Ubuntu如何更换为国内镜像源？

Ubuntu如何更换为国内镜像源？

国内有很多Ubuntu的镜像源，包括阿里的、网易的，还有很多教育网的源，比如：清华源、中科大源。我这里以中科大的源为例分享如何修改Ubuntu 18.04里面默认的源。编辑/etc/apt/sources.list文件, 在文件最前面添加以下条目(操作前请做好相应备份)：中科大源deb bionic main restricted universe multiversedeb-src bionic main restricted universe multiversedeb bionic-updates main restricted universe multiversedeb-src bionic-updates main restricted universe multiversedeb bionic-backports main restricted universe multiversedeb-src bionic-backports main restricted universe multiversedeb bionic-security main restricted universe multiversedeb-src bionic-security main restricted universe multiversedeb bionic-proposed main restricted universe multiversedeb-src bionic-proposed main restricted universe multiverse123456789101112然后执行命令：sudo apt-get updatesudo apt-get upgrade12其他几份国内源如下：阿里源deb bionic main restricted universe multiversedeb bionic-security main restricted universe multiversedeb bionic-updates main restricted universe multiversedeb bionic-proposed main restricted universe multiversedeb bionic-backports main restricted universe multiversedeb-src bionic main restricted universe multiversedeb-src bionic-security main restricted universe multiversedeb-src bionic-updates main restricted universe multiversedeb-src bionic-proposed main restricted universe multiversedeb-src bionic-backports main restricted universe multiverse12345678910163源deb bionic main restricted universe multiversedeb bionic-security main restricted universe multiversedeb bionic-updates main restricted universe multiversedeb bionic-proposed main restricted universe multiversedeb bionic-backports main restricted universe multiversedeb-src bionic main restricted universe multiversedeb-src bionic-security main restricted universe multiversedeb-src bionic-updates main restricted universe multiversedeb-src bionic-proposed main restricted universe multiversedeb-src bionic-backports main restricted universe multiverse12345678910清华源deb bionic main restricted universe multiversedeb-src bionic main restricted universe multiversedeb bionic-updates main restricted universe multiversedeb-src bionic-updates main restricted universe multiversedeb bionic-backports main restricted universe multiversedeb-src bionic-backports main restricted universe multiversedeb bionic-security main restricted universe multiversedeb-src bionic-security main restricted universe multiversedeb bionic-proposed main restricted universe multiversedeb-src bionic-proposed main restricted universe multiverse

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