Problem with application start `Genser Nerves.Time.Ntpd terminating`

[Victoria91]

Hi| I'm trying to use your library for time syncing, however it doesn't work for me. The whole application fails to start with

Genser Nerves.Time.Ntpd terminating
ntpd exited with code: 1!
Last message: {#Port<0.81>, {:exit_status, 1}}

I was advised to edit /etc/services to allow port 123 for udp and tcp, I did https://github.com/IT-CTI/custom_rpi3/commit/ddd52f80649fa4aac14ee78d367506cf29f19a3e, however it didn't work.

Is there something else to be done to make the nerves_time work?

[fhunleth]

nerves_time only knows how to work with Busybox ntpd.

One option is to remove these lines: https://github.com/IT-CTI/custom_rpi3/blob/master/nerves_defconfig#L81-L90 from your nerves_defconfig. You'll need to rebuild the Nerves system so that the Busybox ntpd isn't overwritten by the ntp.org daemon.

Another option would be to modify nerves_time to work with the ntp.org NTP daemon. I'm guessing that the issue is something like the Busybox implementation's commandline options are different or config files need more information. I'm not sure.

[JohnBat26]

@fhunleth We have removed aforementioned lines: https://github.com/IT-CTI/custom_rpi3/commit/b108ebea737fae4905f41f411daab4dc94323415 But the problem remains. @fhunleth Are there any approach with start ntpd without nerves_time before started Erlang VM on RPI 3 ?

[fhunleth]

Could you reproduce the issue with an official Nerves system?

[JohnBat26]

@fhunleth I'll try to do it.

[JohnBat26]

@fhunleth ntp works now ! :slightly_smiling_face: but I have next problem:

 :tzdata_release_updater terminating read_only file system

[JohnBat26]

resolved with: config :tzdata, :data_dir, "/root/storage" Thanks ;)