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| #!/bin/bash | |
| # real time clock | |
| # ds3231 | |
| # https://learn.adafruit.com/adding-a-real-time-clock-to-raspberry-pi/set-rtc-time | |
| cd /boot/overlays | |
| echo >> /boot/config.txt | |
| echo 'dtoverlay=i2c-rtc,ds3231' >> /boot/config.txt | |
| cp /lib/udev/hwclock-set /lib/udev/hwclock-set.old | |
| sed -e '/run\/systemd\/system/,+2 s/^#*/#/' -i /lib/udev/hwclock-set | |
| # disable fake-hwclock | |
| # remove cronjob | |
| rm /etc/cron.hourly/fake-hwclock | |
| # disable and remove init script | |
| update-rc.d -f fake-hwclock remove | |
| rm /etc/init.d/fake-hwclock | |
| # remove package | |
| apt-get remove -y fake-hwclock | |
| apt-get autoremove -y | |
| # second autorunonce | |
| mv /boot/autoranonce* /boot/autoranonce.first | |
| sync | |
| cat <<EOF > /boot/autorunonce | |
| #!/bin/sh | |
| sleep 10 | |
| while ! curl -X GET https://google.com ; do | |
| sleep 1 | |
| done | |
| sudo service ntp restart | |
| sudo date > /boot/time | |
| sudo hwclock -w | |
| sudo hwclock -r >> /boot/time | |
| sudo hwclock -s | |
| sudo date >> /boot/time | |
| echo "server 127.127.1.0" >> /etc/ntp.conf | |
| echo "fudge 127.127.1.0 stratum 10" >> /etc/ntp.conf | |
| echo "restrict 192.168.0.0 mask 255.255.0.0 nomodify notrap" >> /etc/ntp.conf | |
| sync;sync;sync;reboot | |
| EOF | |
| sync | |
| sync | |
| sync | |
| reboot |
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