1、查看系统及代码
root@liujiaxinpc1:/home# lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.04.4 LTS Release: 20.04 ## 发行版 Codename: focal ## 代码
2、备份系统默认的源
root@liujiaxinpc1:/home# mv /etc/apt/sources.list /etc/apt/sources.list_bak ## 备份系统默认源
3、配置阿里源
root@liujiaxinpc1:/home# vim /etc/apt/sources.list ## 编辑为一下内容，保存退出 deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
4、更新本地软件列表
root@liujiaxinpc1:/home# apt update
5、安装软件测试
root@liujiaxinpc1:/home# ifconfig -bash: /usr/sbin/ifconfig: No such file or directory root@liujiaxinpc1:/home# apt install net-tools -y
root@liujiaxinpc1:/home# ifconfig | head -n 3 ens32: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.65.151 netmask 255.255.255.0 broadcast 192.168.65.255 inet6 fe80::1a8b:1520:347d:bea9 prefixlen 64 scopeid 0x20<link>
没有问题。
参考：https://zhuanlan.zhihu.com/p/251009600