this post was submitted on 17 Jul 2025
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UPS: how to turn the server back on? (lemmy.world)
submitted 9 months ago* (last edited 9 months ago) by peregus@lemmy.world to c/homelab@lemmy.ml
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I've installed an APC BX950MI-GR and connected it to my Proxmox server via USB. It works: it turns off the server after x minutes after the power loss and it gets turned off by the command upsdrvctl shutdown, when the powers come back on, the UPS turns on and so does the server. The problem is if the power comes back after the server receive the power off signal and before the UPS powers off, in this case the UPS simply goes back in the normal state and the server...stays off. How can I turn it back on? Thanks!

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[–] peregus@lemmy.world 0 points 9 months ago

It depends, usually just some minutes, but during the summer it could be more. I'd like (the ideal result) to find a way that just works in any case.