由于Ubuntu的官方软件源不能及时更新到最新版本，我们推荐使用ppa的第三方源。使用方法为在终端下输入
sudo add-apt-repository ppa:shawn-p-huang/ppa
sudo apt-get update
sudo apt-get install ibus-gtk ibus-qt4 ibus-pinyin ibus-pinyin-db-open-phrase
接下来，在顶部菜单 系统 - 系统管理 - 语言支持 中，将“键盘输入方式系统”设置为ibus，然后注销重新登录。
IBus 1.3
$ sudo add-apt-repository ppa:shawn-p-huang/ppa
$ sudo apt-get update
$ sudo apt-get install ibus-gtk ibus-qt4 ibus-pinyin ibus-pinyin-db-open-phrase
or
$ sudo apt-get upgrade
$ im-switch -s ibus
Logout and re-login
IBus 1.2
* intrepid: deb http://ppa.launchpad.net/ibus-dev/ibus-1.2-intrepid/ubuntu intrepid main
* jaunty: deb http://ppa.launchpad.net/ibus-dev/ibus-1.2-jaunty/ubuntu jaunty main
* karmic: deb http://ppa.launchpad.net/ibus-dev/ibus-1.2-karmic/ubuntu karmic main
IBus 1.1
Main Page: https://launchpad.net/~ibus-dev/+archive/ppa
8.04: Hardy
not supported.
8.10 Intrepid
1. add following line to /etc/apt/sources.list,
deb http://ppa.launchpad.net/ibus-dev/ppa/ubuntu intrepid main
2. run $ sudo apt-get update,
3. run $ sudo apt-get install ibus ibus-pinyin
4. run $ im-switch -s ibus
5. logout and re-login
9.04 Jaunty
similar with 8.10, but use following line:
deb http://ppa.launchpad.net/ibus-dev/ppa/ubuntu jaunty main
9.10 Karmic
similar with 8.10, but use following line:
deb http://ppa.launchpad.net/lidaobing/ibus-910/ubuntu karmic main
