#!/bin/sh

# check
sudo i2cdetect -y 1

# remove fake
sudo apt-get -y remove fake-hwclock
sudo update-rc.d -f fake-hwclock remove
sudo systemctl disable fake-hwclock

# device
cp hwclock-set /lib/udev/hwclock-set

# set
sudo hwclock -r
sudo hwclock -w
sudo hwclock -r