1. 更新CentOS软件源(国内适用)
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-6.repo
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wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
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wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-8.repo
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2. 生成缓存
yum makecache
3. 升级至最新版本
sudo dnf update -y
sudo reboot
4. 转换AlmaLinux OS
4.1 准备脚本
curl -O https://raw.githubusercontent.com/AlmaLinux/almalinux-deploy/master/almalinux-deploy.sh
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curl -O https://cdn.jsdelivr.net/gh/AlmaLinux/almalinux-deploy@master/almalinux-deploy.sh
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注意: 需要赋予almalinux-deploy.sh文件完全的可执行权限,否则很可能升级不成功!
4.2 转换
sudo bash almalinux-deploy.sh
耐心等候,几分钟至十几分钟(根据自身服务器性能而定)后重启
sudo reboot
4.3 升级AlmaLinux OS
sudo yum update -y
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