On Wed, 17.04.13 17:09, Lennart Poettering (lenn...@poettering.net) wrote:
>
> On Tue, 16.04.13 09:11, Koen Kooi (k...@dominion.thruhere.net) wrote:
>
> > Hi,
> >
> > To help with flashing the onboard eMMC of a 100000 boards I'm using
> > systemd-nspawn to run package postinstall scripts that generate UUIDs and
> > some other things and it's working great for that! Every board now has a
> > unique value in /etc/machine-id instead it being empty and systemd
> > randomizing it on startup.
> >
> > What doesn't work however is something like this:
> >
> > systemd-nspawn -D ${PART2MOUNT} /usr/bin/timedatectl set-timezone
> > Europe/Paris
> >
> > or this:
> >
> > systemd-nspawn -D ${PART2MOUNT} /usr/bin/hostnamectl set-hostname
> > BeagleBoneBlack
> >
> > I know I can run the lowlevel 'ln -sf <zoneinfo> /etc/timezone' or echo the
> > name into /etc/hostname, but I'd like to use the *ctl commands because they
> > work and have error handling built-in.
> > it looks like I would need -b to get the *ctl commands to work, but -b
> > doesn't support running single commands and exiting.
>
> timedatectl is just a frontend to timedated. So, without running
> timedated inside of the container this is not going to be easy to do.
Ah, I missed that you'd actually be OK with booting up the whole thing
for this command... You'd just need a nice way to run something after
boot-up is complete, and that immeidately shuts down the container
afterwards, right?
Hmm, here's an idea:
we could add a generator to systemd which looks for "systemd.run=" or so
on the kernel cmdline and simply generates throw-away unit files from
that, that runs the specified command(s) and triggers a shutdown
afterwards... Would that work for you?
i.e. you'd then call:
systemd-nspawn -bD /srv/foobar \
systemd.run='/usr/bin/timedatectl set-timezone Europe/Paris' \
systemd.run='/usr/bin/timedatectl set-hostname BeagleBoneBlack'
and so on...
I think that would be reasonably pretty?
Lennart
--
Lennart Poettering - Red Hat, Inc.
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