Finding the UPS serial port under OBSD
Panagiotis Atmatzidis
I have a Guard 1500 S serial UPS. I want to make it work with openbsd
& NUT. I installed from source the latest NUT stable version. I found
the driver and everything should be fine except from the fact that I
can't understand which serial port to use!
I tried to locate the UPS through stty but every device I tried
returns the same results. Can someone tell me a way to find out the
serial device that the UPS listens?
I tried out /dev/tty0X and /dev/cua0X but with no positive results.
Thank you,
Panagiotis
Steve at fivetrees
news:1177845332.4...@n76g2000hsh.googlegroups.com...
Hmmm. /dev/cua00 works for me (after re-assigning permissions to
_ups:wheel).
Is the serial port enabled in the BIOS? Are you using the correct cable (in
the case of APC, at least, they're non-standard)?
Panagiotis Atmatzidis
Ο/Η Steve at fivetrees έγραψε:
> "Panagiotis Atmatzidis" <p.atma...@gmail.com> wrote in message
> news:1177845332.4...@n76g2000hsh.googlegroups.com...
> > Hello,
> >
> > I have a Guard 1500 S serial UPS. I want to make it work with openbsd
> > & NUT. I installed from source the latest NUT stable version. I found
> > the driver and everything should be fine except from the fact that I
> > can't understand which serial port to use!
> > I tried to locate the UPS through stty but every device I tried
> > returns the same results. Can someone tell me a way to find out the
> > serial device that the UPS listens?
> >
> > I tried out /dev/tty0X and /dev/cua0X but with no positive results.
>
> Hmmm. /dev/cua00 works for me (after re-assigning permissions to
> _ups:wheel).
Yeah these are both setup correctly according with the guide. The
error I get is the following:
# upsdrvctl start
Network UPS Tools - UPS driver controller 2.0.3
Network UPS Tools - PowerCom and similars protocol UPS driver $
Revision: 0.5 $ (2.0.3)
data receiving error (-1 instead of 11 bytes)
It's the same on every port. However take a look here:
# lsof |grep -i ups
powercom 31236 _ups cwd VDIR 0,4 512 123847 /var/
db/nut
powercom 31236 _ups txt VREG 0,6 3953635 989217 /usr/
lib/libc.so.39.3
powercom 31236 _ups txt VREG 0,6 42571 824364 /usr/
libexec/ld.so
powercom 31236 _ups txt VREG 0,6 43428 86078 /usr/
local/bin/powercom
powercom 31236 _ups txt VREG 0,4 5678 164873 /var/
run/ld.so.hints
powercom 31236 _ups 0u VCHR 2,2 0t0 1434 /dev/
null
powercom 31236 _ups 1u VCHR 2,2 0t0 1434 /dev/
null
powercom 31236 _ups 2u VCHR 2,2 0t0 1434 /dev/
null
powercom 31236 _ups 3u unix 0xd5e7b5a0 0t0 -
>0xd5ff70cc
powercom 31236 _ups 4u VCHR 8,129 0t3 1146 /dev/
cua01
powercom 31236 _ups 5u unix 0xd5e7b66c 0t0 /var/
db/nut/powercom-cua01
# upsdrvctl stop
Network UPS Tools - UPS driver controller 2.0.3
Stopping UPS: Guard
# lsof |grep -i ups
#
which means that it binds the port to /dev/cua01 (I'm using second
serial marked B on the external case which is factory builded).
stty reports device busy when the driver is started...
Any ideas? :-/