当执行sudo apt-get update或者sudo apt-get install命令时,出现以下两个问题: “apt-get 404 Not Found Package Repository Errors” 和 “E: Some index files failed to download They have been ignored, or old ones used” 解决方法: 首先,我们将现在出问题的 /etc/apt/sources.list 文件备份一份(只是一个好习惯而已!
一.备份/etc/apt/sources.list文件 cd /etc/apt sudo cp sources.list sources.list.old 二.选择国内常用的源 #阿里源 deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted unive