原文地址: Ubuntu 12.04添加源
sudo vim /etc/apt/sources.list
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然后sudo apt-get update,sudo apt-get upgrade若出现
W: 无法下载 bzip2:/var/lib/apt/lists/partial/dl.google.com_linux_chrome_deb_dists_stable_main_binary-i386_Packages Hash 校验和不符
这样的错误，则将/var/lib/apt/lists/下的文件清空
#sudo rm -vf /var/lib/apt/lists/*
#sudo apt-get update
原文：http://www.cnblogs.com/inthedark/p/4526104.html