Can we close this issue?
I have a solution that works. I will provide it to mender and hopefully they will maintain it if not then I will be happy to maintain it.
On Wed, Sep 9, 2020 at 11:30 AM Lennart Poettering <lennart@xxxxxxxxxxxxxx> wrote:
On Mi, 09.09.20 09:23, Colin Guthrie (gmane@xxxxxxxxxxxxxx) wrote:
> Alvin Šipraga wrote on 08/09/2020 22:54:
> > Hi,
> >
> > On 9/8/20 4:12 PM, Colin Guthrie wrote:
> >
> >> 2. Set your /etc/ master image to make /etc/localtime to be a symlink to
> >> /run/localtime and then ensure /run/localtime is a symlink to the
> >> appropriate file in /usr during early boot (e.g. in initramfs). Then
> >> when you want to to change the timezone, just update the /run/ symlink.
> > This might not work as expected - systemd sometimes assumes that
> > /etc/localtime is a symlink into /usr/share/zoneinfo and will not
> > understand double symlinks. See src/basic/time-util.c:get_timezone() for
> > at least one example.
>
> But that really depends on what you define as "not work". Sure
> timedatectl may not report correctly, but that shouldn't matter too much
> if you're not using to query or update (the latter obviously won't work
> anyway), but for the purposes of software *using* the timezone, I don't
> tihnk anything will actually break.
Actually, that's not quite true:
https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx/message/TVVXVO5HJGH5JOAWJJDJNA3BPBPPRS37/
(This is a current thread on the fedora ML)
glibc doesn't care what /etc/localtime is, but all code that wants to
know the timezone name, i.e. a string like "Europe/Berlin" generally
requires /etc/symlink to be a readable symlink.
https://www.freedesktop.org/software/systemd/man/localtime.html
Lennart
--
Lennart Poettering, Berlin
_______________________________________________
systemd-devel mailing list
systemd-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/systemd-devel
_______________________________________________ systemd-devel mailing list systemd-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/systemd-devel
