在安装中文语言包和中文输入法之前，我先配置好了pc-arm的交叉编译环境和QT，因为我要在qt中使用中文，所以不知道是否应该先把开发环境配置好再安装输入法。
1.更新源列表：
ubuntu上的软件安装都需要实时联网，所以在安装软件时都应该保持网络畅通。安装软件需要获取网络资源，这些资源的地址都存在/etc/apt/souces.list这个列表文件里，网络上的源有很多，下面我列出一些。
官方源：
# deb cdrom:[Ubuntu 12.04.2 LTS _Precise Pangolin_ - Release i386 (20130213)]/ precise main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://archive.ubuntu.com/ubuntu precise main restricted
deb-src http://archive.ubuntu.com/ubuntu precise main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://archive.ubuntu.com/ubuntu precise-updates main restricted
deb-src http://archive.ubuntu.com/ubuntu precise-updates main restricted
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://archive.ubuntu.com/ubuntu precise universe
deb-src http://archive.ubuntu.com/ubuntu precise universe
deb http://archive.ubuntu.com/ubuntu precise-updates universe
deb-src http://archive.ubuntu.com/ubuntu precise-updates universe
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://archive.ubuntu.com/ubuntu precise multiverse
deb-src http://archive.ubuntu.com/ubuntu precise multiverse
deb http://archive.ubuntu.com/ubuntu precise-updates multiverse
deb-src http://archive.ubuntu.com/ubuntu precise-updates multiverse
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://archive.ubuntu.com/ubuntu precise-backports main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu precise-backports main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu precise-security main restricted
deb-src http://archive.ubuntu.com/ubuntu precise-security main restricted
deb http://archive.ubuntu.com/ubuntu precise-security universe
deb-src http://archive.ubuntu.com/ubuntu precise-security universe
deb http://archive.ubuntu.com/ubuntu precise-security multiverse
deb-src http://archive.ubuntu.com/ubuntu precise-security multiverse
## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
deb http://archive.canonical.com/ubuntu precise partner
deb-src http://archive.canonical.com/ubuntu precise partner
## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu precise main
deb http://archive.ubuntu.com/ubuntu precise-proposed restricted main multiverse universe
deb-src http://extras.ubuntu.com/ubuntu precise main
*大学源：
#*源（推荐网通用户使用，电信PING平均响应速度41MS。强烈推荐此源，比较完整，较少出现同步问题）:
deb http://ubuntu.csie.ntu.edu.tw/ubuntu/ dapper main restricted universe multiverse
deb-src http://ubuntu.csie.ntu.edu.tw/ubuntu/ dapper main restricted universe multiverse
deb http://ubuntu.csie.ntu.edu.tw/ubuntu/ dapper-updates main restricted universe multiverse
deb-src http://ubuntu.csie.ntu.edu.tw/ubuntu/ dapper-updates main restricted universe multiverse
deb http://ubuntu.csie.ntu.edu.tw/ubuntu/ dapper-backports main restricted universe multiverse
deb-src http://ubuntu.csie.ntu.edu.tw/ubuntu/ dapper-backports main restricted universe multiverse
deb http://ubuntu.csie.ntu.edu.tw/ubuntu/ dapper-security main restricted universe multiverse
deb-src http://ubuntu.csie.ntu.edu.tw/ubuntu/ dapper-security main restricted universe multiverse
deb http://fpt.sjtu.edu.cn/ubuntu-cn/ dapper main multiverse restricted universe
网易源：
#163源:
deb http://mirrors.163.com/ubuntu/ precise main restricted
deb-src http://mirrors.163.com/ubuntu/ precise main restricted
deb http://mirrors.163.com/ubuntu/ precise-updates main restricted
deb-src http://mirrors.163.com/ubuntu/ precise-updates main restricted
deb http://mirrors.163.com/ubuntu/ precise universe
deb-src http://mirrors.163.com/ubuntu/ precise universe
deb http://mirrors.163.com/ubuntu/ precise-updates universe
deb-src http://mirrors.163.com/ubuntu/ precise-updates universe
deb http://mirrors.163.com/ubuntu/ precise multiverse
deb-src http://mirrors.163.com/ubuntu/ precise multiverse
deb http://mirrors.163.com/ubuntu/ precise-updates multiverse
deb-src http://mirrors.163.com/ubuntu/ precise-updates multiverse
deb http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ precise-security main restricted
deb-src http://mirrors.163.com/ubuntu/ precise-security main restricted
deb http://mirrors.163.com/ubuntu/ precise-security universe
deb-src http://mirrors.163.com/ubuntu/ precise-security universe
deb http://mirrors.163.com/ubuntu/ precise-security multiverse
deb-src http://mirrors.163.com/ubuntu/ precise-security multiverse
deb http://extras.ubuntu.com/ubuntu precise main
deb-src http://extras.ubuntu.com/ubuntu precise main
上海交通大学源：
#上海交通大学源:
deb http://fpt.sjtu.edu.cn/ubuntu/ dapper main multiverse restricted universe
deb http://fpt.sjtu.edu.cn/ubuntu/ dapper-updates main multiverse restricted universe
deb http://fpt.sjtu.edu.cn/ubuntu/ dapper-backports main multiverse restricted universe
deb http://fpt.sjtu.edu.cn/ubuntu/ dapper-proposed main multiverse restricted universe
deb http://fpt.sjtu.edu.cn/ubuntu/ dapper-security main multiverse restricted universe
deb http://fpt.sjtu.edu.cn/ubuntu-cn/ dapper main multiverse restricted universe
cn99源：
#ubuntu.cn99.com源（推荐）:
deb http://ubuntu.cn99.com/ubuntu/ precise main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ precise-updates main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ precise-security main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ precise-backports main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu-cn/ precise main restricted universe multiverse
我用的是官方的欧洲源，因为它是最全的，而且速度也不慢，下载速度一般在70K/S以上，如果你用官方的源下载速度很慢（更新下载的时候有可能卡在某个包不动了，没速度了，我就遇到了这个情况。我怀疑是我公司的网络问题导致的，所以总是不停的尝试重新更新，最后都成功了），可以使用其他的源，根据自己的情况选择。
然后就要更新源列表了。
#sudo apt-get update
2.安装中文语言包：
点击右上角齿轮状的按钮，或者打开Dash home搜索，找到System Settings->Language Support，然后它会自动检查更新（等它更新完，我刚开始就直接把它关掉了，结果中文输入法怎么都装不上），更新完以后，点击Install/Remove Languages...，选上Chinese(Simplified)，点击Aplly，然后它就会自动下载安装了（如果下载卡住了，没速度了，关了重新打开接着下）。
安装完了之后发现“汉语（中国）”还是黑的呢！别急，只需要按住鼠标把它拖到最上边就可以了，OK，Close，ReStart（重启系统）！
3.删除所有输入法：
我是怕输入法太多而引起冲突，而且我也不喜欢有几个输入法，看着烦，就增加了这步。
我是手动找到/etc/X11/xinit/xinput.d这个文件夹，删除前先备份（养成好习惯），删除除all_ALL，none以外的所有文件。
4.安装ibus输入法框架及汉语拼音：
打开终端，安装ibus，拼音，五笔
# sudo apt-get install ibus ibus-clutter ibus-gtk ibus-gtk3 ibus-qt4
# sudo apt-get install ibus-pinyin
# sudo apt-get install ibus-table-wubi
然后设置输入法
ibus-setup
Input Method选项卡中，选中Customize active input methods，Select an input method->Pinyin，Add。
至此中文输入法就装完了。
如需转载请注明出处：http://blog.csdn.net/klo220/article/details/18708985