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

[Andrei Borzenkov]

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
> 
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