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Ubuntu 18.04如何更换源

发布时间：2024-01-23 16:21

1.输入该命令按回车键拷贝源文件进行备份：`cp /etc/apt/sources.list /etc/apt/sources.list.bak`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2024-01-23/1620135b021da.jpg)

2.输入该命令按回车键：`vi /etc/apt/sources.list`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2024-01-23/162013b93ed85.jpg)

3.按`i`进入插入模式，将文件内容修改为如下内容，然后按`ESC`键输入`wq`按回车键保存退出vi编辑

deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
    deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
    deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
    deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
    deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
    deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
    \# deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
    \# deb-src 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-backports main restricted universe multiverse

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2024-01-23/1620130f23920.jpg)

4.输入该命令按回车键更新列表：`apt-get update`

![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2024-01-23/1620130dd8020.jpg)