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Bug 657937 - nut cannot access usbhid-ups device because of permission issues
Summary: nut cannot access usbhid-ups device because of permission issues
Alias: None
Product: Fedora
Classification: Fedora
Component: nut
Version: 14
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Michal Hlavinka
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2010-11-28 19:29 UTC by Thomas Vander Stichele
Modified: 2011-01-17 15:47 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2011-01-17 15:47:41 UTC
Type: ---

Attachments (Terms of Use)
an init.d file that works for me (3.17 KB, text/plain)
2010-11-28 19:30 UTC, Thomas Vander Stichele
no flags Details

Description Thomas Vander Stichele 2010-11-28 19:29:37 UTC
Description of problem:

For whatever reason, the nut tools need to be run with -u root (even when running them as root) to be allowed access to the devices.

I manually changed init script for ups to do this so that it now works for me and the device can be queried.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
Actual results:

Expected results:

Additional info:

Comment 1 Thomas Vander Stichele 2010-11-28 19:30:09 UTC
Created attachment 463369 [details]
an init.d file that works for me

Comment 2 Michal Hlavinka 2010-11-29 12:33:13 UTC
hi, thanks for reporting this. Seems there is some problem with udev rules and device permissions. Using -u root in init script is definitely wrong. 

please check permissions that are used for your ups device. Use 


to get list of usb devices. Find UPS in the output, for example:
> Bus 004 Device 003: ID 0463:ffff MGE UPS Systems UPS

important numbers are Bus 004 and Device 003. Get file permissions of 
ls -l /dev/bus/usb/<Bus number>/<Device number>

for my example it'd be

ls -l /dev/bus/usb/004/003
> crw-rw-r-- 1 root uucp 189, 386 2009-05-25 20:34 /dev/bus/usb/004/003

Also please add output of 
id nut


Comment 3 Michal Hlavinka 2011-01-17 15:47:41 UTC
More than a month in needinfo state, closing as insufficient_data. Feel free to reopen if you see this bug and can provide requested info.

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