如何在Ubuntu 15.04上安装万神殿桌面？

Question

是的，如何安装万神殿桌面环境？中针对旧版本的Ubuntu的其他解决方案都没有奏效。唯一在更新时不会说"404 not“的ppa是ppa: but os/ say，但我无法安装基本桌面，因为它只是说(在控制台中)它不会安装与它相关的软件包。

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.  

Answer 1

我已经通过在我的系统上本地重建ubuntu额外的键环来安装基本的桌面，如下所示：

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

在此之后，elementary-desktop将安装，但最终会出错，因为它依赖于不再需要或不需要的systemd-shim，而15.04有一个完整的SystemD实现。

当它出错时，运行

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

它应该能完成安装。

我预计在不久的将来，初等学生将修复他们的存储库来正确地处理SystemD --Ubuntu15.04迁移到SystemD是在正式发布前几周完成的，而且初级人员可能没有时间去适应这一点。

安装后，您可以登录并在显示管理器的会话列表中看到"Pantheon“，但是如果您尝试登录，您只会得到基本的"beta壁纸”样式的蓝图纸。问题是会话开始于Slingshot和Gala，而不是WingPanel或Plank。目前，我正在使用ALT-F2快捷方式打开发射器并手动运行Plank和WingPanel (只需输入所有小写字母并按ENTER键)。