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#!/bin/bash
#
# File: wait4power
# Auth: Peter strand
# Desc: waits for utility power before going multiuser
# Date: 29 July 2000
#
echo "Checking for utility power..."
DRIVERPATH=/usr/local/ups/bin
export PATH=$PATH:$DRIVERPATH
# Get config
if [ -f /etc/sysconfig/ups ]; then
. /etc/sysconfig/ups
else
exit 1
fi
# Prepare ramdisk
dd if=/dev/zero of=/dev/ram1 bs=1k count=64 &> /dev/null
mke2fs -m0 /dev/ram1 &> /dev/null
mount /dev/ram1 /var/state/ups
chown -R nobody.nobody /var/state/ups
# If the UPS is locally attached, start driver and upsd
if [ "$HOST" = "localhost" ]; then
if [ -f $DRIVERPATH/$MODEL -a -x $DRIVERPATH/$MODEL ]; then
$MODEL $OPTIONS $DEVICE
else
echo "$DRIVERPATH/$MODEL - no driver"
exit 255
fi
upsd
fi
# Check status
CMD="/usr/local/ups/bin/upsc localhost | grep 'STATUS\:.*OB.*'"
eval $CMD > /dev/null
RESULT=$?
if [ $RESULT -eq 0 ]; then
echo "The system is running on battery power!"
echo "The boot process will continue when utility power returns."
echo "This is a safe state. You may cut power at any time."
echo
fi
while [ $RESULT -eq 0 ]; do
NOW=`date`
echo -ne "\r${NOW}: Running on battery power, waiting"
sleep 5
eval $CMD > /dev/null
RESULT=$?
done
echo -e "\nPower OK, continuing"
# Clean up
kill `pidof upsd`
kill `pidof $MODEL`
umount /var/state/ups
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