On Tue, Aug 13, 2019 at 10:37 PM Zbigniew Jędrzejewski-Szmek
<zbys...@in.waw.pl> wrote:
>
> On Tue, Aug 13, 2019 at 06:02:42PM +0800, Robin Lee wrote:
> > Hi,
> >
> > I packaged xe-guest-utilities with a systemd service for Fedora.
> >
> > But there is an upstream rpm package that include the same service as
> > a sysv one. And the
> > service is enabled with the 'Default-Start' info in the init script
> > after '/sbin/chkconfig --del xe-linux-distribution'.
> >
> > And when people update the package from upstream one to the Fedora
> > one. Since the service changed to a systemd one. The service is then
> > disabled by default without regard to the sysv service.
> >
> > That surprises end users. So the new package should make it compatible
> > in the scriptlets.
> > But which is the proper way?
>
> You can add a %trigger script. Something like this, completely untested:
> %triggerun xe-linux-distribution < …old…version+1…
> if test -e /etc/rc.d/rc3.d/Snn-…; then
> # enable systemd service based on old status
> systemctl enable xe-linux-distribution.service
> fi
Thanks for your tips!
I now use such version:
%triggerun -- %{name}
if /bin/ls /etc/rc3.d/S*%{service_name} >/dev/null 2>&1; then
# Re-enable the service if it was enabled in sysv mode
/usr/bin/systemctl enable %{service_name} >dev/null 2>&1||:
/bin/rm /etc/rc3.d/S*%{service_name} >/dev/null 2>&1||:
/usr/bin/systemctl try-restart %{service_name} >dev/null 2>&1||:
fi
>
> Please note that for new packages, the general guidelines apply
> (https://docs.fedoraproject.org/en-US/packaging-guidelines/DefaultServices/)
> and services should be managed through presets. But keeping enablement
> state on upgrade is outside of the guidelines and a nice thing to do.
>
> Zbyszek
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