57 lines
1.6 KiB
Markdown
57 lines
1.6 KiB
Markdown
---
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title: apt换源
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createTime: 2023/01/10 14:54:26
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tags:
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- Ubuntu
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---
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1. 查看 codename
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```bash
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lsb_release -a
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```
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```text
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No LSB modules are available.
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Distributor ID: Ubuntu
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Description: Ubuntu 20.04.5 LTS
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Release: 20.04
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Codename: focal
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```
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2. 换源
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```bash
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sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak
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sudo vi /etc/apt/sources.list
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```
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**注意这里 codename 的对应关系**
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```sources.list
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deb https://mirrors.ustc.edu.cn/ubuntu/ focal main restricted universe multiverse
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deb https://mirrors.ustc.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
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deb https://mirrors.ustc.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
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deb https://mirrors.ustc.edu.cn/ubuntu/ focal-security main restricted universe multiverse
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deb https://mirrors.ustc.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse
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deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal main restricted universe multiverse
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deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
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deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
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deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-security main restricted universe multiverse
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deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse
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```
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```bash
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# 如果报错 NO_PUBKEY ABCDE12345
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sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com ABCDE12345
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```
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3. 更新
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```bash
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sudo apt update
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sudo apt upgrade
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```
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> ubuntu 安装时的 mirror 选择：`https://mirrors.ustc.edu.cn/ubuntu`
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