[systemd-devel] Using timedatectl on a readonly rootfile system using mender

[Shravan Singh]

And this is a major problem for any one running raspberry pi, NXP or any
other embedded processor that uses mender and embedded linux.
A machine with embedded linux running on it goes to San Francisco and then
transported to Chicago.
And you are saying that we shouldn't be allowed to change the timezone?
Just because you are not "convinced"
Does this group have a poll system? Let's put this to poll and see?

I have tried having a rational explanation with you but your attitude is
just appalling

I have tried this solution and it works
https://github.com/systemd/systemd/pull/8277.
I just don't understand why you are not willing to accept this. And provide
a solution to all the people using raspberry pi and or embedded processors?




Regards,
Shravan Singh
(239) 243-0838

Blue Sparq, Inc.
928 NE 24th Lane unit 4 and 5.
Cape Coral, FL 33993

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On Fri, Sep 4, 2020 at 6:16 PM Shravan Singh <shravan at bluesparq.com> wrote:

> What constitutes a configuration?
> And please read my email subject. I can't have writable /etc, mender
> dosen't allow that.
>
> In today's mobile computing age you really think users shouldn't change
> timezone?
> You keep saying " I for one am certainly not convinced that the timezones"
> but you don't explain why?
> Are you looking at this system as a static machine? That can never change
> timezone?
>
> And please don't use profanity. I have not and you shouldn't either.
>
> Regards,
> Shravan Singh
> (239) 243-0838
>
> Blue Sparq, Inc.
> 928 NE 24th Lane unit 4 and 5.
> Cape Coral, FL 33993
>
> IMPORTANT: The contents of this email and any attachments are
> confidential. They are intended for the named recipient(s) only. If you
> have received this email by mistake, please notify the sender immediately
> and do not disclose the contents to anyone or make copies thereof.
>
>
> On Fri, Sep 4, 2020 at 6:05 PM Lennart Poettering <lennart at poettering.net>
> wrote:
>
>> On Fr, 04.09.20 15:54, Shravan Singh (shravan at bluesparq.com) wrote:
>>
>> > Yes, But help me understand.
>> > I think you said that you are not convinced as to why that has to done.
>> >
>> > My argument is very simple shouldn't a Linux environment allow change in
>> > timezone easily?
>>
>> Oh we do. But if your want configuration to be changable, then mount
>> /etc writable.
>>
>> You have two contradicting goals: you want immutable config, but then
>> you want to change config. So how's that gonna work?
>>
>> If you want your persistent config changable then make it changable,
>> i.e. mount /etc/ writable.
>>
>> > Now I am not an expert in Linux kernel development. But I see that some
>> of
>> > the files, even though they reside in /etc  are linked to file in /run
>> > Like *resolv.conf.  *Which allows dynamic changes.
>>
>> I explained this already. DNS server data today is much less config
>> than state, acquired dynamically via DHCP, hence most distros don#t
>> configure it in /etc so much anymore, but manage it in /run (where
>> transient state is generally kept), and only keep a compat symlink in
>> /etc. If you try to convince people though that the local timezone
>> should just be transient state and not persistent config you'll have a
>> hard time. I for one am certainly not convinced that the timezones are
>> state...
>>
>> I mean, the line between persistent configuration and transient state
>> is blurry, but in the case of DNS settings and timezone settings I
>> certainly can draw a line easily.
>>
>> > timezone activity change is a very basic change one that needs to be
>> > supported by the system. Why guard it with so much.
>>
>> We don't do that. Just make /etc/ writable ffs, if you want stuff in
>> /etc to be changable.
>>
>> Lennart
>>
>> --
>> Lennart Poettering, Berlin
>>
>
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