Table of Contents

1. I just upgraded, and …
2. My UPS driver now says it’s broken, and won’t start. What now?
3. My favorite UPS driver disappeared after an upgrade. What now?
4. My UPS driver program won’t work. I’m starting it as root, and root owns the device, so what’s the problem?
5. upsc, upsstats, and the other clients say access denied. The device communication port (serial, USB or network) permissions are fine, so what gives?
6. I get a not listening on… error from upsd.
7. Which UPS should I buy?
8. I have an APC Smart-UPS connected with a grey APC serial cable and it won’t work.
9. Why doesn’t upsd implement the functionality of upsmon? I have to run THREE programs to monitor my UPS!
10. Why isn’t upssched part of upsmon?
11. Why doesn’t upsmon send a SIGPWR signal to init so it can deal with power events?
12. Why won’t bestups talk to my Best Fortress UPS?
13. What’s this about data stale?
14. Why do the client programs say Driver not connected when I try to run them?
15. Why don’t the pathnames in your documentation match the package I installed?
16. Everything works perfectly during the shutdown, and the UPS comes back on, but my system stays off. What’s happening?
17. My system has an ATX power supply. It will power off just fine, but it doesn’t turn back on. What can I do to fix this?
18. My Mac won’t power back up by itself into Linux after the UPS shuts down. What can I do about this?
19. My Mac won’t power back up by itself into Mac OS X after the UPS shuts down. What can I do about this?
20. I want to keep the drivers and upsd in their own security domains. How can this be accomplished?
21. What’s the point of that security domains concept above?
22. How can I make upsmon shut down my system after some fixed interval?
23. Why doesn’t upsmon shut down my system? I pulled the plug and nothing happened.
24. The CGI programs report access to that host is not authorized —  what’s going on?
25. upsd is running, so why can’t I connect to it?
26. How do you make upsmon reload the config file?
27. How do you make upsd reload the config file?
28. I just bought a new WhizBang UPS that has a USB connector. How do I monitor it?
29. My USB UPS is supported but doesn’t work!
30. Why do you not use the Linux kernel HID driver when communicating with USB UPSes?
31. I get a message from the kernel that the driver "did not claim interface 0 before use"
32. Why doesn’t my package work?
33. I can’t run this because there’s no package for it. Why isn’t this in a package yet?
34. My UPS is directly connected to an appliance with a limited version of NUT, how can I monitor the UPS from arbitrary clients?
35. My networked UPS can’t handle being monitored by dozens of NUT clients
36. How can I setup NUT as a proxy (setup a server to forward/relay client data)?
37. Why are there two copies of upsmon running?
38. I get the following error while building: make[4]: don't know how to make HP-UX/nut-drvctl.sh. Stop
39. I have some problem with some old version
40. I built NUT from Git, and it complains about lots of missing files. What happened?
41. Do I have to use a serial connection to monitor the UPS? What about direct network connections (SNMP or otherwise)?
42. What happened to the patch I sent?
43. I’m not much of a programmer. How can I help?
44. I replaced the battery in my APC Smart-UPS and now it thinks the battery is low all the time. How do you fix this?
45. My APC UPS keeps reporting OL LB, even after it’s been charging for many hours. What can I do about this?
46. upsstats returns temperatures in Celsius. I like Fahrenheit. Where’s the config file to switch it back?
47. Why is the mailing list ignoring me?
48. Why are you so insistent about sending emails to public mailing lists instead of to individuals?
49. If you want mailing list replies to go to the list, why don’t you add a Reply-To: header?
50. I found some information about another kind of UPS protocol you don’t support yet, but I don’t know what to do with it. Can you help?
51. How can you answer questions to situations that nobody’s encountered yet? Isn’t this a frequently asked questions file?
52. My UPS powers up immediately after a power failure instead of waiting for the batteries to recharge!
53. My UPS (an APC as it happens) lacks the field "battery.charge.restart" — so how will it know when to restart?
54. I’m facing a power race
55. The power came back during the shutdown, but before the UPS power off. Now the UPS does not reboot, and my computer stays off. How can I fix that?