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Accidentally installed Lubuntu and want to revert to Ubuntu

rated 0 times [ 2] [ 0] / answers: 1 / hits: 1405 / 3 Years ago, mon, july 19, 2021, 7:25:55

I am using Ubuntu 14.04.1 which is a fresh install of about one month old.

I was trying to get 5.1 surround audio to work so I followed the instructions here which suggested the following commands:

sudo apt-get remove –purge alsa-base pulseaudio

sudo apt-get install alsa-base pulseaudio

sudo alsa force-reload

At the time I wasn't paying much attention and there was a message saying the following packages would be removed:

alsa-base* indicator-sound* libcanberra-pulse* pulseaudio* pulseaudio-module-bluetooth* pulseaudio-module-x11* ubuntu-desktop* unity-control-center* unity-control-center-signon* webaccounts-extension-common* xul-ext-webaccounts*

...which I went ahead with because I had no reason to think anything would go wrong. Afterwards, however, I noticed that the Systems Settings dialog looked different (kind of gnome-y) and had only a few icons listed.

I tried to reverse the process by using apt-get install copying and pasting after all the above packages that I was told would be removed. However, this resulted in seemingly quite a large number of additional packages being installed which process took about 5-10 minutes to complete.

Now, when I restart my system, the shut down screen says "Shutting down Lubuntu", the grub screen is black instead of the old orange-brown, the system log in screen is totally different, and the dash bar has changed colour and appearance to brown with a different style Ubuntu logo than the one I had before (I think it is the Edubuntu logo). Besides that, everything else still seems to work.

Somewhere among all the packages that were installed it seems Lubuntu and/or Edubuntu and related packages have been installed.

I don't want Lubuntu, Edubuntu or any unnecessary additional packages associated with the above installation process. How can I remove Lubuntu / Edubuntu and revert to the Ubuntu system I had before?

An explanation of how these other packages got installed from the above commands would also be a bonus.

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armis

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answered 3 Years ago velelf · Accepted Answer

The command apt-get install ubuntu-desktop* uses a regex expression that matches and causes all flavours of Ubuntu (Kubuntu, Edubuntu, Xubuntu, and Lubuntu) to be installed. Lubuntu was configured to be the active one which explains the appearance of Lubuntu artwork, packages & text.

The following commands removes the Ubuntu flavour packages and configuration files:

sudo apt-get remove --purge kubuntu*

sudo apt-get remove --purge edubuntu*

sudo apt-get remove --purge xubuntu*

sudo apt-get remove --purge lubuntu*

(This should be followed by sudo apt-get autoremove to remove any other packages that are no longer needed.)

Then to return the original unity greeter and lock screen (which had been changed) I used the command sudo apt-get install --reinstall unity

After this, the system reverted to the original Ubuntu and Unity.

Finally, I used the Unity Tweak Tool package (unity-tweak-tool) to tweak some of the Dash appearance settings to get it back to exactly how it was before.