最后执行 - 换源完成后执行更新

Centos

sudo yum clean all
sudo yum makecache

Ubuntu

sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get upgrade

Rocky

# 清理旧缓存
sudo dnf clean all
 
# 生成新缓存
sudo dnf makecache
 
# 验证配置是否生效（检查仓库地址）
sudo dnf repolist

换源

Centos7

目录：/etc/yum.repos.d/CentOS-Base.repo

#备份yum原文件
sudo cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak

#阿里云源
sudo wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

#清华大学源
sudo wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.tuna.tsinghua.edu.cn/repo/Centos-7.repo

Centos8

#阿里云源
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-8.repo

#清华大学源
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.tuna.tsinghua.edu.cn/repo/centos8/CentOS-Base.repo

Ubuntu22源

目录：/etc/apt/sources.list

注意：此为Ubuntu22源

#腾讯源
deb http://mirrors.cloud.tencent.com/ubuntu jammy main restricted
deb http://mirrors.cloud.tencent.com/ubuntu jammy-updates main restricted

deb http://mirrors.cloud.tencent.com/ubuntu jammy universe
deb http://mirrors.cloud.tencent.com/ubuntu jammy-updates universe

deb http://mirrors.cloud.tencent.com/ubuntu jammy multiverse
deb http://mirrors.cloud.tencent.com/ubuntu jammy-updates multiverse

deb http://mirrors.cloud.tencent.com/ubuntu jammy-backports main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu jammy-security main restricted

deb http://mirrors.cloud.tencent.com/ubuntu jammy-security universe
deb http://mirrors.cloud.tencent.com/ubuntu jammy-security multiverse

#阿里源
deb https://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse

Ubuntu24源

#清华源
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ noble main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ noble-updates main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ noble-backports main restricted universe multiverse

deb http://ports.ubuntu.com/ubuntu-ports/ noble-security main restricted universe multiverse

#阿里开源站
deb https://mirrors.aliyun.com/ubuntu/ noble main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ noble main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ noble-security main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ noble-security main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ noble-updates main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ noble-updates main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ noble-backports main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ noble-backports main restricted universe multiverse

Rocky换源

sudo sed -e 's|^mirrorlist=|#mirrorlist=|g' \
         -e 's|^#baseurl=http://dl.rockylinux.org/$contentdir|baseurl=https://mirrors.tuna.tsinghua.edu.cn/rocky|g' \
         -i.bak \
         /etc/yum.repos.d/rocky*.repo