sudo add-apt-repository ppa:kubuntu-ppa/backports
sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get install kubuntu-desktop
选择“sddm”开机界面
sudo add-apt-repository ppa:kubuntu-ppa/backports
sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get install kubuntu-desktop
选择“sddm”开机界面