基础更新流程
sudo apt updatesudo apt upgrade(不自动处理依赖变更)sudo apt full-upgrade(推荐用于系统级更新)自动更新配置
sudo apt install unattended-upgradessudo dpkg-reconfigure unattended-upgrades,选择“Yes”/etc/apt/apt.conf.d/50unattended-upgrades调整更新策略清理与优化
sudo apt autoremovesudo apt clean安全增强建议
--no-install-recommends)ufw,仅开放必要端口(如SSH 22)注意事项:更新前建议备份关键数据,网络受限环境可搭建本地镜像仓库。
参考来源: