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BK650M2-CH 使用unraid自带的apcupsd好像会出问题。通过apc论坛查询具体原因的情况如下： （https://community.se.com/t5/APC-UPS-for-Home-and-Office-Forum/BK650M2-CH-使用apcupsd故障原因-不正常的必看/td-p/296742） 然后安装nut插件，刚刚开始还可以正常使用，但是不定时的会掉线，还不能自动恢复，日志提示如下： usbhid-ups[18349]: nut_libusb_get_report: Input/Output Error. ... usbhid-ups[18835]: device->Product is NULL so it is not possible to determine whether to activate max_report_size workaround usbhid-ups[18835]: device->Product is NULL so it is not possible to determine whether to activate max_report_size workaround usbhid-ups[18835]: device->Product is NULL so it is not possible to determine whether to activate max_report_size workaround ... 需要手动插拔网线才能重新连接上。 后来看到论坛里有网友提到定时（如每30分钟）执行如下脚本暂时解决问题： #!/bin/bash # Test communication with UPS if upscmd -l ups > /dev/nul; then echo The UPS is connected. else echo Error: Communication with the UPS has failed! # Get USB path for the UPS APC=$( lsusb | grep "American Power Conversion" | perl -nE "/\D+(\d+)\D+(\d+).+/; print qq(\$1/\$2)") # Test for a USB conection if [ -z "$APC" ]; then echo Error: No USB UPS detected! else echo Resetting the USB connection... # Reset the USB connection if usbreset $APC; then echo USB reset completed successfully. else echo Error: USB reset failed! fi fi fi 不知道群里的各位小伙伴有没有更加好的解决方法？