[Nut-upsuser] Premature end of script headers: upsimage.cgi

Jean Delvare khali at linux-fr.org
Thu Jul 9 19:43:34 UTC 2009

On Thu, 9 Jul 2009 12:29:31 -0400, benjamin thielsen wrote:
> hi-
> i'm using version 2.4.1, courtesy of debian testing, and noticed that  
> in the web interface, the image for the battery voltage bar graph  
> wasn't displaying.  the other images (change, input, output, load)  
> seem to be fine.  the browser reports "500 internal server error", and  
> apache reports "Premature end of script headers: upsimage.cgi,  
> referer: https://graphs.ltn.lvc.com/cgi-bin/nut/upsstats.cgi?host=ups6@localhost 
> "
> upsc seems to also be working as expected, and reports a value for  
> battery voltage:
>  >upsc ups6 at localhost battery.voltage
> 55.00
> i have 5 of these upses in total (smart-ups 1500 xlm monitored via  
> snmp) which all exhibit the same behavior.
> how can i further troubleshoot this?

You could try running upsimage.cgi manually, maybe you'll get a useful
error message.

Jean Delvare

More information about the Nut-upsuser mailing list