安裝 libgirepository-1.0-1:i386 會導致奇怪的情況

安裝 libgirepository-1.0-1:i386 會導致奇怪的情況

這個 apt-get 交換讓我很困惑(在 64 位元 CPU 上):

$ lsb_release -a                                                                                                                                                                       
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04.2 LTS
Release:        14.04
Codename:       trusty

運行命令時出現以下輸出:

$ sudo apt-get install libgirepository-1.0-1:i386

Following packages have been installed and are no longer necessary:
  app-install-data-partner cdrdao fonts-lao 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-compressed-ppds gir1.2-dbusmenu-glib-0.4
  gir1.2-javascriptcoregtk-3.0 gnome-icon-theme gnome-icon-theme-symbolic
  gstreamer1.0-clutter humanity-icon-theme indicator-application kdesudo
  kubuntu-notification-helper libao-common libao4 libappindicator1
  libappindicator3-1 libcairo-script-interpreter2 libcairo2-dev
  libclutter-1.0-0 libclutter-1.0-common libclutter-gst-2.0-0
  libclutter-gtk-1.0-0 libcogl-common libcogl-pango15 libcogl15
  libdbusmenu-gtk3-4 libfontconfig1-dev libfreetype6-dev libgmime-2.6-0
  libharfbuzz-dev libharfbuzz-gobject0 libindicator3-7 libindicator7
  libjson-glib-1.0-0 libjson-glib-1.0-common libnautilus-extension1a
  libpeas-common libperl4-corelibs-perl libpixman-1-dev libpng12-dev
  libtotem-plparser18 libxcb-shm0-dev libxcomposite-dev libxft-dev
  libzeitgeist-2.0-0 printer-driver-min12xxw python-defer python3-pykde4
  syslinux-legacy ubuntu-extras-keyring ubuntu-release-upgrader-qt
  x11proto-composite-dev
  ...
Following packages will be REMOVED:
  aptdaemon apturl-kde gir1.2-atk-1.0 gir1.2-dee-1.0 gir1.2-freedesktop
  gir1.2-gdkpixbuf-2.0 gir1.2-glib-2.0 gir1.2-gst-plugins-base-0.10
  gir1.2-gstreamer-0.10 gir1.2-gtk-2.0 gir1.2-gtk-3.0 gir1.2-pango-1.0
  gir1.2-peas-1.0 gir1.2-soup-2.4 gir1.2-totem-1.0 gir1.2-totem-plparser-1.0
  gir1.2-udisks-2.0 gir1.2-unity-5.0 gir1.2-vte-2.90 gir1.2-webkit-3.0
  kubuntu-desktop libatk1.0-dev libgdk-pixbuf2.0-dev libgirepository-1.0-1
  libgtk2.0-dev libgtkglext1-dev libmuonprivate2 libpango1.0-dev
  libpangox-1.0-dev libpeas-1.0-0 libtotem0 muon muon-discover muon-notifier
  muon-updater python-appindicator python-aptdaemon
  python-aptdaemon.gtk3widgets python-gi python-gi-cairo python-gobject
  python-gst0.10 python-indicate python3-aptdaemon
  python3-aptdaemon.gtk3widgets python3-gi software-properties-common
  software-properties-gtk software-properties-kde totem totem-mozilla
  totem-plugins ubuntu-release-upgrader-gtk update-manager update-notifier
  usb-creator-common
Following NEW packages will be installed:
  libgirepository-1.0-1:i386   

我的問題有兩個。

  1. 為什麼 apt-get 認為它應該刪除這麼多軟體包?我根本沒有告訴它移除圖騰。
  2. 下次apt-get出現像上面這樣的非常奇怪的情況時,我怎麼能自己弄清楚為什麼 apt-get 看起來表現得如此奇怪?

答案1

首先你應該知道這不是一個奇怪的動作,這是完全正確的並且你有些要求這個動作!

那為什麼會發生這種情況呢?

你要安裝libgirepository-1.0-1:i386,但你已經有這個 libgirepository-1.0-164位元版本,所以這裡系統要求你用這個32位元來取代64位元。

此替換會產生一些後果,如果您選擇替換這意味著系統將刪除libgirepository-1.0-1並安裝32 位,因此當此lib 套件將被刪除時,系統將刪除依賴它的其他應用程序,因為這些應用程式將不再可用如果這個庫被刪除。

例如為什麼totem會被移除,我們看看totem依賴

$ apt-cache rdepends totem 
totem
Reverse Depends:
  totem:i386
  totem:i386
  libtotem0:i386
  libtotem-dev:i386
  gnome-settings-daemon:i386
  totem-plugins-extra
  ubuntu-desktop
  totem-plugins
  totem-mozilla
  totem-dbg
  totem
 |nautilus
  libtotem0
  libtotem-dev
  gnome-settings-daemon
  totem:i386
  totem:i386
  libtotem0:i386
  libtotem-dev:i386
  gnome-settings-daemon:i386
  ubuntustudio-desktop
  ubuntu-sugar-remix
 |tunapie
  totem-plugins-extra
  totem-plugins-dvb-daemon
  totem-plugin-arte
  totem-plugin-arte
  streamtuner2
  remuco-totem
  gnome-core
  ezgo-multimedia
  bombono-dvd
  ubuntu-desktop
  totem-plugins
  totem-mozilla
  totem-dbg
  totem
 |nautilus
  libtotem0
  libtotem-dev
  gnome-settings-daemon

正如您在上面看到的,totem 依賴libtotem0和許多其他軟體包,但是讓我們以這個軟體包為例,現在如果您檢查 的依賴項,libgirepository-1.0-1將會顯示您還有libtotem0許多其他軟體包,所以為了解釋這個範例,如果您刪除libgirepository-1.0-1並想要安裝32 位元然後您需要刪除libtotem0安裝它的 32 位元也與 32 位元相容libgirepository-1.0-1,儘管您要刪除圖騰(即使您不是故意的)。

希望事情現在變得清楚

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