Howto: switch from Ubuntu to Kubuntu or Xubuntu or Edubuntu or vice versa (6.10 edgy

After a successful install of Kubuntu its easy to revert to Ubuntu:

    sudo apt-get install ubuntu-desktop

When it asks what dm to use; kdm or gdm; select gdm… continue…
When done its time to remove the Kubuntu packages;

   sudo apt-get remove kubuntu-desktop kubuntu-artwork-usplash

It wil remove some of the Kubuntu packages and with autoremove the rest of the Kubuntu packages kan be removed now;

sudo apt-get autoremove

When done reboot (or restart x) and you have your Ubuntu ready for usage.
Replace Kubuntu with Xubuntu;

sudo apt-get install xubuntu-desktop
Select gdm as dm
Remove Kubuntu as explained earlier

Replace Kubuntu with Edubuntu:

    sudo apt-get install edubuntu-desktop
Select gdm as dm
Remove Kubuntu as explained earlier

If you wish to keep the Kubuntu packages simply skip the remove step.
If you wish to revert from Ubuntu to Kubuntu ;

    sudo apt-get install kubuntu-desktop
Select kdm as dm
    sudo apt-get remove ubuntu-desktop
    sudo apt-get autoremove

Ubuntu to Xubuntu:

sudo apt-get install xubuntu-desktop
sudo apt-get remove xubuntu desktop
sudo apt-get autoremove

Ubuntu to Edubuntu:

  sudo apt-get install edubuntu-desktop
    sudo apt-get remove edubuntu desktop
    sudo apt-get autoremove

If you revert to Kubuntu make sure to select kdm as dm, all others require gdm.
Removal of Xubuntu:

    sudo apt-get remove xubuntu-desktop xubuntu-artwork-usplash
    sudo apt-get autoremove

or

  sudo apt-get purge xubuntu-artwork
    sudo apt-get purge xubuntu-artwork* xubuntu-default-settings*
    sudo apt-get purge xubuntu-gdm-theme xubuntu-plymouth-theme murrine-themes xubuntu-wallpapers xubuntu-icon-theme

Removal of Edubuntu:

  sudo apt-get remove edubuntu edubuntu-artwork-usplash
    sudo apt-get autoremove

Want to switch from gdm to kdm or vice versa while having both installed?

sudo dpkg-reconfigure gdm
    and select your preferred dm
    or
    sudo dpkg-reconfigure kdm
    and select your preferred dm

To get back your familiar Ubuntu usplash image and screen from kubuntu, do a:

sudo apt-get remove plymouth-theme-kubuntu-logo
sudo apt-get install plymouth-theme-ubuntu-logo
sudo update-alternatives –config  plymouth-theme-ubuntu-logo

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