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修改 Ubuntu 软件更新源 — blog.huangz.me

 3 years ago
source link: https://blog.huangz.me/2020/change-ubuntu-software-source.html
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修改 Ubuntu 软件更新源

../_images/ubuntu-logo.png

由于设置原因又或者用户疏忽， 某些 Ubuntu 系统在安装完毕之后使用的是国外而不是国内的软件更新源， 导致系统在升级软件的时候无法达到最优的下载速度。 为了解决这个问题， 我们需要将系统的软件更新源修改为本地源。

Ubuntu 在国内有很多源可供选择， 比如清华大学的 TUNA 源就是一个不错的选择。 我们可以根据自己的 Ubuntu 版本在 https://mirror.tuna.tsinghua.edu.cn/help/ubuntu/ 上面找到对应的源地址。

步骤

Ubuntu 的软件源配置文件为 /etc/apt/sources.list ， 我们只需要修改这个文件的内容就能够达到改变更新源的目的， 以下是具体的步骤。

  1. 备份原来的源文件：

    # cp /etc/apt/sources.list /etc/apt/sources.list.backup

  2. 了解系统版本：

    # lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 19.10
Release:        19.10
Codename:       eoan

  3. 根据版本（19.10）在上述的 TUNA 帮助页面找到相应的源地址，并复制全部内容：

    # 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan-security main restricted universe multiverse

# 预发布软件源，不建议启用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan-proposed main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan-proposed main restricted universe multiverse

  4. 打开文件，将文件内容替换为已复制的内容：

    # vi /etc/apt/sources.list

  5. 从新的软件源中获取包的更新信息：

    # apt update
Get:1 https://mirrors.tuna.tsinghua.edu.cn/ubuntu eoan InRelease [255 kB]
Get:2 https://mirrors.tuna.tsinghua.edu.cn/ubuntu eoan-updates InRelease [97.5 kB]
Get:3 https://mirrors.tuna.tsinghua.edu.cn/ubuntu eoan-backports InRelease [88.8 kB]
Get:4 https://mirrors.tuna.tsinghua.edu.cn/ubuntu eoan-security InRelease [97.5 kB]
Get:5 https://mirrors.tuna.tsinghua.edu.cn/ubuntu eoan/main amd64 Packages [969 kB]
...
Get:80 https://mirrors.tuna.tsinghua.edu.cn/ubuntu eoan-security/multiverse Translation-en [632 B]
Get:81 https://mirrors.tuna.tsinghua.edu.cn/ubuntu eoan-security/multiverse amd64 c-n-f Metadata [116 B]
Fetched 43.3 MB in 5s (8,199 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
All packages are up to date.

  6. 更新软件包：

    # apt upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
觉得更新系统速度一定要快的黄健宏
2020.2.6

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