Install the software needed to be an
ipkg install ntpclient ipkg install ntp-utils ipkg install ntp-tickadj
If not already installed, also install the
Create the file
#!/bin/sh if [ -n "`pidof ntpclient`" ]; then /bin/killall ntpclient 2>/dev/null fi /sbin/adjtimex -t 10000 /sbin/ntpclient -s -h pool.ntp.org > /var/log/ntp.log /sbin/hwclock --systohc --utc
You may need to change priviledges on the file
chmod 0755 /opt/etc/init.d/slugclock
You can determine your normal operating runlevel that should be 3:
You may need to copy above created file to /etc/init.d
cp /opt/etc/init.d/slugclock /etc/init.d/slugclock
On the directory /etc/rc#.d where # is the runlevel (/etc/rc3.d normally), link the script to be executed once at boot time:
ln -s /etc/init.d/slugclock S99slugclock
Install the cron daemon:
ipkg install cron
If ipkg complains that cron is already installed by busybox, force installation
ipkg -force-overwrite install cron
And make sure that the clock is syncronized at least once an hour by editing the crontab as the user root with the following command:
Add the following line and save.
0 * * * * /etc/init.d/slugclock
Run clock adjustment.
Check if log file was created (if not, you have some problems).
ls -la /var/log/ntp.log
If file was created, but is empty, possibly time difference is too big to be corrected by ntp. In such a case first use the manual time adjustment with time close to the correct one (substitute hh:mm with current hour/minutes - e.g., 14:25).
date -s hh:mm
More information can be found here: FixTheClockUsingAdjtimexAndNtpclient