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rng-tools: start rngd early in the boot process again

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It do make sense to start rngd early in the boot process because
otherwise we would need to track every service that might need entropy
and explicitly configure it to start after rngd.

When used with systemd rngd blocked the shutdown process because it
simply missed the proper unit configuration. As the systemd
documentation explains, when using DefaultDependencies=no one also
have to explicitly configure the unit to properly stop at some point.
This is normaly achieved by having Before=shutdown.target and
Conflicts=shutdown.target set for the unit.

To have rngd started early again we reverte the changes done to
rngd.service in commit edf7606822 (rng-tools: fix rngd blocks system
shutdown). To have it properly stopped on shutdown we also add
Before=shutdown.target and Conflicts=shutdown.target.

(From OE-Core rev: a74e7df33e2c8ab2152e3217c0a5df3f65971713)

Signed-off-by: Alban Bedel <alban.bedel@aerq.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Bedel, Alban
2019-07-23 14:11:46 +00:00
committed by Richard Purdie
parent d3ed42ef27
commit 3ac4332d25
1 changed files with 4 additions and 0 deletions
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meta/recipes-support/rng-tools/rng-tools/rngd.service
+4
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@@ -1,5 +1,9 @@
[Unit]
Description=Hardware RNG Entropy Gatherer Daemon
DefaultDependencies=no
After=systemd-udev-settle.service
Before=sysinit.target shutdown.target
Conflicts=shutdown.target
[Service]
EnvironmentFile=-@SYSCONFDIR@/default/rng-tools