Arch Linux

atomikegg

Member

Registered: 2019-08-14

Posts: 128

[Solved] NTP Inactive After Powerloss

I understand aur helpers are not supported by archlinux, so if this question is disallowed, please delete it.

During pakku install of babe-git, i experienced accidental power loss. I believe it happened during a very lengthy compile process.

https://aur.archlinux.org/packages/babe-git/

After reboot, my NTP was inactive and the clock was wrong. (timezone was still correct).

I reactivated NTP-- no problem with that.

Other things seem ok. But my concern is, if NTP got messed up, maybe something else got messed up too.

Any thoughts, suggestions?

Last edited by atomikegg (2020-05-28 19:30:53)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,378

Re: [Solved] NTP Inactive After Powerloss

Run a SMART check for general harddisk health and a fsck on your filesystems. FWIW a clock getting broken on power loss can be normal (how did you need to "reactivate" NTP exactly?)

atomikegg

Member

Registered: 2019-08-14

Posts: 128

Re: [Solved] NTP Inactive After Powerloss

Thx

"need to"? `timedatectl` showed it was inactive.

timedatectl 
               Local time: Sun 2020-05-24 11:46:19 PDT     
           Universal time: Sun 2020-05-24 18:46:19 UTC     
                 RTC time: Sun 2020-05-24 18:46:19         
                Time zone: America/Los_Angeles (PDT, -0700)
System clock synchronized: yes                             
              NTP service: inactive                          
          RTC in local TZ: no 

reactivated NTP with:

timedatectl set-ntp true
systemctl restart systemd-timesyncd

After some experimenting, it seems the second command alone might have been sufficient.

What's a better word than "reactivated"?

thx

Last edited by atomikegg (2020-05-24 18:53:55)

jasonwryan

Anarchist

From: .nz

Registered: 2009-05-09

Posts: 30,426

Website

Re: [Solved] NTP Inactive After Powerloss

If you haven't enabled the service, nothing has changed...

---

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atomikegg

Member

Registered: 2019-08-14

Posts: 128

Re: [Solved] NTP Inactive After Powerloss

If you haven't enabled the service, nothing has changed...

After i ran the two commands above, my system clock corrected itself. Seems to be working.

Arch wiki says:

To enable and start it, simply run:
# timedatectl set-ntp true
https://wiki.archlinux.org/index.php/sy … yncd#Usage

So i guess you're saying both commands are required?

thx

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,378

Re: [Solved] NTP Inactive After Powerloss

But if you've never done that before this incident, then this is normal and expected. As far as I know using the set-ntp command should be sufficient, check the status of systemd-timesyncd