[Nut-upsuser] Synology NAS is shutting down Ubuntu servers after very brief power outage (fwd)

Roger Price roger at rogerprice.org
Wed Aug 5 08:26:08 BST 2020

On Tue, 4 Aug 2020, Todd Benivegna wrote:

>       Sorry. I've lost the thread here, what is the "it" you refer to?
> I’m not an linux expert so you’ll have to bear with me, but I guess the it I 
> was referring to whatever NUT is using since what we’re editing is a config 
> file, not a script; it doesn’t have a shebang at the top.

The command sequence specified by the SHUTDOWNCMD declaration is called from 
upsmon (a program written in C).

>       If you run the command
>       grep nut /etc/password
> I got:  grep: /etc/password: No such file or directory

Sorry, my mistake it should be

  grep nut /etc/passwd

> That may seem to be the case, however, whenever I test by manually pulling the 
> power, the servers stay up and all appears normal.  It has happened three 
> times now where I am away and the power goes out for 3-5 seconds and the 
> servers shutdown and will stay down, even if I try to power back on, until I 
> restart the Synology NAS.

In your manual test do you restore utility power after 3-5 seconds?


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