PREIN

/bin/sh

# TODO: migrate to systemd-sysusers when guidelines are ready
getent group ow >/dev/null || groupadd -r ow
getent passwd ow >/dev/null || \
    useradd -r -g ow -d /var/empty -s /sbin/nologin \
    -c "1-wire file-system (OWFS) utilities account" ow
exit 0

PREUN

/bin/sh

/usr/share/rpm-helper/del-service owfs $1 owserver.service

POSTIN

/bin/sh

/usr/share/rpm-helper/add-service owfs $1 owserver.service