Hi!
It looks to me like you are facing that exact problem mentioned above by @aeckstein
More advice can maybe found here: [Check_mk (deutsch)] CentOS 7 Agent Bakery Autoupdate Problem or here: [Check_mk (deutsch)] SELinux Modul für auto-update bundle im RPM
@andreas-doehler you are right. This “forwarding” message from systemd is no warning or error. This is fixed with Checkmk 2.0 (starting with 2.0.0i2, I think). Instead of “Warning/Error from rpm”, this message will begin with “Ouput from rpm:” now.
However, this never lead to a failed update, and was displayed just for information.