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Ubuntu 15.04にPantheon Desktopをインストールする方法は？

Pantheonデスクトップ環境をインストールする方法？ のその他のソリューションはどれも、Ubuntuの古いバージョンではうまくいきませんでした。更新時に「404 not found」と表示されない唯一のppaはppa：elementary-os/dailyでしたが、（コンソールで）パッケージをインストールしないと言ったので、小学校​​デスクトップをインストールできませんでしたそれに関連する。

The following packages have unmet dependencies:
 elementary-desktop : Depends: ubuntu-extras-keyring but it is not installed
                      Recommends: apport-hooks-elementary but it is not going to be installed
                      Recommends: bluez-gstreamer but it is not going to be installed
                      Recommends: elementary-default-settings but it is not going to be installed
                      Recommends: elementary-os-prerelease but it is not going to be installed
                      Recommends: fonts-elementary-core but it is not going to be installed
                      Recommends: gcalctool but it is not going to be installed
                      Recommends: geary but it is not going to be installed
                      Recommends: ginn but it is not going to be installed
                      Recommends: gtksourceview-3.0-theme-solarized-elementary but it is not installed
                      Recommends: ibus-pinyin
                      Recommends: light-locker but it is not going to be installed
                      Recommends: pantheon-greeter but it is not going to be installed
                      Recommends: plymouth-theme-elementary but it is not going to be installed
                      Recommends: plymouth-theme-elementary-text but it is not going to be installed
                      Recommends: print-test-page-elementary but it is not installed
                      Recommends: pulseaudio-module-gconf but it is not going to be installed
                      Recommends: switchboard but it is not going to be installed
                      Recommends: switchboard-gnome-control-center-override but it is not going to be installed
                      Recommends: switchboard-plug-about but it is not going to be installed
                      Recommends: switchboard-plug-applications but it is not going to be installed
                      Recommends: switchboard-plug-datetime but it is not going to be installed
                      Recommends: switchboard-plug-display but it is not going to be installed
                      Recommends: switchboard-plug-gcc-bluetooth but it is not going to be installed
                      Recommends: switchboard-plug-gcc-color but it is not going to be installed
                      Recommends: switchboard-plug-gcc-mouse but it is not going to be installed
                      Recommends: switchboard-plug-gcc-network but it is not going to be installed
                      Recommends: switchboard-plug-gcc-printer but it is not going to be installed
                      Recommends: switchboard-plug-gcc-sound but it is not going to be installed
                      Recommends: switchboard-plug-gcc-ua but it is not going to be installed
                      Recommends: switchboard-plug-gcc-users but it is not going to be installed
                      Recommends: switchboard-plug-gcc-wacom but it is not going to be installed
                      Recommends: switchboard-plug-keyboard but it is not going to be installed
                      Recommends: switchboard-plug-locale but it is not going to be installed
                      Recommends: switchboard-plug-notifications but it is not installed
                      Recommends: switchboard-plug-online-accounts but it is not going to be installed
                      Recommends: switchboard-plug-pantheon-Shell but it is not going to be installed
                      Recommends: switchboard-plug-power but it is not going to be installed
                      Recommends: switchboard-plug-security-privacy but it is not going to be installed
                      Recommends: ttf-punjabi-fonts but it is not going to be installed
                      Recommends: tumbler-plugins-extra but it is not going to be installed
                      Recommends: user-specific-alternatives but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
15.04pantheon
3
Duarte Azevedo

次のように、システムにubuntu-extras-keyringをローカルで再構築することで、基本デスクトップをインストールできました。

mkdir somedir; cd somedir
Sudo apt-get install -y debhelper
wget http://archive.ubuntu.com/ubuntu/pool/main/u/ubuntu-extras-keyring/ubuntu-extras-keyring_2010.09.27.{tar.gz,dsc}
tar -xf *.tar.gz
cd ubuntu-extras-keyring-2010.09.17
debuild -i -us -uc -b
Sudo dpkg -i ../ubuntu-extras-keyring_2010.09.27_all.deb

その後、elementary-desktopがインストールされますが、完全なSystemD実装を持つ15.04では不要になったsystemd-shimに依存しているため、最後にエラーになります。

エラーが発生したら、実行します

Sudo dpkg --force-depends -r indicator-datetime
Sudo apt-get purge unity-control-center unity-control-center-signon

インストールが完了するはずです。

近い将来、エレメンタリーの人々はリポジトリを修正してSystemDを適切に処理することを期待しています-SystemDへのUbuntu 15.04への移行は公式リリースの数週間前に行われ、おそらくエレメンタリーの人たちはそれに適応する時間がありませんでした。

インストール後、ログアウトしてディスプレイマネージャのセッションリストに「Pantheon」を表示できますが、ログインしようとすると、青写真用紙スタイルのエレメンタリー「ベータ版壁紙」が表示されます。問題は、セッションがSlingshotとGalaを開始しますが、WingPanelまたはPlankは開始しないことです。現在、SlingshotのALT-F2ショートカットを使用してランチャーを開き、PlankとWingPanelを手動で実行しています（すべて小文字で名前を入力してEnterキーを押します）。

2
Guss