No subject

under a vm , that is the main goal of this change . 

Have you any suggestion or something where I can improve ? 

>  Also, what if calling systemd-detect-virt
> fails for some reason?

packages requires systemd 
%{?systemd_requires}
BuildRequires: systemd

if systemd-detect-virt doesn't work we should be fixed , one La Palice
answer :) . 

> Regards,
> Dominik

[1] 
https://bugzilla.rpmfusion.org/show_bug.cgi?id=3425#c7

[2]
https://bugzilla.rpmfusion.org/show_bug.cgi?id=3425
https://bugzilla.rpmfusion.org/show_bug.cgi?id=3426

https://bugzilla.rpmfusion.org/show_bug.cgi?id=1357
https://bugzilla.rpmfusion.org/show_bug.cgi?id=1468
https://bugzilla.rpmfusion.org/show_bug.cgi?id=2430
https://bugzilla.rpmfusion.org/show_bug.cgi?id=2442
https://bugzilla.rpmfusion.org/show_bug.cgi?id=2722
https://bugzilla.rpmfusion.org/show_bug.cgi?id=3126
https://bugzilla.rpmfusion.org/show_bug.cgi?id=3506
https://bugzilla.rpmfusion.org/show_bug.cgi?id=3918

Cheers,
-- 
Sérgio M. B.