ubuntu更新源 apt-get install Unable to locate package

Unable to locate package *** 遇到这个问题直接尝试sudo apt-get update 和 sudo apt-get upgrade 一般可以解决，

但是执行之后出现源的问题，访问ubuntu 官方源link  time out.

Cannot initiate the connection to cn.archive.ubuntu.com:80 (2001:67c:1562::18)

1、划重点： 直接换源

注释掉Ubuntu 官方deb 链接，添加国内源链接

sudo vim /etc/apt/sources.list

添加国内原链接：阿里源或者其他国内源

阿里源：

deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse

2、重新update 和 upgrade，且重新安装

sudo apt-get update

sudo apt-get upgrade

 

https://blog.csdn.net/xue1065540183/article/details/108312293