由于我的硬件(RasberryPi)没有硬件时钟,每次启动都会使我们回到1970年的S,所以我使用NTP。我所在的网络上的网关提供了NTP-Server服务。
我的/etc/ntp.conf看起来像折叠(注释行省略)
server 192.168.170.254 //gateway that hosts the service
driftfile /var/lib/ntp/ntp.drift/etc/profile:
[connect wifi...]
timeout 15 ntpd -q -g //forces update so I have a time to work with, times out so I don't get a total hang if it doesn't work
systemctl start ntpd.service //in hopes that I will work at some point and to keep it in sync
date //see if it worked
[start main program...]我是不是遗漏了什么?
编辑
ntpd -q的输出:
DEC 31 17:00:43 alarmpi ntpd[349]: ntpd 4.2.7p446@1.2483-o Wed Jul 2 03:23:39 UTC 2014 (1): Starting
DEC 31 17:00:43 alarmpi ntpd[349]: Command line: /usr/bin/ntpd -q
DEC 31 17:00:43 alarmpi ntpd[349]: proto: precision = 3000 usec (-18)
DEC 31 17:00:43 alarmpi ntpd[349]: Listen and drop on 0 v4wildcard 0.0.0.0:123
DEC 31 17:00:43 alarmpi ntpd[349]: Listen normally on 1 lo 127.0.0.1:123
DEC 31 17:00:43 alarmpi ntpd[349]: Listen normally on 2 wlan0 192.168.170.100:123
DEC 31 17:00:43 alarmpi ntpd[349]: Listening on routing socket on fd #19 for interface updates
#hangs here till interruptedsystemctl status ntpd的输出:
* ntpd.service - Network Time Service
Loaded: loaded (/usr/lib/systemd/system/ntpd.service; disabled)
Active: active (running) since Wed 1969-12-31 17:00:43 MST, 16s ago
Process: 332 ExecStart=/usr/bin/ntpd -g -u ntp:ntp -p /run/ntpd.pid (code=exited, status=0/SUCCESS)
Main PID: 335 (ntpd)
CGroup: /system.slice/ntpd.service
`-335 /usr/bin/ntpd -g -u ntp:ntp -p /run/ntpd.pid
DEC 31 17:00:43 alarmpi ntpd[332]: ntpd 4.2.7p446@1.2483-o Wed Jul 2 03:23:39 UTC 2014 (1): Starting
DEC 31 17:00:43 alarmpi ntpd[332]: Command line: /usr/bin/ntpd -g -u ntp:ntp -q /run/ntpd.pid
DEC 31 17:00:43 alarmpi systemd[1]: PID file /run/ntpd.pid not readable (yet?) after start.
DEC 31 17:00:43 alarmpi ntpd[335]: proto: precision = 3000 usec (-18)
DEC 31 17:00:43 alarmpi ntpd[335]: Listen and drop on 0 v4wildcard 0.0.0.0:123
DEC 31 17:00:43 alarmpi ntpd[335]: Listen normally on 1 lo 127.0.0.1:123
DEC 31 17:00:43 alarmpi ntpd[335]: Listen normally on 2 wlan0 192.168.170.100:123
DEC 31 17:00:43 alarmpi ntpd[335]: Listening on routing socket on fd #19 for interface updates
DEC 31 17:00:43 alarmpi systemd[1]: Started Network Time Servicehttps://unix.stackexchange.com/questions/147850
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