Bug 707130

Summary:	sys-apps/fwupd[systemd] with >sys-apps/systemd-250.4: fwupd-refresh.service D-Bus-Connection fails
Product:	Gentoo Linux	Reporter:	Markus Kaindl <markus.kaindl>
Component:	Current packages	Assignee:	Marek Szuba (RETIRED) <marecki>
Status:	RESOLVED CANTFIX
Severity:	normal	CC:	jstein, leonard, markus.kaindl, neb.semqen.ramesses, nrndda, polynomial-c, slashbeast
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	https://github.com/systemd/systemd/issues/22737
Whiteboard:
Package list:		Runtime testing required:	---

Description Markus Kaindl 2020-01-29 17:37:57 UTC

sys-apps/fwupd-1.3.6 comes with a systemd-servicefile fwupd-refresh.service and a matching fwupd-refresh.timer for a daily update-check.
fwupd-refresh.service is failing, because it cannot connect to D-Bus:
fwupdmgr[14452]: Failed to connect to daemon: Failed to connect to system D-Bus: Exhausted all available authentication mechanisms (tried: EXTERNAL) (available: EXTERNAL)

This Error can only be seen, if you remove StandardError=null from the service-file.
This Error does not occur, if you remove DynamicUser=yes.

Reproducible: Always

Steps to Reproduce:
1.systemctl start fwupd-refresh.service

Comment 1 Marek Szuba (RETIRED) archtester

2022-09-07 21:15:35 UTC

Closing this because this isn't really something that can be fixed on fwupd side without deliberately weakening security by disabling DynamicUser support (which I have got no intention of doing), and it doesn't seem like we should (or even could) try to patch it at systemd level either.

At least there is a workaround: install and enable sys-apps/dbus-broker.