macOS 升级到 14.0 Sonoma 之后，发现 brew 安装的 nginx 无法启动了。

sudo brew services list 查看状态:

nginx error  256 root /Library/LaunchDaemons/homebrew.mxcl.nginx.plist

手动启动之:

$ sudo brew services start nginx 
Warning: Taking root:admin ownership of some nginx paths:
  /opt/homebrew/Cellar/nginx/1.25.2/bin
  /opt/homebrew/Cellar/nginx/1.25.2/bin/nginx
  /opt/homebrew/opt/nginx
  /opt/homebrew/opt/nginx/bin
  /opt/homebrew/var/homebrew/linked/nginx
This will require manual removal of these paths using `sudo rm` on
brew upgrade/reinstall/uninstall.
Warning: nginx must be run as non-root to start at user login!
Bootstrap failed: 5: Input/output error
Error: Failure while executing; `/bin/launchctl bootstrap system /Library/LaunchDaemons/homebrew.mxcl.nginx.plist` exited with 5.

Warning 可以忽略（因为我本地跑在 80 端口，必须使用 root 权限）。

造成无法启动的原因是下面的错误：

Bootstrap failed: 5: Input/output error
Error: Failure while executing; `/bin/launchctl bootstrap system /Library/LaunchDaemons/homebrew.mxcl.nginx.plist` exited with 5.

解决方案

首先使用 sudo nginx -t 命令检查 nginx 配置是否正常。我的错误主要就是因为升级后 /var/log/nginx 目录被删除了导致的。我之前配置了一个日志输出目录在 /var/log/nginx/xxx_error.log，升级后这个整个目录不见了，导致无法启动。

其次，要先执行 sudo brew services stop nginx，然后再使用 sudo brew services start nginx 启动。

如果还不行，可以给我发邮件咨询，请附上你的详细错误信息。

标签: nginx, sonoma