From: Stefan Eichenberger <[email protected]>

If console=null systemd-udevd throws an assertion which prevents the
system from booting. This patch redirects stdin, stdout and stderr to
/dev/null in case that the console can't be opened so that udevd still
boots.

A systemd issue was reported here. However, they will not fix this
specific use-case:
https://github.com/systemd/systemd/issues/13332

Signed-off-by: Stefan Eichenberger <[email protected]>
---
 meta/recipes-core/initrdscripts/initramfs-framework/udev | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/meta/recipes-core/initrdscripts/initramfs-framework/udev 
b/meta/recipes-core/initrdscripts/initramfs-framework/udev
index 87551ff4a9..4898b89246 100644
--- a/meta/recipes-core/initrdscripts/initramfs-framework/udev
+++ b/meta/recipes-core/initrdscripts/initramfs-framework/udev
@@ -41,6 +41,9 @@ udev_run() {
        mkdir -p /run
        mkdir -p /var/run
 
+       # Workaround if console=null, systemd-udevd needs valid stdin, stdout 
and stderr to work
+       sh -c "exec 4< /dev/console" || { exec 0> /dev/null; exec 1> /dev/null; 
exec 2> /dev/null; }
+
        $_UDEV_DAEMON --daemon
        udevadm trigger --action=add
        udevadm settle
-- 
2.17.1

-- 
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