What if you like KDE? Oh well, we can't all be happy. Or can we?
The integration of KDE on Ubuntu (in fact even Kubuntu) is not exactly the most polished thing in the world (let's not mention the default wallpaper... :-) . But that can be fixed and once done doesn't seem that difficult.
The fix is made of two steps, on top of the default Ubuntu 12.04 installation:
1) Choose your KDE based applications. Remove redundant GNOME based applications
apt-get install kde-plasma-desktop khelpcenter4 kdeartwork kdeartwork-style plasma-desktopthemes-artwork kde-artwork-active kde-wallpapers kdewallpapers plasma-widgets-addons kde-l10n-pt ksnapshot gtk2-engines-oxygen gtk3-engines-oxygen libreoffice-kde kontact okular smplayer gwenview ark
apt-get remove totem empathy evince brasero evolution rhythmbox shotwell konqueror file-roller nautilus eogThis will bring you a desktop with a set of applications that work well together and nicely fit a KDE desktop.
2) Prepare the contents of .kde and install them on /etc/skel
Note: it you don't know what /etc/skel is please read a correct explanation here.
This is a surgical step that will ensure you only have to customize users once. Proceed as follows: 2.1 )backup your default .kde
cp -R .kde dot_kde2.2) Change whatever has to be changed in the GUI (menus, panels, desktop, etc) 2.3) Detect configuration file changes
diff -qr .kde dot_kde2.4) Sanitize the content of your configuration files
This not an algorithmic step but something to learn from inspection, trial and error. In the cleanup process is important to remove any references to the specific user you are logged in with (ex: references to Recent Files), and unnecessary geometry related references (ex: absolute dimensions of a panel) that should be calculated on the first login.
2.5) Install the modified files from .kde/share/config and .kde/share/apps under /etc/skel/.kde ...
2.6) Create a new user and login. If it's not as you want it go back to step 2.2)
3) Other configuration files
Follow the same logic for all other application configuration files. For example, if you use SMPlayer as a media player you may want to preconfigure it on
You may also want to configure GTK so that GTK base applications look good under KDE
/etc/skel/.gtkrc-2.0Here is an example of settings.ini
[Settings]Once done, this will make GTK based applications use a theme that somewhat matches the looks of KDE applications, unlike the default theme that doesn't look good at all under KDE.
4) Enjoy effortless KDE installations
If things went right you can now add/remove the packages and install the skel configuration files on a post-install script. The result could look like this.