[systemd-devel] Waiting for (transient) hostname configuration

[Alessio Igor Bogani]

Hi Lennart,

On Tue, 19 Apr 2022 at 11:41, Lennart Poettering <lennart at poettering.net> wrote:
[...]
> the unit files are *loaded*, i.e. typically at earliest boot, long
> before they are actually *started*. Thus, if you change the hostname

I understand now. It was the evaluation time of the specifier that I
have missed. I have just realized that my question was dumb, sorry for
that.

[...]
> use. If you use systemd-networkd, then the
> sytemd-network-wait-online.service is what you want to use. If you
> enable that then network-online.target should be the point where DHCP
> is acquired and thus also the hostname in effect.

I use systemd-networkd and systemd-networkd-wait-online is enabled but
unfortunately it doesn't work anyway. I have also tried to request
systemd to execute systemd-hostnamed "Before = nss-lookup.target" (*)
without success.
I left the little shell script inside to ExecStart to solve my problem
waiting for a better solution.

Thanks Lennart for time, consideration and kindness.

Have a nice and safe day!

Ciao,
Alessio

(*) All my Units use "After = network-online.target nss-lookup.target"