有一些軟體包無法被安裝。如果您用的是 unstable 發行版，這也許是
因為系統無法達到您要求的狀態造成的。該版本中可能會有一些您需要的軟體
包尚未被建立或是它們已被從新到(Incoming)目錄移出。

中間是一些依賴包說明

無法修正錯誤，因為您要求某些軟體包保持現狀，就是它們破壞了軟體包間的依賴關係。

解決方法：

1.開啟更新設定，在“更新”選項卡中選則：重要安全更新 和 推薦更新

2.並在“其他軟體”選項卡中，去掉有問題等源

3.輸入以下命令：

sudo apt-get clean

cd /var/lib/apt
sudo mv lists lists.old
sudo mkdir -p lists/partial
sudo apt-get clean
（參閱http://forum.ubuntu.org.cn/viewtopic.php?f=80&t=372236）
然後換一個源
gksu gedit /etc/apt/sources.list
從下面列表中選擇合適的源，替換掉檔案中所有的內容，儲存編輯好的檔案:
最後執行sudo apt-get update

源列表

骨頭兄親自搭建並維護的 Ubuntu源（該源位於浙江杭州百兆共享寬頻的電信機房)，包含Deepin 等映象：

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

網易163更新伺服器（廣東廣州電信/聯通千兆雙線接入），包含其他開源映象：

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

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

LupaWorld 更新伺服器（浙江杭州電信/聯通雙線伺服器），包含其他開源映象：

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

( CN99域名 系 “常州市亞科技術有限公司”所註冊，但此公司與常州貝特康姆的法人代表和營業地址相同。所以本映象實際即原 CN99。但現在 CN99映象的域名已改為跳轉至網易映象）:

deb http://centos.bitcomm.cn/ubuntu quantal main restricted universe multiverse
deb http://centos.bitcomm.cn/ubuntu quantal-security main restricted universe multiverse
deb http://centos.bitcomm.cn/ubuntu quantal-updates main restricted universe multiverse
deb http://centos.bitcomm.cn/ubuntu quantal-backports main restricted universe multiverse
deb http://centos.bitcomm.cn/ubuntu quantal-proposed main restricted universe multiverse
deb-src http://centos.bitcomm.cn/ubuntu quantal main restricted universe multiverse
deb-src http://centos.bitcomm.cn/ubuntu quantal-security main restricted universe multiverse
deb-src http://centos.bitcomm.cn/ubuntu quantal-updates main restricted universe multiverse
deb-src http://centos.bitcomm.cn/ubuntu quantal-backports main restricted universe multiverse
deb-src http://centos.bitcomm.cn/ubuntu quantal-proposed main restricted universe multiverse

以下為有教育網接入的伺服器（推薦教育網使用者使用，部分非教育網使用者也有可觀的速度。教育網使用者請優先使用IPv6地址。

deb http://debian.ustc.edu.cn/ubuntu/ quantal main multiverse restricted universe
deb http://debian.ustc.edu.cn/ubuntu/ quantal-backports main multiverse restricted universe
deb http://debian.ustc.edu.cn/ubuntu/ quantal-proposed main multiverse restricted universe
deb http://debian.ustc.edu.cn/ubuntu/ quantal-security main multiverse restricted universe
deb http://debian.ustc.edu.cn/ubuntu/ quantal-updates main multiverse restricted universe
deb-src http://debian.ustc.edu.cn/ubuntu/ quantal main multiverse restricted universe
deb-src http://debian.ustc.edu.cn/ubuntu/ quantal-backports main multiverse restricted universe
deb-src http://debian.ustc.edu.cn/ubuntu/ quantal-proposed main multiverse restricted universe
deb-src http://debian.ustc.edu.cn/ubuntu/ quantal-security main multiverse restricted universe
deb-src http://debian.ustc.edu.cn/ubuntu/ quantal-updates main multiverse restricted universe

IPv6-Only 地址

deb http://mirrors6.ustc.edu.cn/ubuntu/ quantal main multiverse restricted universe
deb http://mirrors6.ustc.edu.cn/ubuntu/ quantal-backports main multiverse restricted universe
deb http://mirrors6.ustc.edu.cn/ubuntu/ quantal-proposed main multiverse restricted universe
deb http://mirrors6.ustc.edu.cn/ubuntu/ quantal-security main multiverse restricted universe
deb http://mirrors6.ustc.edu.cn/ubuntu/ quantal-updates main multiverse restricted universe
deb-src http://mirrors6.ustc.edu.cn/ubuntu/ quantal main multiverse restricted universe
deb-src http://mirrors6.ustc.edu.cn/ubuntu/ quantal-backports main multiverse restricted universe
deb-src http://mirrors6.ustc.edu.cn/ubuntu/ quantal-proposed main multiverse restricted universe
deb-src http://mirrors6.ustc.edu.cn/ubuntu/ quantal-security main multiverse restricted universe
deb-src http://mirrors6.ustc.edu.cn/ubuntu/ quantal-updates main multiverse restricted universe

清華大學更新伺服器，（教育網核心節點百兆接入，已計劃提高到千兆）由清華大學學生網管會維護。包含其他開源映象：

deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ quantal main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ quantal-security main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ quantal-updates main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ quantal-backports main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ quantal-proposed main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ quantal main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ quantal-security main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ quantal-updates main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ quantal-backports main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ quantal-proposed main restricted universe multiverse

IPv4-Only 地址

deb http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ quantal main restricted universe multiverse
deb http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ quantal-security main restricted universe multiverse
deb http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ quantal-updates main restricted universe multiverse
deb http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ quantal-backports main restricted universe multiverse
deb http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ quantal-proposed main restricted universe multiverse
deb-src http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ quantal main restricted universe multiverse
deb-src http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ quantal-security main restricted universe multiverse
deb-src http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ quantal-updates main restricted universe multiverse
deb-src http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ quantal-backports main restricted universe multiverse
deb-src http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ quantal-proposed main restricted universe multiverse

IPv6-Only 地址

deb http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ quantal main multiverse restricted universe
deb http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ quantal-backports main multiverse restricted universe
deb http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ quantal-proposed main multiverse restricted universe
deb http://mirrors.6.tuna.tsinghua.edu.cn//ubuntu/ quantal-security main multiverse restricted universe
deb http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ quantal-updates main multiverse restricted universe
deb-src http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ quantal main multiverse restricted universe
deb-src http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ quantal-backports main multiverse restricted universe
deb-src http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ quantal-proposed main multiverse restricted universe
deb-src http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ quantal-security main multiverse restricted universe
deb-src http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ quantal-updates main multiverse restricted universe

北京交通大學更新伺服器（教育網/電信百兆接入），由北京交通大學資訊中心贊助，包含其他開源映象。

（域名中的 bjtu 可以替換為 njtu ，即北交舊名“北方交通大學”對應域名） ：

deb http://mirror.bjtu.edu.cn/ubuntu/ quantal main multiverse restricted universe
deb http://mirror.bjtu.edu.cn/ubuntu/ quantal-backports main multiverse restricted universe
deb http://mirror.bjtu.edu.cn/ubuntu/ quantal-proposed main multiverse restricted universe
deb http://mirror.bjtu.edu.cn/ubuntu/ quantal-security main multiverse restricted universe
deb http://mirror.bjtu.edu.cn/ubuntu/ quantal-updates main multiverse restricted universe
deb-src http://mirror.bjtu.edu.cn/ubuntu/ quantal main multiverse restricted universe
deb-src http://mirror.bjtu.edu.cn/ubuntu/ quantal-backports main multiverse restricted universe
deb-src http://mirror.bjtu.edu.cn/ubuntu/ quantal-proposed main multiverse restricted universe
deb-src http://mirror.bjtu.edu.cn/ubuntu/ quantal-security main multiverse restricted universe
deb-src http://mirror.bjtu.edu.cn/ubuntu/ quantal-updates main multiverse restricted universe

IPv6-Only 地址

deb http://mirror6.bjtu.edu.cn/ubuntu/ quantal main multiverse restricted universe
deb http://mirror6.bjtu.edu.cn/ubuntu/ quantal-backports main multiverse restricted universe
deb http://mirror6.bjtu.edu.cn/ubuntu/ quantal-proposed main multiverse restricted universe
deb http://mirror6.bjtu.edu.cn/ubuntu/ quantal-security main multiverse restricted universe
deb http://mirror6.bjtu.edu.cn/ubuntu/ quantal-updates main multiverse restricted universe
deb-src http://mirror6.bjtu.edu.cn/ubuntu/ quantal main multiverse restricted universe
deb-src http://mirror6.bjtu.edu.cn/ubuntu/ quantal-backports main multiverse restricted universe
deb-src http://mirror6.bjtu.edu.cn/ubuntu/ quantal-proposed main multiverse restricted universe
deb-src http://mirror6.bjtu.edu.cn/ubuntu/ quantal-security main multiverse restricted universe
deb-src http://mirror6.bjtu.edu.cn/ubuntu/ quantal-updates main multiverse restricted universe

北京理工大學更新伺服器（僅教育網可以訪問），包含其他開源映象：

deb http://mirror.bit.edu.cn/ubuntu/ quantal main restricted universe multiverse
deb http://mirror.bit.edu.cn/ubuntu/ quantal-security main restricted universe multiverse
deb http://mirror.bit.edu.cn/ubuntu/ quantal-updates main restricted universe multiverse
deb http://mirror.bit.edu.cn/ubuntu/ quantal-backports main restricted universe multiverse
deb http://mirror.bit.edu.cn/ubuntu/ quantal-proposed main restricted universe multiverse
deb-src http://mirror.bit.edu.cn/ubuntu/ quantal main restricted universe multiverse
deb-src http://mirror.bit.edu.cn/ubuntu/ quantal-security main restricted universe multiverse
deb-src http://mirror.bit.edu.cn/ubuntu/ quantal-updates main restricted universe multiverse
deb-src http://mirror.bit.edu.cn/ubuntu/ quantal-backports main restricted universe multiverse
deb-src http://mirror.bit.edu.cn/ubuntu/ quantal-proposed main restricted universe multiverse