Ubuntu 使用Gnome3

#add-apt-repository ppa:gnome3-team/gnome3 
#apt-get update   
#apt-get dist-upgrade 
#apt-get install gnome-shell

卸载原代桌面系统（unity）:

#apt-get -y --auto-remove purge unity
#apt-get -y --auto-remove purge unity-common
#apt-get -y --auto-remove purge unity-lens*
#apt-get -y --auto-remove purge unity-services
#apt-get -y --auto-remove purge unity-asset-pool

设置默认:

#/usr/lib/lightdm/lightdm-set-defaults -s gnome-classic
#/usr/lib/lightdm/lightdm-set-defaults -s gnome-shell

扩展工具:

#apt-get install gnome-tweak-tool

图标主题:

# add-apt-repository ppa:tiheum/equinox
# apt-get update
# apt-get install faenza-icon-theme

要删除Gnome3,使用如下命令： 

# apt-get install ppa-purge 
# ppa-purge ppa:gnome3-team/gnome3