[Nut-upsuser] NUT 2.0.3 ups.conf serial comms to an MGE Ellipse

[Jason Allen]

I am running Ubuntu 6.06 connected via serial port to an MGE Pulsar 
Ellipse 800VA. Have just installed NUT 2.0.3, and have problems with 
connectivity. This UPS was workign via serial connectivity to a BSD 
system only a few days ago. I have followed the instructions at 
http://opensource.mgeups.com/install/debian.htm

The details...

jason at ubuntu:~$ ls -la /dev/ttyS?
crw-rw-rw- 1 root dialout 4, 64 2006-05-15 22:18 /dev/ttyS0
crw-rw-rw- 1 root dialout 4, 65 2006-05-14 22:12 /dev/ttyS1

jason at ubuntu:~$ grep -i nut /etc/group
dialout:x:20:jason,nut
nut:x:117:

jason at ubuntu:~$ grep -i nut /etc/passwd
nut:x:107:117::/var/lib/nut:/bin/false

jason at ubuntu:~$ ls -la /etc/nut/
-rw-r-----  1 root nut  3769 2006-05-15 21:30 ups.conf
-rw-r-----  1 root nut  1407 2006-05-15 20:26 upsd.conf
-rw-r-----  1 root nut  2391 2006-05-15 20:34 upsd.users

jason at ubuntu:~$ sudo cat /etc/nut/ups.conf
[...]
user = nut
[mge]
   driver = mge-shut
   port = /dev/ttyS1
   desc = "MGE Pulsar Ellipse UPS"

jason at ubuntu:~$ dmesg | grep -i ttyS
[42949378.240000] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[42949378.240000] serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
[42949378.250000] 00:09: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[42949378.250000] 00:0a: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A

I have also tried/used "port = /dev/ttyS0" in the ups.conf to make sure 
it's not just the wrong serial port I am selecting.

jason at ubuntu:~$ /sbin/upsdrvctl -u nut start [mge]
Network UPS Tools - UPS driver controller 2.0.3
Can't open /etc/nut/ups.conf: Can't open /etc/nut/ups.conf: Permission 
denied

jason at ubuntu:~$ sudo /sbin/upsdrvctl -t -u nut start [mge]
Network UPS Tools - UPS driver controller 2.0.3
*** Testing mode: not calling exec/kill
UPS [mge] not found in ups.conf

Two questions arise:
a) Since '/etc/nut/ups.conf' has read rights for group 'nut', why does 
starting 'upsdrvctl' under parameter for user 'nut' give a permission 
denied on the conf file?

b) Why does starting 'upsdrvctl' under sudo for root permission give a 
response that "[mge]" is not found in the conf file? As above, clearly 
it is.

Help/thoughts appreciated.


---
Cheers,
Jason