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Description of problem:
The usbguard systemd service unit is currently implemented as a Type=simple service. For better user experience, this should be changed to Type=forking as that will allow systemctl to report an error immediately in case the service fails to start.

Forking is currently not implemented in usbguard-daemon, which is the reason for Type=simple usage in the unit file.


Version-Release number of selected component (if applicable):
usbguard-0.7.8-1.el8, usbguard-0.7.8-4.el8

How reproducible:
Always.

Steps to Reproduce:
1. Create an invalid /etc/usbguard/rules.conf file
2. systemctl start usbguard.service

Actual results:
No error reported by systemctl. Admin has to check the status via systemctl status usbguard or journalctl -u usbguard.

Expected results:
systemctl reports a failure immediately.

Additional info:
https://bugzilla.redhat.com/show_bug.cgi?id=1469399

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (usbguard bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2020:4719