Ubuntu更换源教程所有版本通用

切换root用户

su root

不会root请移步 https://www.wenlk.com/781.html这篇教程

查看系统版本等信息

lsb_release -a

release为ubuntu的版本   codename为版本的代号

备份一下你的版本文件(建议备份),

cd /etc/apt/ 

cp sources.list sources.list.bak

恢复备份命令为(换源失败后可救命)

cp source.list.bak sources.listd

打开文件修改源,如没有vim用vi代替即可或者输入命令安装(sudo apt install vim)

sudo vim /etc/apt/sources.list

方法二,删除文件新建一个(好处:省时间)

rm -rf sources.list

vi source.list

将TODO替换成codename后的版本代码

示例:  我的是22.04 版本( jammy),那么我的源就是如下配置

将下方代码中TODO替换为你的"codename"后 按"i"键    ctrl+shif+v粘贴下方代码

deb http://mirrors.aliyun.com/ubuntu/ TODO main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ TODO main restricted universe multiverse
 
deb http://mirrors.aliyun.com/ubuntu/ TODO-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ TODO-security main restricted universe multiverse
 
deb http://mirrors.aliyun.com/ubuntu/ TODO-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ TODO-updates main restricted universe multiverse
 
deb http://mirrors.aliyun.com/ubuntu/ TODO-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ TODO-proposed main restricted universe multiverse
 
deb http://mirrors.aliyun.com/ubuntu/ TODO-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ TODO-backports main restricted universemultiverse

之后按esc退出编辑模式

输入：wq

保存并退出

随后更新缓存后重启即可

sudo apt-get update

sudo apt-get upgrade

reboot