Linux操作系统从入门到实战：怎么查看，删除，更新本地的软件镜像源

前言

• 我的Linux版本是CentOS 9 stream
• 本篇博客我们来讲解怎么查看，删除，更新国内本地的软件镜像源

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• 在 CentOS 9 Stream 系统中，管理软件镜像源主要通过修改/etc/yum.repos.d/目录下的配置文件来实现
  

一、 查看当前镜像源

• 列出所有可用的镜像源配置

ls /etc/yum.repos.d/

移动到当前镜像源

cd /etc/yum.repos.d

tree

• 常见的源文件有：CentOS-Stream-AppStream.repo、CentOS-Stream-BaseOS.repo 等。

• 查看某个源的具体内容

cat centos.repo

二、删除当前镜像源

• 首先我们需要备份一下我们的镜像源文件

sudo cp /etc/yum.repos.d/centos-addons.repo     /etc/yum.repos.d/centos-addons.repo.bak

sudo cp /etc/yum.repos.d/centos.repo     /etc/yum.repos.d/centos.repo.bak

• 然后执行删除镜像源代码
• 方法一：直接删除配置文件（不推荐，可能影响系统更新）

sudo rm /etc/yum.repos.d/centos-addons.repo
sudo rm /etc/yum.repos.d/centos.repo

• 方法二：注释掉配置文件中的 baseurl 和 mirrorlist 行

sudo sed -i 's/^baseurl=/#baseurl=/g' /etc/yum.repos.d/centos.repo

三、更新镜像源

• 首先创建镜像源的文件夹

sudo vim /etc/yum.repos.d/centos.repo

• 在里面添加下面的代码

[baseos]
name=CentOS Stream $releasever - BaseOS
metalink=https://mirrors.centos.org/metalink?repo=centos-baseos-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
countme=1
enabled=1

[baseos-debuginfo]
name=CentOS Stream $releasever - BaseOS - Debug
metalink=https://mirrors.centos.org/metalink?repo=centos-baseos-debug-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[baseos-source]
name=CentOS Stream $releasever - BaseOS - Source
metalink=https://mirrors.centos.org/metalink?repo=centos-baseos-source-$stream&arch=source&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[appstream]
name=CentOS Stream $releasever - AppStream
metalink=https://mirrors.centos.org/metalink?repo=centos-appstream-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
countme=1
enabled=1

[appstream-debuginfo]
name=CentOS Stream $releasever - AppStream - Debug
metalink=https://mirrors.centos.org/metalink?repo=centos-appstream-debug-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[appstream-source]
name=CentOS Stream $releasever - AppStream - Source
metalink=https://mirrors.centos.org/metalink?repo=centos-appstream-source-$stream&arch=source&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[crb]
name=CentOS Stream $releasever - CRB
metalink=https://mirrors.centos.org/metalink?repo=centos-crb-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
countme=1
enabled=0

[crb-debuginfo]
name=CentOS Stream $releasever - CRB - Debug
metalink=https://mirrors.centos.org/metalink?repo=centos-crb-debug-$stream&arch=$basearch&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

[crb-source]
name=CentOS Stream $releasever - CRB - Source
metalink=https://mirrors.centos.org/metalink?repo=centos-crb-source-$stream&arch=source&protocol=https,http
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
gpgcheck=1
repo_gpgcheck=0
metadata_expire=6h
enabled=0

• 国内阿里云镜像源

[baseos]
name=CentOS Stream \$releasever - BaseOS
mirrorlist=https://mirrors.aliyun.com/centos-stream/\$releasever/BaseOS/\$basearch/os/mirrorlist
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-Official

[appstream]
name=CentOS Stream \$releasever - AppStream
mirrorlist=https://mirrors.aliyun.com/centos-stream/\$releasever/AppStream/\$basearch/os/mirrorlist
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-Official

• 清华大学镜像

[baseos]
name=CentOS Stream \$releasever - BaseOS
mirrorlist=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/\$releasever/BaseOS/\$basearch/os/mirrorlist
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-Official

[appstream]
name=CentOS Stream \$releasever - AppStream
mirrorlist=https://mirrors.tuna.tsinghua.edu.cn/centos-stream/\$releasever/AppStream/\$basearch/os/mirrorlist
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-Official

• 华为云镜像

[baseos]
name=CentOS Stream \$releasever - BaseOS
mirrorlist=https://repo.huaweicloud.com/repository/conf/CentOS-Stream-Mirrors.repo?repo=\$releasever/BaseOS/\$basearch/os
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-Official

[appstream]
name=CentOS Stream \$releasever - AppStream
mirrorlist=https://repo.huaweicloud.com/repository/conf/CentOS-Stream-Mirrors.repo?repo=\$releasever/AppStream/\$basearch/os
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-Official

四、验证

• 首先清理缓存

sudo dnf clean all

• 验证镜像源是否生效

sudo dnf repolist -v

以上就是这篇博客的全部内容，下一篇我们将继续探索Linux的更多精彩内容。

我的个人主页
欢迎来阅读我的其他文章
https://blog.csdn.net/2402_83322742?spm=1011.2415.3001.5343
我的Linux知识文章专栏
欢迎来阅读指出不足
https://blog.csdn.net/2402_83322742/category_12879535.html?spm=1001.2014.3001.5482