Uninterruptible Power Supply

Converted with HTML::WikiConverter::MediaWiki from my old phpwiki site

---

UPS (onduleur)

Mine is an Ellipse 800 from MGE, connected by a serial port.

• apt-get install nut
• adduser nut dialout (to access the serial port)
• cp /usr/share/doc/nut/examples/ups.conf /etc/nut
• cp /usr/share/doc/nut/examples/upsd.conf /etc/nut
• cp /usr/share/doc/nut/examples/upsd.users /etc/nut
• chown root:nut /etc/nut/upsd.users
• chmod 640 /etc/nut/upsd.users
• Edit /etc/nut/ups.conf:

 [myups]
 driver = mge-shut ''(see /usr/share/doc/nut/README.gz)''
 port = /dev/ttyS0

• To try:
  • upsdrvctl -v start
  • It should say "mge-shut[xxx]: Startup successful" in /var/log/syslog
  • If "No communication with UPS", edit /etc/nut/ups.conf again
• Edit /etc/nut/upsd.users

[monmaster]
password = blah
allowfrom = localhost
upsmon master

• Edit /etc/default/nut => START_UPSD=yes
• /etc/init.d/nut start
• Test:
  • upscmd -l myups@localhost
  • upsc myups@localhost

(4) /etc/nut/upsmon.conf (see 'man 5 upsmon.conf' for more information)

Edit /etc/nut/upsmon.conf and add something like the following

MONITOR myups@localhost 1 monmaster blah master

Ensure that the permissions of upsmon.conf do not permit the world to read it. It should already be thus, but the following commands

accomplishes this

chown root:nut /etc/nut/upsmon.conf chmod 640 /etc/nut/upsmon.conf

Edit /etc/default/nut and change START_UPSD and START_UPSMON from

START_UPSMON=yes

(6) start the daemon

Invoke '/etc/init.d/nut start' to start the daemon(s). Check /var/log/syslog to ensure that upsd, appropriate drivers, and upsmon started up correctly.