Greetings,

I have two computers, a desktop with Ubuntu 10.04 and a laptop with "Ubuntu" 11.10. The reasons I put quotes around "Ubuntu" regarding the laptop is because it has the following desktop environments installed:

1) Unity
2) GNOME3 Classic Fallback
3) GNOME3
4) Lubuntu/LXDE
5) Kubuntu
6) Enlightenment

It was originally a "pure" Ubuntu machine until 11.10 but I installed the other DEs when playing around to see what's available. Right now I'm using mostly KDE for actual personal use and Enlightenment for sysadmin stuff, though I do use Unity or GNOME 3 on occasion.

The machine boot splash says it's it's Ubuntu, but that's because after I installed the complete Kubuntu package I changed the splash screen back to the Ubuntu splash as I liked that splash screen better. I use GDM as the login screen as I liked that the best between KDM and LightDM.

So--when I push the "upgrade" button, what system(s) will I end up with? I supposed I could end up with Ubuntu or Kubuntu but I'm not sure. Or would I get updates for everything I have currently?? (which would be the ideal situation).

Does anyone know? Is there any way to find out? The upgrade selection box says "Welcome to Ubuntu 12.04" which makes me think it will be Ubuntu but in KDE Muon Center tells me that "A new version of Kubuntu is available".

It's sort of a theoretical question; as long as I get one DE working after the upgrade I can fix the others. In the worst case as I have /home on a separate partition I can do a clean install. But it would be nice to have everything updated.

-stewartmm

Instead of upgrading from the software centers, try from the command line , which will keep your current config, only with upgraded packages.
(iirc, it was "apt-get dist-upgrade" for Ubuntu)

Well, I did the laptop upgrade yesterday, and all the various desktop environments seem to have been upgraded, not just Ubuntu (which took 3 hours instead of the usual 2, and plus I saw libraries and programs unique to say, KDE, being downloaded). Actually I was rolled back from KDE 4.8.3 to 4.8.2, the former apparently not making it before the freeze date, but that's a simple matter to correct.

So it seems even for a heavily customized system like mine, Ubuntu will upgrade or attempt to upgrade everything.

StewartM