我的源是安装的时候，就带的。 贴上来请大家看看，是不是有问题
# deb cdrom:[Ubuntu 9.04 _Jaunty Jackalope_ - Release amd64 (20090420.1)]/ jaunty main restricted
# See
http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb
http://cn.archive.ubuntu.com/ubuntu/ jaunty main restricted
deb-src
http://cn.archive.ubuntu.com/ubuntu/ jaunty main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb
http://cn.archive.ubuntu.com/ubuntu/ jaunty-updates main restricted
deb-src
http://cn.archive.ubuntu.com/ubuntu/ jaunty-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://cn.archive.ubuntu.com/ubuntu/ jaunty universe
deb-src
http://cn.archive.ubuntu.com/ubuntu/ jaunty universe
deb
http://cn.archive.ubuntu.com/ubuntu/ jaunty-updates universe
deb-src
http://cn.archive.ubuntu.com/ubuntu/ jaunty-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://cn.archive.ubuntu.com/ubuntu/ jaunty multiverse
deb-src
http://cn.archive.ubuntu.com/ubuntu/ jaunty multiverse
deb
http://cn.archive.ubuntu.com/ubuntu/ jaunty-updates multiverse
deb-src
http://cn.archive.ubuntu.com/ubuntu/ jaunty-updates multiverse
## Uncomment the following two lines to add software from the 'backports'
## repository.
## 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://cn.archive.ubuntu.com/ubuntu/ jaunty-backports main restricted universe multiverse
# deb-src
http://cn.archive.ubuntu.com/ubuntu/ jaunty-backports main restricted universe 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 jaunty partner
# deb-src
http://archive.canonical.com/ubuntu jaunty partner
deb
http://security.ubuntu.com/ubuntu jaunty-security main restricted
deb-src
http://security.ubuntu.com/ubuntu jaunty-security main restricted
deb
http://security.ubuntu.com/ubuntu jaunty-security universe
deb-src
http://security.ubuntu.com/ubuntu jaunty-security universe
deb
http://security.ubuntu.com/ubuntu jaunty-security multiverse
deb-src
http://security.ubuntu.com/ubuntu jaunty-security multiverse
deb
http://archive.ubuntu.com/ubuntu/ karmic main universe restricted multiverse
deb-src
http://archive.ubuntu.com/ubuntu/ karmic main universe restricted multiverse #Added by software-properties
deb
http://security.ubuntu.com/ubuntu/ karmic-security universe main multiverse restricted
deb-src
http://security.ubuntu.com/ubuntu/ karmic-security universe main multiverse restricted #Added by software-properties
deb
http://archive.ubuntu.com/ubuntu/ karmic-updates universe main multiverse restricted
deb-src
http://archive.ubuntu.com/ubuntu/ karmic-updates universe main multiverse restricted #Added by software-properties
