以下是我自己实践得到的，不一定正确，仅供自己学习备份。
1. 通过命令行方式，直接添加PPA到software sources ，同时，把key也获取到。
deb http://ppa.launchpad.net/team-xbmc-svn/ppa/ubuntu lucid main。
该PPA page原文如下：
################################################################################
Technical details about this PPA
This PPA can be added to your system manually by copying the lines below and adding them to your system's software sources.
Display sources.list entries for: Lucid (10.04) Karmic (9.10) Jaunty (9.04) Hardy (8.04)
deb http://ppa.launchpad.net/team-xbmc-svn/ppa/ubuntu lucid main deb-src http://ppa.launchpad.net/team-xbmc-svn/ppa/ubuntu lucid main
1024R/64234534(
What is this?)
Fingerprint:
A292248FCB9CFB8689A30B7A2BBD133164234534
Dependencies:
- XBMC Build Dependencies PPA (included on 2010-08-09)
- ######################################################
只需执行一条命令#sudo add-apt-repository ppa:team-xbmc-svn/ppa
64234534也导入了。
For questions and bugs with software in this PPA please contact XBMC SVN BUILDING.
