Comment # 4 on bug 1204307 from Thorsten Kukuk

(In reply to Axel Braun from comment #0)

> What can we do on that?

Fix pi-hole to not use /srv as Ignaz wrote. Using /srv/www/pihole means this
package will never work with e.g. image based updates anyways and needs to be
fixed in every case. Adding everywhere workarounds as suggested by Ignaz for
transactional-update will not solve the problem, that the FHS requirements for
/srv are not solveable by a Linux distribution and thus /srv should not be used
by packages.

Or, since you are using MicroOS, us pi-hole in a container, since the workload
should be anyways run containerized. This seems to even to be the preferred
method by upstream.