diff mbox series

[v2,1/2] sshd-regen-keys: Start key generation after entropy seed

Message ID 20211015080638.12765-2-florian.bezdeka@siemens.com
State Accepted, archived
Headers show
Series sshd-regen-keys: Fix boot hang on low end hardware | expand

Commit Message

Florian Bezdeka Oct. 14, 2021, 11:06 p.m. UTC 
Especially on low-end systems (including arm on qemu) it could happen
that the key generation took extremly long. As side effect some other
services (like the ones for serial consoles) run into the configured
timeouts.

[ TIME ] Timed out waiting for device /dev/hvc0.
[DEPEND] Dependency failed for Serial Getty on hvc0.
[ TIME ] Timed out waiting for device /dev/ttyAMA0.
[DEPEND] Dependency failed for Serial Getty on ttyAMA0.

Delaying the key generation to the point in time where
systemd-random-seed finished solves this problem. My current
understanding is that the regeneration is waiting for enough entropy
which is being seeded in parallel.

Signed-off-by: Florian Bezdeka <florian.bezdeka@siemens.com>
---
 .../sshd-regen-keys/files/sshd-regen-keys.service                | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/meta/recipes-support/sshd-regen-keys/files/sshd-regen-keys.service b/meta/recipes-support/sshd-regen-keys/files/sshd-regen-keys.service
index af98d5e..1beb664 100644
--- a/meta/recipes-support/sshd-regen-keys/files/sshd-regen-keys.service
+++ b/meta/recipes-support/sshd-regen-keys/files/sshd-regen-keys.service
@@ -3,6 +3,7 @@  Description=Regenerate sshd host keys
 DefaultDependencies=no
 Conflicts=shutdown.target
 After=systemd-remount-fs.service
+After=systemd-random-seed.service
 Before=shutdown.target ssh.service
 ConditionPathIsReadWrite=/etc