[systemd-devel] Q: Start network in chroot?

[Topi Miettinen]

On 13.6.2022 11.09, Ulrich Windl wrote:
> Hi!
> 
> Two questions:
> 1) Why can't I use "systemctl start network" in a chroot environment (e.g. mounting the system from a rescue medium to fix a defective kernel)? When I try I get: "Running in chroot, ignoring command 'start'"

 From docs/ENVIRONMENT.md:
* `$SYSTEMD_IGNORE_CHROOT=1` — if set, don't check whether being invoked 
in a
   `chroot()` environment. This is particularly relevant for systemctl, 
as it
   will not alter its behaviour for `chroot()` environments if set. 
Normally it
   refrains from talking to PID 1 in such a case; turning most 
operations such
   as `start` into no-ops.  If that's what's explicitly desired, you might
   consider setting `$SYSTEMD_OFFLINE=1`.

-Topi