rngd needs to start after `systemd-udev-settle` in order for the kernel
modules of the random source hardware to be loaded before it is started.

However, since the `rngd.service` does not require or want
`systemd-udev-settle.service` it might not be scheduled for start and
the `After=systemd-udev-settle.service` there has no effect.

Adding `Wants=systemd-udev-settle.service` provides a weak requirement
to it, so that the `rngd` is started after it, if possible.

Signed-off-by: Claudius Heine <ch@denx.de>
---

Hi,

this is a fix, which should probably be backported to the maintained releases.

regards,
Claudius

 meta/recipes-support/rng-tools/rng-tools/rngd.service | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meta/recipes-support/rng-tools/rng-tools/rngd.service b/meta/recipes-support/rng-tools/rng-tools/rngd.service
index 0559b97991..568686e80e 100644
--- a/meta/recipes-support/rng-tools/rng-tools/rngd.service
+++ b/meta/recipes-support/rng-tools/rng-tools/rngd.service
@@ -3,6 +3,7 @@ Description=Hardware RNG Entropy Gatherer Daemon
 DefaultDependencies=no
 After=systemd-udev-settle.service
 Before=sysinit.target shutdown.target
+Wants=systemd-udev-settle.service
 Conflicts=shutdown.target

 [Service]
--
2.33.0


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