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

[Shravan Singh]

Hello Andrei,

Thank you for your email. Yes, People have been telling me this:

*Changing timezone globally requires changing /etc/localtime link which
requires writable /etc. *

But no one is telling how to resolve my issue with a read-only rootfs.
There are other files which can be overwritten in /etc that are linked to a
file in /run directory for eg /etc/resolv.conf file.
Then why not /etc/localtime. Why is localtime guarded so much
I refuse to believe that I am the only person facing this problem. But I
did find some leads now. Will keep you posted

But thank you so much for your response

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 Thu, Aug 20, 2020 at 2:00 PM Andrei Borzenkov <arvidjaar at gmail.com>
wrote:

> 20.08.2020 18:55, Shravan Singh пишет:
> >  Hello,
> > I have raspberry-pi cm3 which is running an embedded yocto poky linux
> > warrior branch with mender.
> >
> > I have made my rootfs as read-only because of which I am not able to use
> > timedatectl to change the system time zone.
> >
> > I was looking through the c code which makes me think that even if I did
> > create and change symlink to point to a file in a read and write location
> > of the memory. It won't make any difference.
> >
>
> Changing timezone globally requires changing /etc/localtime link which
> requires writable /etc.
>
> > I looked into the file timedated.c and here is where I wanted some help.
> I
> > see the line
> > * r= get_timzeone()* in the function *context_read_data* all I want to
> know
> > is where is *get_timezone* defined and how is it calling */etc/localtime*
> >
>
> src/basic/time-util.c
>
> grep is wonderful tool.
>
> > Any help will be appreciated. I have raised questions everywhere and I am
> > not getting any help at all.
> >
> > And I am not an embedded developer. This place is my last cry for help
> > 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.
> >
> >
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> >
>
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