清除了未使用的调制解调器 + 打印机 + 蓝牙驱动程序，现在 APT 显示“一半的系统不再需要”
但是删除它们会破坏我的操作系统。你该怎么做才能解决这个问题？我该如何重新安装这些据称依赖的软件包？
2048-qt alsa-base appstream apt-config-图标 apt-config-图标-hidpi apt-config-图标-large apt-config-图标-large-hidpi apt-xapian-index arc-theme avahi-utils bolt breeze-cursor-theme compton compton-conf compton-conf-l10n cups-pk-helper dc debconf-kde-data dns-root-data dnsmasq-base efibootmgr fcitx fcitx-bin fcitx-config-common fcitx-config-gtk fcitx-data fcitx-frontend-all fcitx-frontend-gtk2 fcitx-frontend-gtk3 fcitx-frontend-qt4 fcitx-frontend-qt5 fcitx-module-dbus fcitx-module-kimpanel fcitx-module-lua fcitx-module-x11 fcitx-模块 fcitx-ui-classic fcitx-ui-qimpanel fcitx5-模块-quickphrase-editor fonts-freefont-ttf fonts-kacst fonts-kacst-one fonts-khmeros-core fonts-lao fonts-lklug-sinhala fonts-noto-cjk fonts-sil-abyssinica fonts-sil-padauk fonts-symbola fonts-thai-tlwg fonts-tibetan-machine 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字体-tlwg-mono-ttf 字体-tlwg-norasi 字体-tlwg-norasi-ttf 字体-tlwg-purisa 字体-tlwg-purisa-ttf 字体-tlwg-sawasdee 字体-tlwg-sawasdee-ttf 字体-tlwg-typewriter 字体-tlwg-typewriter-ttf 字体-tlwg-typist 字体-tlwg-typist-ttf 字体-tlwg-typo 字体-tlwg-typo-ttf 字体-tlwg-umpush 字体-tlwg-umpush-ttf 字体-tlwg-waree 字体-tlwg-waree-ttf fwupd fwupd-signed fwupdate gir1.2-nm-1.0 gir1.2-notify-0.7 gir1.2-packagekitglib-1.0 gir1.2-polkit-1.0 gir1.2-secret-1 gir1.2-udisks-2.0 gnome-accessibility-themes gnome-themes-extra gnome-themes-extra-data gtk2-engines-murrine gtk2-engines-pixbuf haveged hplip-data htop iio-sensor-proxy inputattach kactivities-bin kactivitymanagerd kcalc kde-cli-tools kde-cli-tools-data kde-style-breeze kerneloops laptop-detect libappstream-glib8 libappstream4 libappstreamqt2 libcdr-0.1-1 libcolamd2 libconfig9 libdebconf-kde1 libdrm-dev libefiboot1 libegl1-mesa-dev libfcitx-config4 libfcitx-core0 libfcitx-gclient1 libfcitx-qt5-1 libfcitx-qt5-数据 libfcitx-utils0 libfreehand-0.1-1 libfwup1 libfwupd2 libgcab-1.0-0 libgettextpo0 libgl1-mesa-dev libgles1 libgles2-mesa-dev libglib2.0-dev libglib2.0-dev-bin libglu1-mesa-dev libglvnd-core-dev libglvnd-dev libhavege1 libhpmud0 libkf5activities5 libkf5bluezqt-数据 libkf5bluezqt6 libkf5calendarevents5 libkf5networkmanagerqt-dev libkf5networkmanagerqt-doc libkf5networkmanagerqt6 libkf5plasma5 libkf5plasmaquick5 libkf5sane-数据 libkf5sane5 libkf5style5 libkf5su-bin libkf5su-数据 libkf5su5 libkworkspace5-5 libmbim-glib4 libmbim-proxy libmimetic0v5 libminiupnpc17 libminizip1 libmspub-0.1-1 libmysqlclient20 libnatpmp1 libndp0 libnm-dev libnm0 libopengl0 libpackagekit-glib2-18 libpackagekitqt5-1 libpagemaker-0。0-0 libpcre16-3 libpcre3-dev libpcre32-3 libpcrecpp0v5 libpresage-data libpresage1v5 libpthread-stubs0-dev libqapt3 libqapt3-runtime libqca-qt5-2 libqca-qt5-2-plugins libqgpgme7 libqmi-glib5 libqmi-proxy libqrencode3 libqt4-dbus libqt4-declarative libqt4-network libqt4-script libqt4-sql libqt4-sql-mysql libqt4-xml libqt4-xmlpatterns libqt5concurrent5 libqt5designer5 libqt5help5 libqt5keychain1 libqt5opengl5-dev libqt5positioning5 libqt5sensors5 libqt5webchannel5 libqt5webengine-data libqt5webenginecore5 libqt5webenginewidgets5 libqt5webkit5 libqtcore4 libqtdbus4 libqtgui4 libre2-4 libreoffice-avmedia-backend-gstreamer libreoffice-calc libreoffice-draw libreoffice-gtk3 libreoffice-impress libreoffice-kde5 libsane-hpaio libsmbios-c2 libsnapd-qt1 libspectre1 libstemmer0d libsuitesparseconfig5 libsynctex2 libteamdctl0 libtinyxml2.6.2v5 libu2f-udev libuniconf4.6 libvisio-0.1-1 libvncclient1 libwayland-bin libwayland-dev libwhoopsie0 libwvstreams4.6-base libwvstreams4.6-extras libx11-dev libx11-xcb-dev libxapian30 libxau-dev libxcb-composite0 libxcb-damage0 libxcb-dri2-0-dev libxcb-dri3-dev libxcb-glx0-dev libxcb-present-dev libxcb-randr0-dev libxcb-render0-dev libxcb-shape0-dev libxcb-sync-dev libxcb-xfixes0-dev libxcb1-dev libxdamage-dev libxdmcp-dev libxext-dev libxfixes-dev libxshmfence-dev libxxf86vm-dev linux-sound-base lp-solve lubuntu-artwork lubuntu-default-settings lxqt-admin lxqt-admin-l10n memtest86+ mesa-common-dev mobile-broadband-provider-info mscompress mtools muon mysql-common neofetch nm-tray noblenote ofono packagekit packagekit-tools pass pastebinit pcmciautils pkg-config plasma-discover plasma-discover-common plasma-discover-snap-backend plasma-framework policykit-desktop-privileges polkit-kde-agent-1 ppp pptp-linux presage pwgen python3-cairo python3-cups python3-cupshelpers python3-dbus.mainloop。pyqt5 python3-debian python3-distutils python3-lib2to3 python3-olefile python3-pexpect python3-pil python3-ptyprocess python3-pyqt5 python3-renderpm python3-reportlab python3-reportlab-accel python3-sip python3-software-properties python3-xapian python3-xkit qapt-batch qdbus qml-module-org-kde-bluezqt qml-module-org-kde-kconfig qml-module-org-kde-kcoreaddons qml-module-org-kde-kio qml-module-org-kde-kquickcontrols qml-module-org-kde-qqc2desktopstyle qml-module-qtquick-controls qml-module-qtquick-dialogs qml-module-qtquick-layouts qml-module-qtquick-privatewidgets qpdfview qpdfview-djvu-plugin qpdfview-ps-plugin qpdfview-translations qrencode qt-at-spi qt5-qmake qt5-qmake-bin qtbase5-dev qtbase5-dev-tools qtchooser qtcore4-l10n qtpass quassel quassel-data rfkill sbsigntool sddm sddm-theme-lubuntu secureboot-db skanlite 软件属性-通用 软件属性-qt spice-vdagent syslinux syslinux-common syslinux-legacy transmission-common transmission-qt tree trojita trojita-data trojita-l10n ttf-ancient-fonts-symbola ttf-ubuntu-字体系列 ubuntu-驱动程序-通用 ubuntu-发布-升级版-qt ubuntu-报告 usb-creator-通用 usb-creator-kde usb-模式切换 usb-模式切换数据 vlc vlc-bin vlc-l10n vlc-插件-访问-额外 vlc-插件-通知 vlc-插件-qt vlc-插件-samba vlc-插件-skins2 vlc-插件-svg vlc-插件-视频拆分器 vlc-插件-可视化 whoopsie wvdial x11-apps x11-session-utils x11proto-core-dev x11proto-damage-dev x11proto-dev x11proto-fixes-dev x11proto-xext-dev x11proto-xf86vidmode-dev xbitmaps xclip xdg-桌面门户-kde xinit xorg xorg-sgml-doctools xtrans-dev zlib1g-dev zsync
答案1
好的，幸运的是我使用的 Lubuntu 中的包管理器（称为 Muon 包管理器）有一个已卸载包及其依赖项的历史列表；（包括通过命令行或 muon 删除的包）它显示清除蓝牙和打印机驱动程序导致卸载“lubuntu-desktop”，清除调制解调器驱动程序导致清除“network-manager”，这说明我的网络管理器也坏了。
与 muon 软件包管理器相当的可能是 synaptic 软件包管理器，希望它能为您提供相同的历史记录。我不得不手动浏览列表并安装缺少的软件包。
重新安装“lubuntu-desktop”后，apt 给了我这个（蓝色与蓝牙相关）：
The following additional packages will be installed:
bluedevil bluez bluez-cups foomatic-db-compressed-ppds libgutenprint-common libgutenprint9 libkpmcore7 openprinting-ppds
partitionmanager printer-driver-brlaser printer-driver-c2esp printer-driver-foo2zjs printer-driver-foo2zjs-common
printer-driver-gutenprint printer-driver-m2300w printer-driver-min12xxw printer-driver-pnm2ppa printer-driver-ptouch
printer-driver-pxljr printer-driver-sag-gdi printer-driver-splix pulseaudio-module-bluetooth
Suggested packages:
hplip-cups printer-driver-all gutenprint-locales hpijs-ppds hfsplus hfsutils reiser4progs psutils hannah-foo2zjs tix tk
gutenprint-doc magicfilter | apsfilter
The following NEW packages will be installed:
bluedevil bluez bluez-cups foomatic-db-compressed-ppds libgutenprint-common libgutenprint9 libkpmcore7 lubuntu-desktop
openprinting-ppds partitionmanager printer-driver-brlaser printer-driver-c2esp printer-driver-foo2zjs
printer-driver-foo2zjs-common printer-driver-gutenprint printer-driver-m2300w printer-driver-min12xxw
printer-driver-pnm2ppa printer-driver-ptouch printer-driver-pxljr printer-driver-sag-gdi printer-driver-splix
pulseaudio-module-bluetooth
现在我不再需要的软件包列表已经缩减到只剩 9 个了；