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**macOS 上彻底屏蔽系统更新**（包括系统偏好设置的小红点、后台下载、升级提醒等），得分层次来搞，系统层面、UI 层面、网络层面都要动手。下面是最有效、风险可控的组合拳 👇 \n\n---\n\n## 🧱 一、彻底禁用自动更新机制\n### 1️⃣ 关闭所有自动检查与下载\n```bash\nsudo softwareupdate --schedule off\nsudo defaults write /Library/Preferences/com.apple.SoftwareUpdate AutomaticCheckEnabled -bool false\nsudo defaults write /Library/Preferences/com.apple.SoftwareUpdate AutomaticDownload -bool false\nsudo defaults write /Library/Preferences/com.apple.SoftwareUpdate AutomaticallyInstallMacOSUpdates -bool false\nsudo defaults write /Library/Preferences/com.apple.SoftwareUpdate ConfigDataInstall -bool false\nsudo defaults write /Library/Preferences/com.apple.SoftwareUpdate CriticalUpdateInstall -bool false\n```\n这会关闭所有系统层面的自动检查与下载。\n\n---\n\n## 🚫 二、屏蔽系统更新的通知与偏好设置提示\n### 2️⃣ 隐藏系统设置里的更新红点与推荐升级\n```bash\nsudo defaults write /Library/Preferences/com.apple.preferences.softwareupdate.plist LastRecommendedMajorOSBundleIdentifier \"com.apple.InstallAssistant.macOSSequoia\"\nsudo defaults write /Library/Preferences/com.apple.preferences.softwareupdate.plist LastRecommendedMajorOSVersion \"15.0\"\n```\n（👆这招的意思是告诉系统“我已经知道最新版本了”，它就不会再烦你。）\n\n### 3️⃣ 阻止系统更新守护进程启动\n```bash\nsudo launchctl disable system/com.apple.softwareupdated\nsudo launchctl bootout system /System/Library/LaunchDaemons/com.apple.softwareupdated.plist\n```\n⚠️ 注意：执行这步后，系统不会再检测更新，App Store 的系统更新也会失效（但普通 App 更新不受影响）。\n\n---\n\n## 🧱 三、网络层面彻底封死\n如果你想极致一点（比如公司电脑或测试机），可以直接在 `/etc/hosts` 屏蔽更新域名：\n```bash\nsudo nano /etc/hosts\n```\n加入：\n```\n127.0.0.1 swscan.apple.com\n127.0.0.1 swcdn.apple.com\n127.0.0.1 swquery.apple.com\n127.0.0.1 swdownload.apple.com\n127.0.0.1 swdist.apple.com\n```\n保存后执行：\n```bash\nsudo dscacheutil -flushcache\n```\n\n---\n\n## 🧩 四、可选：用 Profile 配置描述文件彻底锁定\n在企业或开发者场景，可以使用配置描述文件（MDM 或手动）：\n```xml\ncom.apple.SoftwareUpdate\n\n AutomaticCheckEnabled\n AutomaticDownload\n AutomaticallyInstallMacOSUpdates\n ConfigDataInstall\n CriticalUpdateInstall\n\n```\n保存成 `DisableSoftwareUpdate.mobileconfig` 并用 `profiles install` 安装。 \n👉 优点：即使系统升级也会保留策略，不容易被重置。\n\n---\n\n## 💡 五、验证状态\n执行以下命令验证是否已禁用：\n```bash\nsoftwareupdate --schedule\ndefaults read /Library/Preferences/com.apple.SoftwareUpdate\nlaunchctl print-disabled system | grep softwareupdated\n```\n\n---\n\n## ⚙️ 可逆操作\n如果你要恢复：\n```bash\nsudo launchctl enable system/com.apple.softwareupdated\nsudo softwareupdate --schedule on\n```\n\n---\n\n## 🧠 总结（推荐组合拳）\n| 目的 | 命令/方法 | 推荐 |\n|------|------------|------|\n| 停止自动检查 | `softwareupdate --schedule off` | ✅ |\n| 停止自动下载 | `AutomaticDownload=false` | ✅ |\n| 禁止通知红点 | `LastRecommendedMajorOSVersion` | ✅ |\n| 禁止守护进程 | `launchctl disable softwareupdated` | ✅ |\n| 屏蔽域名 | `/etc/hosts` | 可选 |\n| MDM锁策略 | `.mobileconfig` | 高阶 |\n\n---\n\n要我帮你生成一份 `.mobileconfig` 文件（双击安装就能屏蔽所有更新）吗？这样最稳、最干净。","role","assistant","name",{},"dd",{"_136":137,"_138":139},"disablePrefetch","shouldPrefetchAccount","shouldPrefetchUser","shouldPrefetchSystemHints","promoteCss","disableSSR","stripModulepreloadImports","statsigGateEvaluationsPromise",["P",135],"traceId","14585354362717003184","traceTime",1777278601318]

Chat history

屏蔽macOS系统更新