1.首先备份你的sources 文件
sudo cp /etc/apt/sources.list /etc/apt/sources.list.bksudo gedit /etc/apt/sources.list
编辑你的源列表，将原来的内容全部删除，添加下面列表中最适合你的源（注意不要全部添加），选择一个最合适你的即可，复制到你的列表中，然后保存列表。

2.使用sudo apt-get update 更新源列表信息
可以在运行“sudo apt-get update ”时查看一下错误信息，把不能连接的源删除再重新运行“sudo apt-get update ”。

3.使用sudo apt-get upgrade 升级
或者用ubuntu自带的更新管理器升级也可

Ubuntu 10.10源列表：

台湾源
代码:
deb http://tw.archive.ubuntu.com/ubuntu/ maverick main universe restricted multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu/ maverick main universe restricted multiverse
deb http://tw.archive.ubuntu.com/ubuntu/ maverick-security universe main multiverse restricted
deb-src http://tw.archive.ubuntu.com/ubuntu/ maverick-security universe main multiverse restricted
deb http://tw.archive.ubuntu.com/ubuntu/ maverick-updates universe main multiverse restricted
deb-src http://tw.archive.ubuntu.com/ubuntu/ maverick-updates universe main multiverse restricted

SRT Sources
代码:

deb http://ubuntu.srt.cn/ubuntu/ maverick main restricted universe multiverse
deb http://ubuntu.srt.cn/ubuntu/ maverick-security main restricted universe multiverse
deb http://ubuntu.srt.cn/ubuntu/ maverick-updates main restricted universe multiverse
deb http://ubuntu.srt.cn/ubuntu/ maverick-proposed main restricted universe multiverse
deb http://ubuntu.srt.cn/ubuntu/ maverick-backports main restricted universe multiverse
deb-src http://ubuntu.srt.cn/ubuntu/ maverick main restricted universe multiverse
deb-src http://ubuntu.srt.cn/ubuntu/ maverick-security main restricted universe multiverse
deb-src http://ubuntu.srt.cn/ubuntu/ maverick-updates main restricted universe multiverse
deb-src http://ubuntu.srt.cn/ubuntu/ maverick-proposed main restricted universe multiverse
deb-src http://ubuntu.srt.cn/ubuntu/ maverick-backports main restricted universe multiverse

网易 Ubuntu 10.10 源（速度很快）
代码:

deb http://mirrors.163.com/ubuntu/ maverick main universe restricted multiverse
deb-src http://mirrors.163.com/ubuntu/ maverick main universe restricted multiverse
deb http://mirrors.163.com/ubuntu/ maverick-security universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ maverick-security universe main multiverse restricted
deb http://mirrors.163.com/ubuntu/ maverick-updates universe main multiverse restricted
deb http://mirrors.163.com/ubuntu/ maverick-proposed universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ maverick-proposed universe main multiverse restricted
deb http://mirrors.163.com/ubuntu/ maverick-backports universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ maverick-backports universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ maverick-updates universe main multiverse restricted

ubuntu 10.10 上海 源，提供 Kernel，Hiweed，ubuntu
代码:

deb http://mirror.rootguide.org/ubuntu/ maverick main universe restricted multiverse
deb-src http://mirror.rootguide.org/ubuntu/ maverick main universe restricted multiverse
deb http://mirror.rootguide.org/ubuntu/ maverick-security universe main multiverse restricted
deb-src http://mirror.rootguide.org/ubuntu/ maverick-security universe main multiverse restricted
deb http://mirror.rootguide.org/ubuntu/ maverick-updates universe main multiverse restricted
deb http://mirror.rootguide.org/ubuntu/ maverick-proposed universe main multiverse restricted
deb-src http://mirror.rootguide.org/ubuntu/ maverick-proposed universe main multiverse restricted
deb http://mirror.rootguide.org/ubuntu/ maverick-backports universe main multiverse restricted
deb-src http://mirror.rootguide.org/ubuntu/ maverick-backports universe main multiverse restricted
deb-src http://mirror.rootguide.org/ubuntu/ maverick-updates universe main multiverse restricted

搜狐 Ubuntu 10.10 源
代码:

deb http://mirrors.shlug.org/ubuntu/ maverick main universe restricted multiverse
deb-src http://mirrors.shlug.org/ubuntu/ maverick main universe restricted multiverse
deb http://mirrors.shlug.org/ubuntu/ maverick-security universe main multiverse restricted
deb-src http://mirrors.shlug.org/ubuntu/ maverick-security universe main multiverse restricted
deb http://mirrors.shlug.org/ubuntu/ maverick-updates universe main multiverse restricted
deb http://mirrors.shlug.org/ubuntu/ maverick-proposed universe main multiverse restricted
deb-src http://mirrors.shlug.org/ubuntu/ maverick-proposed universe main multiverse restricted
deb http://mirrors.shlug.org/ubuntu/ maverick-backports universe main multiverse restricted
deb-src http://mirrors.shlug.org/ubuntu/ maverick-backports universe main multiverse restricted
deb-src http://mirrors.shlug.org/ubuntu/ maverick-updates universe main multiverse restricted

骨头源，骨头源是bones7456架设的一个Ubuntu源 ，提供ubuntu,deepin
代码:
deb http://ubuntu.srt.cn/ubuntu/ maverick main universe restricted multiverse
deb-src http://ubuntu.srt.cn/ubuntu/ maverick main universe restricted multiverse
deb http://ubuntu.srt.cn/ubuntu/ maverick-security universe main multiverse restricted
deb-src http://ubuntu.srt.cn/ubuntu/ maverick-security universe main multiverse restricted
deb http://ubuntu.srt.cn/ubuntu/ maverick-updates universe main multiverse restricted
deb http://ubuntu.srt.cn/ubuntu/ maverick-proposed universe main multiverse restricted
deb-src http://ubuntu.srt.cn/ubuntu/ maverick-proposed universe main multiverse restricted
deb http://ubuntu.srt.cn/ubuntu/ maverick-backports universe main multiverse restricted
deb-src http://ubuntu.srt.cn/ubuntu/ maverick-backports universe main multiverse restricted
deb-src http://ubuntu.srt.cn/ubuntu/ maverick-updates universe main multiverse restricted

lupaworld 源，提供 ArchLinux，Everest，FreeBSD，Fedora，LFS，Magiclinux，Mandriva，OpenOffice，openSUSE，Puppy，Red Hat，Slitaz，Turbolinux，Ubuntu，中标普华

代码:

deb http://mirror.lupaworld.com/ubuntu/ maverick main universe restricted multiverse
deb-src http://mirror.lupaworld.com/ubuntu/ maverick main universe restricted multiverse
deb http://mirror.lupaworld.com/ubuntu/ maverick-security universe main multiverse restricted
deb-src http://mirror.lupaworld.com/ubuntu/ maverick-security universe main multiverse restricted
deb http://mirror.lupaworld.com/ubuntu/ maverick-updates universe main multiverse restricted
deb http://mirror.lupaworld.com/ubuntu/ maverick-proposed universe main multiverse restricted
deb-src http://mirror.lupaworld.com/ubuntu/ maverick-proposed universe main multiverse restricted
deb http://mirror.lupaworld.com/ubuntu/ maverick-backports universe main multiverse restricted
deb-src http://mirror.lupaworld.com/ubuntu/ maverick-backports universe main multiverse restricted
deb-src http://mirror.lupaworld.com/ubuntu/ maverick-updates universe main multiverse restricted

rootguide源，ubuntu官方上海源，提供 Kernel，Hiweed，ubuntu

代码:
deb http://mirror.rootguide.org/ubuntu/ maverick main universe restricted multiverse
deb-src http://mirror.rootguide.org/ubuntu/ maverick main universe restricted multiverse
deb http://mirror.rootguide.org/ubuntu/ maverick-security universe main multiverse restricted
deb-src http://mirror.rootguide.org/ubuntu/ maverick-security universe main multiverse restricted
deb http://mirror.rootguide.org/ubuntu/ maverick-updates universe main multiverse restricted
deb http://mirror.rootguide.org/ubuntu/ maverick-proposed universe main multiverse restricted
deb-src http://mirror.rootguide.org/ubuntu/ maverick-proposed universe main multiverse restricted
deb http://mirror.rootguide.org/ubuntu/ maverick-backports universe main multiverse restricted
deb-src http://mirror.rootguide.org/ubuntu/ maverick-backports universe main multiverse restricted
deb-src http://mirror.rootguide.org/ubuntu/ maverick-updates universe main multiverse restricted

网易开源镜像站,提供FreeBSD，OpenBSD，archlinux，centos，cygwin，debian，fedora，gentoo，kernel，openSUSE，slackware，ubuntu

代码:
deb http://mirrors.163.com/ubuntu/ maverick main universe restricted multiverse
deb-src http://mirrors.163.com/ubuntu/ maverick main universe restricted multiverse
deb http://mirrors.163.com/ubuntu/ maverick-security universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ maverick-security universe main multiverse restricted
deb http://mirrors.163.com/ubuntu/ maverick-updates universe main multiverse restricted
deb http://mirrors.163.com/ubuntu/ maverick-proposed universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ maverick-proposed universe main multiverse restricted
deb http://mirrors.163.com/ubuntu/ maverick-backports universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ maverick-backports universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ maverick-updates universe main multiverse restricted

搜 狐开源镜像站，提供 CPAN，FreeBSD，NetBSD，OpenBSD，apache，archlinux，centos，cygwin，dag，debian，fedora，gentoo，kernel，lfs，mysql，nginx，openSUSE，php，rpmfusion，slackware，ubuntu

代码:

deb http://mirrors.shlug.org/ubuntu/ maverick main universe restricted multiverse
deb-src http://mirrors.shlug.org/ubuntu/ maverick main universe restricted multiverse
deb http://mirrors.shlug.org/ubuntu/ maverick-security universe main multiverse restricted
deb-src http://mirrors.shlug.org/ubuntu/ maverick-security universe main multiverse restricted
deb http://mirrors.shlug.org/ubuntu/ maverick-updates universe main multiverse restricted
deb http://mirrors.shlug.org/ubuntu/ maverick-proposed universe main multiverse restricted
deb-src http://mirrors.shlug.org/ubuntu/ maverick-proposed universe main multiverse restricted
deb http://mirrors.shlug.org/ubuntu/ maverick-backports universe main multiverse restricted
deb-src http://mirrors.shlug.org/ubuntu/ maverick-backports universe main multiverse restricted
deb-src http://mirrors.shlug.org/ubuntu/ maverick-updates universe main multiverse restricted