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Re: Progress report [Re: Debian Bullseye on Raspberry Pi 4 4GB?]



On Sun, Feb 21, 2021 at 8:58 AM Reco <recoverym4n@enotuniq.net> wrote:
>
>         Hi.
>
> On Sun, Feb 21, 2021 at 08:42:45AM -0500, Alan Corey wrote:
> > I guess a question is why you want an RTC. If you have a decent
> > internet connection just run NTP on something and it will set the
> > computer's clock.
>
> IPSec, Tor, sec=krb5* NFS mounts.

And anything related to X.509.

In the old days of cell phones, back when you needed a SIM card to get
time from the network, you had to jump through hoops to use a
non-provisioned device for development.

I think things have gotten better since then. I don't recall seeing
clock problems on unprovisioned devices in a while.

> At least these four things are badly screwed if Debian OS lacks access
> to RTC. Systemd manages to launch those before NTP-based time
> synchronization kicks in, which leads to funny things to say the least.

This may be a Systemd bug.

> And last, but not least, having working RTC leads to meaningful
> timestamps in log files that describe "early boot" (i.e. before NTP time
> sync kicks in), and that's valuable to me by itself.

Jeff


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