Only start logind if dbus is installed

logind fails to start in environments without dbus, such as LXC containers or
servers. Add a startup condition to avoid the very noisy startup failure.

Part of #772700

Gbp-Pq: Topic debian
Gbp-Pq: Name Only-start-logind-if-dbus-is-installed.patch

diff --git a/units/systemd-logind.service.in b/units/systemd-logind.service.in
index 38a7f269aca173af5f5c66ceaaaea009a2b2d766..16f1d9d9f3734eb3c8c618c7abc1a79efc414c9e 100644 (file)
--- a/units/systemd-logind.service.in
+++ b/units/systemd-logind.service.in
@@ -14,6 +14,7 @@ Documentation=https://www.freedesktop.org/wiki/Software/systemd/logind
 Documentation=https://www.freedesktop.org/wiki/Software/systemd/multiseat
 Wants=user.slice
 After=nss-user-lookup.target user.slice
+ConditionPathExists=/lib/systemd/system/dbus.service
 
 # Ask for the dbus socket.
 Wants=dbus.socket