ubuntu20.04 更换源
时间: 2023-10-22 18:10:35 浏览: 50
要更换Ubuntu 20.04的软件更新源,可以按照以下步骤进行操作:
1. 打开终端。
2. 输入以下命令以备份原始的软件源列表文件:
```shell
sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak
```
3. 用文本编辑器打开软件源列表文件:
```shell
sudo nano /etc/apt/sources.list
```
4. 在文件中找到以"deb"开头的行,并将其替换为以下国内源之一:
- 阿里源(推荐):
```
deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
```
- 清华源:
```
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse
```
- 163源:
```
deb http://mirrors.163.com/ubuntu/ focal main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ focal-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ focal-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ focal-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ focal-backports main restricted universe multiverse
```
5. 保存更改(按Ctrl + X,然后按Y,最后按Enter)。
6. 运行以下命令以更新软件源并升级系统:
```shell
sudo apt update
sudo apt upgrade
```
7. 等待更新完成,这样你就成功更换了Ubuntu 20.04的软件更新源。