該源列表只針對 ubuntu 14.04 lts 不可以與其他版本的 ubuntu 混用 ，阿里雲的更新源比較快。其他版本更新源參見：源列表
先備份源列表
sudo cp /etc/apt/sources.list /etc/apt/sources.list_backup然後開啟源列表，清空內容，將下面源列表貼上到裡面，儲存。
sudo gedit /etc/apt/sources.list更新源
sudo apt-get updateubuntu 14.04 lts 阿里雲更新源、官方源和第三方更新源列表：
#aliyun
deb trusty main restricted universe multiverse
deb trusty-security main restricted universe multiverse
deb trusty-updates main restricted universe multiverse
deb trusty-proposed main restricted universe multiverse
deb trusty-backports main restricted universe multiverse
deb-src trusty main restricted universe multiverse
deb-src trusty-security main restricted universe multiverse
deb-src trusty-updates main restricted universe multiverse
deb-src trusty-proposed main restricted universe multiverse
deb-src trusty-backports main restricted universe multiverse
#ubuntu
deb trusty main restricted universe multiverse
deb trusty-security main restricted universe multiverse
deb trusty-updates main restricted universe multiverse
deb trusty-proposed main restricted universe multiverse
deb trusty-backports main restricted universe multiverse
deb-src trusty main restricted universe multiverse
deb-src trusty-security main restricted universe multiverse
deb-src trusty-updates main restricted universe multiverse
deb-src trusty-proposed main restricted universe multiverse
deb-src trusty-backports main restricted universe multiverse
#ubuntu other
deb trusty partner
deb trusty main
下面再提供乙個中科大的映象源：
(由 snullp 提供)
例如ubuntu14.04
deb trusty main restricted universe multiversedeb-src trusty main restricted universe multiverse
deb trusty-security main restricted universe multiverse
deb-src trusty-security main restricted universe multiverse
deb trusty-updates main restricted universe multiverse
deb-src trusty-updates main restricted universe multiverse
deb trusty-backports main restricted universe multiverse
deb-src trusty-backports main restricted universe multiverse
## not recommended
# deb trusty-proposed main restricted universe multiverse
# deb-src trusty-proposed main restricted universe multiverse
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