmud0 libhyphen0 libidl-common libidl0 libido3-0.1-0 libindicate-gtk3 libindicate5 libindicator-messages-status-provider1 libjavascriptcoregtk-3.0-0 libjson-glib-1.0-0 liblcms1 liblouis-data liblouis2 liblua5.1-0 libmetacity-private0 libmission-control-plugins0 libmng1 libmysqlclient18 libmythes-1.2-0 libnotify-bin libnss-mdns libnux-2.0-0 libnux-2.0-common liboauth0 libopencc1 liborbit2 liboverlay-scrollbar-0.2-0 liboverlay-scrollbar3-0.2-0 libpackagekit-glib2-14 libpam-gnome-keyring libpango-perl libpangomm-1.4-1 libpeas-1.0-0 libpeas-common libprotobuf7 libprotoc7 libproxy1-plugin-gsettings libproxy1-plugin-networkmanager libpulsedsp libqt4-dbus libqt4-declarative libqt4-network libqt4-opengl libqt4-script libqt4-sql libqt4-sql-mysql libqt4-sql-sqlite libqt4-svg libqt4-xml libqt4-xmlpatterns libqtbamf1 libqtcore4 libqtdee2 libqtgconf1 libqtgui4 libquadmath0 libquvi-scripts libquvi7 libraw5 libreoffice-base-core libreoffice-calc libreoffice-common libreoffice-core libreoffice-draw libreoffice-emailmerge libreoffice-gnome libreoffice-gtk libreoffice-help-en-us libreoffice-impress libreoffice-math libreoffice-style-human libreoffice-style-tango libreoffice-writer librest-0.7-0 librhythmbox-core5 librsync1 libsane-hpaio libsensors4 libsigc++-2.0-0c2a libsnmp-base libsnmp15 libsonic0 libspeechd2 libspeexdsp1 libssh-4 libstlport4.6ldbl libsyncdaemon-1.0-1 libtelepathy-farstream2 libtelepathy-logger2 libtimezonemap1 libtotem-plparser17 libtotem0 libubuntuoneui-3.0-1 libunity-2d-private0 libunity-core-5.0-5 libunity-misc4 libunity9 libutempter0 libuuid-perl libvncserver0 libwacom-common libwacom2 libwebkitgtk-3.0-0 libwebkitgtk-3.0-common libwmf0.2-7-gtk libwnck-3-0 libwnck-3-common libyaml-tiny-perl libyelp0 libzeitgeist-1.0-1 light-themes linux-headers-3.2.0-24 linux-headers-3.2.0-24-generic-pae linux-headers-generic-pae linux-libc-dev mahjongg make manpages-dev media-player-info metacity metacity-common mousetweaks mscompress mtools mysql-common nautilus nautilus-sendto nautilus-sendto-empathy nautilus-share network-manager-pptp network-manager-pptp-gnome notify-osd notify-osd-icons nux-tools obexd-client onboard oneconf overlay-scrollbar pcmciautils pinyin-database pkg-config plymouth-theme-ubuntu-logo policykit-desktop-privileges pptp-linux printer-driver-c2esp printer-driver-foo2zjs printer-driver-hpcups printer-driver-min12xxw printer-driver-ptouch printer-driver-pxljr printer-driver-sag-gdi printer-driver-splix protobuf-compiler pulseaudio pulseaudio-module-bluetooth pulseaudio-module-gconf pulseaudio-module-x11 pulseaudio-utils python-aptdaemon.pkcompat python-brlapi python-configglue python-dateutil python-debtagshw python-dirspec python-egenix-mxdatetime python-egenix-mxtools python-gconf python-gi-cairo python-gst0.10 python-imaging python-libproxy python-louis python-mako python-markupsafe python-openssl python-packagekit python-pam python-pexpect python-piston-mini-client python-protobuf python-pyatspi2 python-pyinotify python-renderpm python-reportlab python-reportlab-accel python-serial python-speechd python-twisted-bin python-twisted-core python-twisted-names python-twisted-web python-ubuntu-sso-client python-ubuntuone-client python-ubuntuone-control-panel python-ubuntuone-storageprotocol python-uno python-virtkey python-xapian python-zeitgeist qdbus qt-at-spi radeontool remmina remmina-common remmina-plugin-rdp remmina-plugin-vnc rhythmbox rhythmbox-data rhythmbox-mozilla rhythmbox-plugin-cdrecorder rhythmbox-plugin-magnatune rhythmbox-plugin-zeitgeist rhythmbox-plugins rhythmbox-ubuntuone rtkit samba-common samba-common-bin sane-utils seahorse sessioninstaller shotwell sni-qt software-center software-center-aptdaemon-plugins speech-dispatcher ssh-askpass-gnome syslinux syslinux-common syslinux-legacy telepathy-gabble telepathy-haze telepathy-idle telepathy-indicator telepathy-logger telepathy-mission-control-5 telepathy-salut thunderbird thunderbird-globalmenu thunderbird-gnome-support toshset totem totem-common totem-mozilla totem-plugins ttf-indic-fonts-core ttf-punjabi-fonts ubuntu-artwork ubuntu-desktop ubuntu-docs ubuntu-mono ubuntu-sounds ubuntu-sso-client ubuntu-sso-client-gtk ubuntu-system-service ubuntu-wallpapers ubuntu-wallpapers-precise ubuntuone-client ubuntuone-client-gnome ubuntuone-control-panel ubuntuone-couch ubuntuone-installer unity unity-2d unity-2d-common unity-2d-panel unity-2d-shell unity-2d-spread unity-asset-pool unity-common unity-greeter unity-lens-applications unity-lens-files unity-lens-music unity-lens-video unity-scope-musicstores unity-scope-video-remote unity-services uno-libs3 update-inetd ure usb-creator-common usb-creator-gtk vino whois whoopsie wodim xbitmaps xcursor-themes xdg-user-dirs-gtk xdiagnose xfonts-mathml xterm xul-ext-ubufox yelp yelp-xsl zeitgeist zeitgeist-core zeitgeist-datahub zenity zenity-common && sudo apt-get install lubuntu-desktop ubuntu-minimal && sudo /usr/lib/lightdm/lightdm-set-defaults -g lightdm-gtk-greeter
删除 Ubuntu，但请确保已安装 LDXE...