1、複製原檔案備份
sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak #細看位址不同的系統 位址可能有點小差別
2、編輯源列表檔案
sudo vim /etc/apt/source.list
3、將原來的列表刪除，新增如下內容
網易源：
deb precise-updates main restricted
deb-src precise-updates main restricted
deb precise universe
deb-src precise universe
deb precise-updates universe
deb-src precise-updates universe
deb precise multiverse
deb-src precise multiverse
deb precise-updates multiverse
deb-src precise-updates multiverse
deb precise-backports main restricted universe multiverse
deb-src precise-backports main restricted universe multiverse
阿里源的方法
deb vivid main restricted universe multiverse
deb vivid-security main restricted universe multiverse
deb vivid-updates main restricted universe multiverse
deb vivid-proposed main restricted universe multiverse
deb vivid-backports main restricted universe multiverse
deb-src vivid main restricted universe multiverse
deb-src vivid-security main restricted universe multiverse
deb-src vivid-updates main restricted universe multiverse
deb-src vivid-proposed main restricted universe multiverse
deb-src vivid-backports main restricted universe multiverse
deb
precise-updates main restricted
deb-src
precise-updates main restricted
deb
precise universe
deb-src
precise universe
deb
precise-updates universe
deb-src
precise-updates universe
deb
precise multiverse
deb-src
precise multiverse
deb
precise-updates multiverse
deb-src
precise-updates multiverse
deb
precise-backports main restricted universe multiverse
deb-src
precise-backports main restricted universe multiverse
清華源
# 預設注釋了原始碼映象以提高 apt update 速度，如有需要可自行取消注釋
deb xenial main restricted universe multiverse
# deb-src xenial main main restricted universe multiverse
deb xenial-updates main restricted universe multiverse
# deb-src xenial-updates main restricted universe multiverse
deb xenial-backports main restricted universe multiverse
# deb-src xenial-backports main restricted universe multiverse
deb xenial-security main restricted universe multiverse
# deb-src xenial-security main restricted universe multiverse
# 預發布軟體源，不建議啟用
# deb xenial-proposed main restricted universe multiverse
# deb-src xenial-proposed main restricted universe multiverse
4、執行sudo apt-get update
5、執行sudo apt-get upgrade
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