Ubuntu9.10源更新

执行：
vi /etc/apt/sources.list

删掉里边旧的内容，把新的源列表内容贴进去:

deb karmic main universe restricted multiverse

deb karmic-updates universe main multiverse restricted

deb karmic-proposed universe main multiverse restricted

deb karmic-security universe main multiverse restricted

deb karmic-backports main multiverse restricted universe

deb-src karmic main universe restricted multiverse

deb-src karmic-security universe main multiverse restricted

deb-src karmic-updates universe main multiverse restricted

deb-src karmic-proposed universe main multiverse restricted

deb-src karmic-backports universe main multiverse restricted

deb karmic main multiverse restricted universe

deb karmic-backports main multiverse restricted universe

deb karmic-proposed main multiverse restricted universe

deb karmic-security main multiverse restricted universe

deb karmic-updates main multiverse restricted universe

deb-src karmic main multiverse restricted universe

deb-src karmic-backports main multiverse restricted universe

deb-src karmic-proposed main multiverse restricted universe

deb-src karmic-security main multiverse restricted universe

deb-src karmic-updates main multiverse restricted universe

deb karmic main restricted universe multiverse

deb karmic-security main restricted universe multiverse

deb karmic-updates main restricted universe multiverse

deb karmic-proposed main restricted universe multiverse

deb karmic-backports main restricted universe multiverse

deb-src karmic main restricted universe multiverse

deb-src karmic-security main restricted universe multiverse

deb-src karmic-updates main restricted universe multiverse

deb-src karmic-proposed main restricted universe multiverse

deb-src karmic-backports main restricted universe multiverse

deb karmic main restricted universe multiverse

deb karmic-security main restricted universe multiverse

deb karmic-updates main restricted universe multiverse

deb karmic-backports main restricted universe multiverse

deb karmic main restricted universe multiverse

deb karmic-proposed main restricted universe multiverse

deb-src karmic main restricted universe multiverse

deb-src karmic-security main restricted universe multiverse

deb-src karmic-updates main restricted universe multiverse

deb-src karmic-backports main restricted universe multiverse

deb-src karmic-proposed main restricted universe multiverse

deb karmic main universe restricted multiverse

deb http://security.ubuntu.com/ubuntu/ karmic-security universe main multiverse restricted

deb karmic-updates universe main multiverse restricted

deb karmic-proposed universe main multiverse restricted

deb-src karmic main universe restricted multiverse

deb-src karmic-proposed universe main multiverse restricted

deb-src karmic-security universe main multiverse restricted

deb-src karmic-updates universe main multiverse restricted

再执行:
sudoapt-get update

就可以生效。


方法之二：

开始菜单->系统->新立的软件包管理器
在里边按说明编辑软件仓库
更新完成后刷新一下。