First, I would like to know if I can install the Cinnamon DE without messing up Ubuntu GNOME.
Second, I would like to know how to install the Cinnamon DE.
Lastly, I would like to know how I would access Cinnamon after installing.
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To Install, use:
sudo add-apt-repository ppa:embrosyn/cinnamon sudo apt update sudo apt install cinnamon blueberry
Steps to remove Cinnamon from the system:
Completely remove Cinnamon 3.0
sudo rm /etc/apt/sources.list.d/embrosyn-cinnamon*.list sudo apt purge cinnamon* libcinnamon* nemo* libnemo-extension1 cjs libcjs0e blueberry gir1.2-cinnamondesktop-3.0 gir1.2-meta-muffin-0.0 libmuffin0 muffin-common sudo apt autoremove
Purge the PPA
sudo apt install ppa-purge sudo ppa-purge ppa:embrosyn/cinnamon
In Ubuntu 16.04, Ambiance and Radiance themes have some issues in Cinnamon, like missing shadows for CSD apps.
sudo apt install numix-gtk-theme
After installtion logout and choose cinnamon desktop from login screen.