12 o clock reboot - Rock 5B

#1

Hi Team,

I am using Rock 5B, booted with Ubuntu 20 04 LTS Server OS which was officially provided by radxa team. The weird thing is everyday night 12:00 o clock device is getting rebooted. I’ve checked crontab also, no jobs assigned. How to resolve this issue?

Please help me with this.

Thanks in advance.

#2

Erm, try to use different power plug?

1 Like
#3

Thanks!

I’ve tried using multiple power plug. Getting same issues. Any other suggestions ?
Is there any issue, particularly rebooting at 12 0 clk Midnight ?

#4

Did you check the logs if the device has powered down in a clean manner? Does "journalctl -r" show anything about powering down at that specific time?

#5

Hi,

I checked after your suggestion. Nothing wrong in that it seems.

Apologise for not mentioned, For testing purpose I’ve made device time ‘23:59:00’ purposefully, using timedatectl. Exactly 12 o clk device is rebooting. With this output I can conclude that there is no power supply prblem if I am not wrong.

Please help me with this.

#6

Then my advice is to reinstall OS, someone trolled you

Or do
grep -rnw / -e ‘reboot’

#7

Or it does another task which just hangs the board and the watchdog kicks in… Check the journal…

#8

How about:

  1. writing shutdown -cin the terminal, this will cancel a pending shutdown command
  2. checking whether you don’t have something like this set up in cron
#9 
nano /var/log/syslog

Any ‘sudo reboot’?

#10

Thanks @incognito

  1. I have tried that already, but didn’t help.
  2. Verified, FYI please refer to the below image.

image

#11

Hi @Dbenton

I am using official ubuntu image provided by radxa, in which I am not able to see syslog files. I think they’re not providing for using as minimal package, if I am not wrong.

1 Like
#12

Also, wanted to share info, yesterday I have used my Mobile adapter and Type C cable, It didn’t rebooted.
Previously I was using the Adapter which officially provided from Radxa website. Both are having same o/p V. But anyways, I am going to reflash the eMMC, Still I wanted to figure out the issue.

Please help with this.

1 Like
#13

This is very strange indeed. PD related maybe then?